CN109550495A - W adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount - Google Patents
W adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount Download PDFInfo
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- steel slag
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 72
- 239000010959 steel Substances 0.000 title claims abstract description 72
- 239000002893 slag Substances 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 54
- 239000003054 catalyst Substances 0.000 claims abstract description 40
- 239000003513 alkali Substances 0.000 claims abstract description 29
- 239000010430 carbonatite Substances 0.000 claims abstract description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 239000004925 Acrylic resin Substances 0.000 claims description 7
- 229920000178 Acrylic resin Polymers 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 3
- 238000001723 curing Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 238000001029 thermal curing Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 239000011396 hydraulic cement Substances 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 206010013786 Dry skin Diseases 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 abstract description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 16
- 239000001257 hydrogen Substances 0.000 abstract description 16
- 230000015556 catabolic process Effects 0.000 abstract description 14
- 230000001699 photocatalysis Effects 0.000 abstract description 13
- 239000000975 dye Substances 0.000 abstract description 11
- 239000002351 wastewater Substances 0.000 abstract description 9
- 238000004043 dyeing Methods 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract description 3
- 238000013459 approach Methods 0.000 abstract description 2
- 238000010531 catalytic reduction reaction Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000012745 toughening agent Substances 0.000 abstract 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 24
- OLSOUGWNONTDCK-UHFFFAOYSA-J tetrasodium 5-amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate Chemical compound [Na+].[Na+].[Na+].[Na+].C1=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(N=NC3=CC=C(C=C3OC)C=3C=C(C(=CC=3)N=NC=3C(=CC4=CC(=CC(N)=C4C=3O)S([O-])(=O)=O)S([O-])(=O)=O)OC)=C(O)C2=C1N OLSOUGWNONTDCK-UHFFFAOYSA-J 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 5
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 229910002492 Ce(NO3)3·6H2O Inorganic materials 0.000 description 3
- 208000035126 Facies Diseases 0.000 description 3
- CQGVSILDZJUINE-UHFFFAOYSA-N cerium;hydrate Chemical compound O.[Ce] CQGVSILDZJUINE-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- QQZMWMKOWKGPQY-UHFFFAOYSA-N cerium(3+);trinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O QQZMWMKOWKGPQY-UHFFFAOYSA-N 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012417 linear regression Methods 0.000 description 2
- 238000003760 magnetic stirring Methods 0.000 description 2
- 238000007699 photoisomerization reaction Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229940101006 anhydrous sodium sulfite Drugs 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002186 photoactivation Effects 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0266—Processes for making hydrogen or synthesis gas containing a decomposition step
- C01B2203/0277—Processes for making hydrogen or synthesis gas containing a decomposition step containing a catalytic decomposition step
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
- C01B2203/1082—Composition of support materials
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of W to adulterate CeO2The preparation method of the novel steel slag based cementitious material of different loads amount, using steel slag as raw material, sodium hydroxide is exciting agent, and silicon ash is toughener, prepares alkali-activated carbonatite steel slag based cementitious material；Using mechanical property as evaluation index, the cementitious material of preparation is carrier, synthesizes W by incipient wetness impregnation method and adulterates CeO2Load alkali-activated carbonatite steel slag based cementitious material catalyst.On the one hand the new way that industrial solid castoff has carried out high value added utilization is explored；On the other hand, the catalyst of preparation can be used for photocatalytic oxidation degradation waste water from dyestuff, it can be also used for photo catalytic reduction and decompose water hydrogen making, basic research for the application of such solid waste based cementitious material provides a kind of new approaches, all have great importance for the sustainable development of steel industry, the sewage treatment of dyeing and new energy field, important resource, economy, environment and social benefit certainly will be generated.
Description
Technical field
The present invention relates to fields prepared by solid waste resource recovery high value added utilization and new catalyst, and in particular to
A kind of W doping CeO2The preparation method of the novel steel slag based cementitious material of different loads amount.
Background technique
Steel slag is the discarded object of power boiler discharge that steel and iron industry generates, and output capacity is about the 15-20% of crude steel yield.With state
The discharge amount of the rapid development of people's economy, steel slag also sharply increases, and according to statistics, 2016, the discharge amount of China's steel slag was about
1.21 hundred million tons.These steel slags are taken as waste to accumulate for a long time, not only occupy a large amount of land resource, but also cause ecology
Therefore the serious pollution of environment improves the recycling of such solid waste using extremely urgent, explores the scale application of steel slag
With new way, it is of great significance to the sustainable development of China's steel and iron industry.
China is the first big country of dyeing textile, and printing and dyeing textile is the discharge rich and influential family of industrial wastewater, accounts for entire industry
35% or so of wastewater discharge.It is reported that China is in 928000 tons of dyestuff of production in 2016, position is at the forefront in the world, and one ton
DYE PRODUCTION will discharge 700m3Above waste water.According to incompletely statistics, dyeing and printing sewage daily discharge amount in China's is about 3 × 106m3,
The every processing 100m fabric of printing and dyeing mill can generate 3~5m3Waste water, every year about 6~700,000,000 m3Dyeing waste water is discharged into water environment, by
This and caused by great ecological disruption and economic loss be immeasurable.In recent years, the discharge in relation to sewage, dirt, exhaust gas
Standard and regulation are not only quantitatively continuously increased, and standard is also more stringent and harsh, it is therefore desirable to be continually developed new efficient
Low consumption, safe and harmless purifying treatment method.
Photocatalytic degradation have degradation speed fast, degradation non-selectivity, oxidation reaction condition it is mild, it is without secondary pollution, answer
With the wide advantage of range.Although such have much by the catalytic oxidation technologies of catalyst of semiconductor better than other oxidation technologies
Aspect, still, such research still there is the technical problem of several key, make its industrially using by very big limit
System.These problems include: that quantum yield is low (about 4%)；Solar energy utilization ratio is low；The load technology of photochemical catalyst；Photochemical catalyst
The dispersion of powder；Photochemical catalyst preparation cost is higher.
To solve these problems, the method mainly studied at present has (1) noble metal loading；(2) metal ion mixing；(3)
Nonmetal doping；(4) semiconductors coupling；(5) surface sensitization；(6) catalyst loads；(7) dye photoactivation.Just at present
For, the photochemical catalyst for preparing high activity just needs to adulterate metallic element or semiconductors coupling is into photochemical catalyst, but nothing
By the cost from catalytic photocatalytic activity or raw material, for the complexity for preparing the technique of photochemical catalyst, all it is difficult to fit
For industrialized production.
Therefore, how to be urged using the cheap raw material production higher Photocatalysis Function Material of photocatalytic activity as light
Change an important research topic in oxidation technology.
Summary of the invention
To solve the above problems, the present invention provides a kind of W to adulterate CeO2The novel steel slag base rubber of different loads amount coagulates material
The preparation method of material.
To achieve the above object, the technical scheme adopted by the invention is as follows:
W adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount, includes the following steps:
S1, using inner blending method, be in mass ratio 1: 9 ingredient with steel slag after silicon ash is dried, mix, obtain mixture；
S2, it is operated referring to GB/T17671-1999 " Test method for strength of hydraulic cement mortar " standard, by appropriate quality point
Number is added in SJ-160 type glue sand agitator for 37.5% NaOH solution with the aqueous solution for being dispersed with acrylic resin, is poured into
Mixture, 62 ± 5r/min mix slowly 60s, and 125 ± 10r/min quickly stirs 30s, stop stirring 90s, quickly stir 60s
Afterwards, slurry is poured into 40mm × 40mm × three gang mould of 160mm steel tool rapidly, is placed in jolt ramming on ZT-96 type glue sand plain bumper；
Then it is loaded into sealed plastic bag, is put into thermostatic drying chamber in 80 DEG C of thermal curing 6h, conserves 1d demoulding at room temperature, then marking
After conserving 2d in quasi- curing box, test block is placed in Muffle furnace, 450 DEG C of calcinings are warming up to the programmed rate of 2 DEG C/min,
6h is kept the temperature, test block is taken out after being cooled to room temperature with furnace chamber；
S3, test block after roasting is taken, rejects surface layer, takes its core and break into pieces, taking partial size with square hole screen sieve is 0.180-
The sample particle of 0.315mm；180g particle sample is taken, is divided into two equal portions, is placed in the autoclave of polytetrafluoroethylliner liner,
It is separately added into 100mL water, reacts 8h under the conditions of 130 DEG C, after cooled to room temperature, sample is taken out and in vacuum drying box
In 115 DEG C of dry 4h；Then the particle sample of two equal portions 90g is added separately to fill 400mL 2.5mol/L NH4Ac is water-soluble
Ion exchange is carried out in liquid, interval 2h replaces a NH4Ac solution after being repeated 3 times, is washed repeatedly with deionized water, is filtered,
At 115 DEG C after dry 4h, NH is obtained4 +Exchange alkali-activated carbonatite steel slag based cementitious material carrier；
S4, using infusion process, with ammonium metatungstate ((NH4)6W7O24·6H2It O) is the source W, six nitric hydrate cerium (Ce (NO3)3·
6H2It O) is the source Ce, preparation W adulterates CeO2The cementitious material catalyst of different loads amount, wherein to adulterate object CeO2Quality hundred
Score meter, the doping of W are 0.3wt%；With NH4 +Exchange alkali-activated carbonatite steel slag based cementitious material carrier quality percentage meter, CeO2
Doping be respectively 1wt%, 8wt%, 16wt%.
Further, in the step S2 NaOH solution dosage be mixture total amount 4wt%；The acrylic resin
Dosage be mixture total amount 0.1wt%, the ratio of mud 0.32.
Further, the step S4 specifically comprises the following steps:
According to design (calculated) load amount, six nitric hydrate ceriums and ammonium metatungstate are accurately weighed, is dissolved in 20mL distilled water, stirs
It mixes to after being completely dissolved, is slowly added into and fills 40g NH obtained4 +Exchange alkali-activated carbonatite steel slag based cementitious material carrier granular
In beaker；It is stirred while solution is added, keeps solution evenly dispersed on a support material, 22h is impregnated, then at 115 DEG C
Lower drying 4h, then the sample after drying is put into Muffle furnace, 400 DEG C are warming up to the programmed rate of 2 DEG C/min, heat preservation
After 4h, sample obtains W doping CeO with furnace chamber cooled to room temperature2The novel steel slag based cementitious material of different loads amount.
The present invention prepares novel catalyst using steel slag as catalyst carrier, is used for dye wastewater degradation and decomposition
On the one hand water hydrogen preparation field is explored the new way that industrial solid castoff has carried out high value added utilization；On the other hand, it prepares
Catalyst can be used for photocatalytic oxidation degradation waste water from dyestuff, can be also used for photo catalytic reduction decompose water hydrogen making, for this
The basic research of class solid waste based cementitious material application provides a kind of new approaches, sustainable development, printing and dyeing for steel industry
The sewage treatment of industry and new energy field all have great importance, and certainly will generate important resource, economy, environment and society
Benefit.
Detailed description of the invention
Fig. 1 is degradation experiment device figure.
Fig. 2 is acrylic resin TGA-DSC figure.
Fig. 3 is Ce (NO3)3·6H2O TGA-DSC figure.
Fig. 4 is CeO2XRD spectrum.
Fig. 5 is sample XRD spectrum.
Fig. 6 is sample SEM photograph.
Fig. 7 is that the UV-vis DRS of sample analyzes map.
Fig. 8 is that the PL of sample schemes.
Fig. 9 is 0.4g catalyst degradation 50mg/L direct sky blue 5B degradation rate.
Figure 10 is degradation reaction first order kinetics figure.
Figure 11 is that sample produces hydrogen effect picture.
Figure 12 is process flow chart of the invention.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
Embodiment
W adulterates CeO2The preparation of support type alkali-activated carbonatite steel slag base catalyst
1. the preparation of alkali-activated carbonatite steel slag based cementitious material
The present embodiment is using Hancheng dragon steel steel slag, through ball mill grinding, the sieving of 0.08mm square hole screen.Pass through Li Shi bottles
Measuring density is 3.03g/cm3, show that specific surface area is 490m with Bo Shi specific area instrument2/kg.Steel slag material chemical component such as table 1
It is shown.
1 steel slag material chemical component of table
First drying silicon ash is spare, and silicon ash and steel slag is dry-mixed uniformly, dissolves 60g NaOH with 100ml water, and aqueous slkali is quiet
Aqueous solution that is cool and being dispersed with acrylic resin is put to be added to together in SJ-160 type glue sand agitator, it will be weighed
1500g mixture (steel slag and silicon ash 9: 1 ingredients in mass ratio), which pours into, to be stirred, and is mixed slowly 60s, is quickly stirred 30s, stops
90s is only stirred, 60s is quickly stirred.Slurry is poured into tri- steel die of 40mm × 40mm × 160mm rapidly after terminating stirring
In, it is placed in jolt ramming on ZT-96 type glue sand plain bumper.Then it is loaded into sealed plastic bag, is put into thermostatic drying chamber at 80 DEG C
Thermal curing 6h conserves 1d at room temperature, demoulding, then 2d is conserved in standard curing box.Test block after taking maintenance 3d is placed in Muffle furnace
In, after being warming up to 450 DEG C with the programmed rate of 2 DEG C/min, 6h is kept the temperature, test block after furnace chamber cooled to room temperature with taking
Out.The charge ratio for preparing alkali-activated carbonatite steel slag based cementitious material is as shown in table 2.
2 alkali-activated carbonatite steel slag based cementitious material charge ratio of table
2. the preparation of alkali-activated carbonatite steel slag based cementitious material carrier
Test block after roasting is taken, surface layer is rejected, takes its core and break into pieces, taking partial size with square hole screen sieve is 0.18-0.315mm
The sample particle of (80 mesh~55 mesh).180g sample particle is divided into two equal portions, is put into the polytetrafluoroethylene (PTFE) of autoclave
In liner, it is separately added into 100mL water, reacts 8h under the conditions of 130 DEG C, after cooled to room temperature, sample is taken out in vacuum
115 DEG C of drying 4h in drying box.
Then the sample particle of two equal portions 90g is added separately to fill 400mL 2.5mol/L NH4In Ac aqueous solution into
Row ion exchange replaces a NH every 2h4Ac solution after being repeated 3 times, is washed repeatedly with deionized water, is filtered, at 115 DEG C
After lower dry 4h, NH is obtained4 +Exchange alkali-activated carbonatite steel slag based cementitious material carrier.
3. the preparation of loaded catalyst
Using infusion process, 0.3wt%W is prepared (with ammonium metatungstate (NH4)6W7O24·6H2O is the source W, relative to CeO2Quality
Percentage meter) doping 1wt%, 8wt% and 16wt%CeO2(with six nitric hydrate cerium Ce (NO3)3·6H2O is the source Ce, relative to
Carrier quality percentage meter) load catalyst.
Weigh three parts of 40g NH of equivalent4 +Carrier sample after exchange is respectively put into three beakers, according to experimental design, meter
The charge ratio of six nitric hydrate cerium of cerium source and tungsten source ammonium metatungstate is calculated, chemical levels are as shown in table 3.
3 W of table adulterates CeO2The charge ratio of the photochemical catalyst of different loads amount
By (the NH of the different content weighed up4)6W7O24·6H2O and Ce (NO3)3·6H2O is dissolved in 20mL distilled water, stirring
It to being completely dissolved, is slowly added into the beaker for filling carrier sample, is stirred so that carrier granular soaks completely, to make
Solution may be uniformly dispersed on carrier material, impregnates 22h, 4h is then dried at 115 DEG C, then the sample after drying is put into
In Muffle furnace, 400 DEG C of calcinings are warming up to the programmed rate of 2 DEG C/min, keep the temperature 4h, then sample is cooled to room with furnace chamber
Temperature is taken out, that is, prepares equivalent W doping 1wt%, 8wt% and 16wt%CeO2The novel alkali-activated carbonatite steel slag based cementitious material of load
Photochemical catalyst is denoted as respectively: W-1%CeO2/ ASS, W-8%CeO2/ ASS and W-16%CeO2/ASS。
The performance evaluation of catalyst
Photocatalysis simulation degradation direct sky blue 5B waste water from dyestuff
0.4g sample, i.e. 1wt%, 8wt%, 16wt%CeO are weighed respectively2The photochemical catalyst and alkali-activated carbonatite steel of volume
Slag based cementitious material sample, NH4 +Exchange carrier sample, pure CeO2.Being added separately to dye strength is 50mg/L, is contained
In the direct sky blue 5B waste water from dyestuff solution beaker of 100mL simulation, its initial absorbance A is measured0, then reaction solution is placed on secretly
It carries out adsorption reaction under room, after 15min, reaches adsorption equilibrium to it, it is enterprising that reaction solution is placed on reaction unit as shown in Figure 1
The reaction of row photocatalytic degradation, ultraviolet light source are the TL-D15W type of Philips company, Holland production, are spaced 10min for reaction solution
It takes out, takes its supernatant after centrifugation, measure reaction solution t with ultraviolet specrophotometersThe absorbance at moment is At。
Degradation experiment device is as shown in Figure 1, it is 50mg/L, the 100mL direct sky blue 5B of simulation that concentration is first added in beaker
Dye solution after being put into catalyst sample and magneton, after darkroom adsorption reaction reaches balance, is placed under the ultraviolet lamp such as figure, beats
Magnetic stirring apparatus is opened, carries out photocatalytic degradation reaction at room temperature.
Photocatalytic water splitting produces hydrogen
By 4.36g anhydrous sodium sulfite, 6.25g vulcanized sodium, mixing is put into the reactor equipped with 100mL ultrapure water, is stirred
After mixing dissolution, 0.1g photochemical catalyst is added, is put into magneton, then seals reactor with vacuum resin, and reactor is sealed
It accesses in reaction unit, opens 300W xenon lamp and magnetic stirring apparatus, carry out the experiment of photocatalysis Decomposition aquatic products hydrogen.Reaction 5 hours, often
Every other hour, a gas is extracted by the cycle cooling plating drum of sampling, record hydrogen goes out peak position and integral area, in conjunction with
Theoretical formula calculates the yield of photochemical catalyzing hydrogen making.
As a result
The mechanical property of alkali-activated carbonatite steel slag based cementitious material
The anti-folding of alkali-activated carbonatite steel slag based cementitious material 3d, compression strength are as shown in table 4, by table it can be seen that acrylic acid tree
The addition of fat liquor has certain reinforcing effect not only without the mechanical property of influence initial sample instead.On the other hand, when
After 450 DEG C of roasting 6h, compression strength has significantly to be increased by two groups of samples, wherein the propylene of incorporation 0.1wt%
The compression strength of steel slag based cementitious material prepared by acid resin rises to 20.4MPa, improves 28.3% before relatively roasting, shows
450 DEG C of roastings help to strengthen steel slag based cementitious material matrix.
4 alkali-activated carbonatite of table and alkali-activated carbonatite steel slag based cementitious material intensity
The characterization of alkali-activated carbonatite steel slag based cementitious material catalyst
X-ray fluorescence spectra analysis
Steel slag raw material (Steel slag), novel alkali-activated carbonatite steel slag cementitious material (ASS), NH4 +Exchange novel alkali-activated carbonatite steel
Slag based cementitious material (NH4 +- ASS) and the different CeO of W doping2The novel alkali-activated carbonatite steel slag based cementitious material catalyst of load capacity
XRF analysis the results are shown in Table 5.
The analysis of 5 sample composition of table
From the data in the table: the Na in steel slag (Steel slag)2O content is 0.12%, in the work of exciting agent NaOH
Na under, in novel alkali-activated carbonatite steel slag cementitious material (ASS) sample+Content increases to 4.21%；By NH4 +After exchange, Na+
Content significantly reduce；After doping dipping, WO3And CeO2Content obviously increases, almost the same with the calculated results.
TGA-DSC analysis
As shown in Figure 2: in 235-430 DEG C of temperature range, an apparent endothermic peak occur, represent acrylic resin hair
Solution estranged generates water and carbon dioxide.When temperature reaches 430 DEG C, weightlessness reaches 95.82%, reaches balance later, therefore can
To determine the temperature of roasting alkali-activated carbonatite steel slag based cementitious material for 450 DEG C.
As shown in Figure 3: in 55-220 DEG C of temperature range, two endothermic peaks occur.Its Thermal Decomposition Mechanism are as follows: in 55-220
Within the scope of DEG C, occur to combine sloughing for water, weightlessness has reached 25.34%, the theory of this and foundation cerium nitrate hexahydrate chemical formula
Calculating is consistent.After this, the decomposition reaction of cerous nitrate occurs, generates ceria and NOX, weightlessness reaches 34.91%.Two
The total weight loss in a stage reaches 60.25%.Weightlessness no longer occurs after 360 DEG C, reaction reaches balance.Therefore, in order to
Keep the decomposition reaction of cerium nitrate hexahydrate complete, the maturing temperature of load semiconductor ceria is set to 400 DEG C.
XRD analysis
Fig. 4 is CeO2XRD spectrum, apparent characteristic peak, 2 angles θ are respectively 28.54 ° as we can see from the figure,
33.07 °, 47.47 °, 56.33 °, the indices of crystallographic plane correspond respectively to illustrate to roast Ce for (111), (200) (220), (311)
(NO3)3·6H2The CeO of the higher cubic phase of the available purity of O2。
Fig. 5 is steel slag (Steel Slag, abridge SS), NH4 +Exchange novel alkali-activated carbonatite steel slag based cementitious material (abbreviation NH4 +- ASS), W adulterate 1wt%CeO2It loads novel alkali-activated carbonatite steel slag base catalyst and (writes a Chinese character in simplified form W-1%CeO2/ ASS), W-8%CeO2/
ASS and W-16%CeO2/ ASS is respectively to load 8wt%, 16wt%CeO2Support type alkali-activated carbonatite steel slag base catalyst XRD diagram
Spectrum.As can be seen from the figure contain C in steel slag raw material3S、C2S, monticellite, ferrous oxide etc..It is raw after hydration reaction
At C-S-H (Calcium Silicate Hydrate, Ca1.5SiO3.5·xH2O).In W-16%CeO2The XRD of/ASS sample
Occur apparent disperse peak in figure, illustrates the CeO of load2It is present in carrier in the form of unbodied.The chemistry of mineral facies
Formula, card number 2 angle θ corresponding with characteristic peak are as shown in table 6.
The mineral facies information of 6 sample of table
Sem analysis
Fig. 6 is the SEM photograph of sample.Wherein, Fig. 6 (a) is the SEM photograph of steel slag raw material, and steel slag is former as can be seen from Figure
Material is the irregular shape of size unevenness.Fig. 6 (b) is CeO2SEM photograph, it can be seen that CeO2In irregular bulk, structure
It is more loose.Fig. 6 (c) is NH4 +The SEM photograph of-ASS sample, it can be seen that steel slag and alkali-activator are after hydration reaction, shape
At comparatively dense gel mineral facies.Fig. 6 (d), 6 (e) and 6 (f) be W-1%CeO respectively2/ ASS, W-8%CeO2/ ASS and
W-16%CeO2The SEM photograph of/ASS sample, it is seen that when load capacity is less, shadow of the loaded article to carrier material
It rings less, sample structure is comparatively dense；There are more nothings with increasing for oxide semiconductor load capacity, between laminated structure
Shape loaded article attachment.
UV-Vis DRS (UV-vis DRS) analysis
Fig. 7 is that the UV-vis DRS of sample analyzes map, measures CeO by tangential method2Maximum absorption wave it is a length of
404nm.It is observed by figure, the photochemical catalyst maximum absorption wavelength of different loads amount is relative to pure CeO2For, absorption maximum
Red shift has occurred in wavelength, and maximum absorption wavelength sequence is W-8%CeO2/ ASS > W-16%CeO2/ ASS > W-1%CeO2/
ASS, this illustrates that W doping changes CeO2Absorbing wavelength threshold value.
Trans cis photoisomerization analysis
Fig. 8 is the trans cis photoisomerization of catalyst samples.It can be seen from the figure that four kinds of samples are to be in wavelength
It is excited under the light of 310nm, with becoming larger for wavelength, fluorescence intensity enhances constantly；When wavelength reaches 470nm,
Reach maximum fluorescence intensity, is then gradually reduced again.Substance is when absorbing entire exciting light, fluorescence intensity CeO2> W-
16%CeO2/ ASS > W-8%CeO2/ ASS > W-1%CeO2/ASS。
Load 16%CeO2Catalyst stimulating activity highest, and their stimulating activity is with the increase of volume and gradually
It reduces, this is because doping is lower under same light intensity, optical absorption is better and the photoelectron in catalyst is increased
Adding increases its activity.Thus hydrogen output is demonstrated with CeO in catalyst2The increase hydrogen output of volume gradually decreases.
Photocatalytic degradation direct sky blue 5B interpretation of result
The degradation rate of direct sky blue 5B
The degradation rate calculation formula of direct sky blue 5B is as follows:
In formula: D: the degradation rate of direct sky blue 5B；
C0: the initial concentration of direct sky blue 5B；
Ct: the concentration of t time direct sky blue 5B；
A0: the initial initial absorbance of direct sky blue 5B；
At: the absorbance of t time direct sky blue 5B.
W-8%CeO as can be seen from Figure 92/ ASS sample has best Photocatalytic activity, in the time of 60min
Interior, for 0.4g catalyst to the direct sky blue 5B solution degradation rate of the 50mg/L of 100mL up to 100%, this may be due to three
W-8%CeO in the catalyst sample of a different loads amount2The dispersion degree of/ASS active constituent is best, is capable of forming more electricity
Sub- hole pair increases reactivity bit quantity, generates more active materials, to increase photocatalysis efficiency.
The linear regression coeffficient R of degradation reaction dynamics simulations at different levels as can be seen from Table 7, the wherein level-one of catalyst
Kinetics linear regression coeffficient is maximum, illustrates that the degradation reaction meets First-order kinetics equation.Photocatalytic degradation is straight
It connects sky blue 5B dyestuff reaction and meets first-order kinetics, that is Ln (C0/Ct) with reaction time t be linear relationship, Tu10Wei
Degradation reaction first order kinetics figure.
7 degradation reaction of table dynamics related coefficients at different levels
8 degradation reaction first _ order kinetics equation of table
The evaluation of photochemical catalyzing H2-producing capacity
Hydrogen output is detected in gas chromatograph, and records its peak dot zones values, passes through its hydrogen output of its calculated by peak area, meter
It is as follows to calculate formula:
Hydrogen output unit is μm ol/g, and A is peak area in formula.
Fig. 1 is NH4 +- ASS, CeO2And W-1%CeO2/ ASS, W-8%CeO2/ ASS, W-16%CeO2/ ASS catalyst
Decompose the effect picture of aquatic products hydrogen.As seen from the figure: W-1%CeO2/ ASS catalyst shows highest production hydrogen activity, in 5h
Interior hydrogen output reaches 2930.0 μm of ol/g.
This is consistent with photoluminescence characterization result, W-1%CeO2/ ASS sample has minimum fluorescence intensity, photoproduction electricity
Son-hole-recombination rate is low, thus photocatalysis chemical activity with higher.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (3)
1.W adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount, it is characterised in that: including walking as follows
It is rapid:
S1, using inner blending method, be in mass ratio 1: 9 ingredient with steel slag after silicon ash is dried, be uniformly mixed, obtain mixture；
S2, it is operated referring to GB/T17671-1999 " Test method for strength of hydraulic cement mortar " standard, is by appropriate mass fraction
37.5% NaOH solution and the aqueous solution for being dispersed with acrylic resin are added in SJ-160 type glue sand agitator, pour into mixing
Material, 62 ± 5r/min mix slowly 60s, and 125 ± 10r/min quickly stirs 30s, stop stirring 90s, fast after quickly stirring 60s
Speed pours into slurry in 40mm × 40mm × three gang mould of 160mm steel tool, is placed in jolt ramming on ZT-96 type glue sand plain bumper；Then
It is loaded into sealed plastic bag, is put into thermostatic drying chamber in 80 DEG C of thermal curing 6h, conserves 1d at room temperature, is demoulded, then in standard
After conserving 2d in curing box, test block is placed in Muffle furnace, 450 DEG C of calcinings are warming up to the programmed rate of 2 DEG C/min, protected
Warm 6h, test block after furnace chamber cooled to room temperature with taking out；
S3, test block after roasting is taken, rejects surface layer, takes its core and break into pieces, taking partial size with square hole screen sieve is 0.180-0.315mm's
Sample particle；180g particle sample is taken, is divided into two equal portions, is placed in the autoclave of polytetrafluoroethylliner liner, be separately added into
100mL water reacts 8h under the conditions of 130 DEG C, after being cooled to room temperature, by sample taking-up and 115 DEG C of dryings in vacuum drying box
4h；Then the particle sample of two equal portions 90g is added separately to fill 400mL 2.5mol/L NH4Carried out in Ac aqueous solution from
Son exchange, interval 2h replace a NH4Ac solution after being repeated 3 times, is washed repeatedly with deionized water, is filtered, and is done at 115 DEG C
After dry 4h, NH is obtained4 +Exchange alkali-activated carbonatite steel slag based cementitious material carrier；
S4, using infusion process, with ammonium metatungstate for the source W, six nitric hydrate ceriums are the source Ce, and preparation W adulterates CeO2Different loads amount
Cementitious material catalyst, wherein to adulterate object CeO2Mass percentage, the doping of W are 0.3wt%；With NH4 +Exchange alkali
Excite steel slag based cementitious material carrier quality percentage meter, CeO2Doping be respectively 1wt%, 8wt%, 16wt%.
2. W as described in claim 1 adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount, it is special
Sign is: the dosage of NaOH solution is the 4wt% of mixture quality in the step S2；The dosage of the acrylic resin is mixed
Close the 0.1wt% of material quality, the ratio of mud 0.32.
3. W as described in claim 1 adulterates CeO2The preparation method of the novel steel slag based cementitious material of different loads amount, it is special
Sign is: the step S4 specifically comprises the following steps:
According to design (calculated) load amount, six nitric hydrate ceriums and ammonium metatungstate are accurately weighed, is dissolved in 20mL distilled water, stirring is extremely
After being completely dissolved, it is slowly added into and fills 40g NH obtained4 +Exchange the beaker of alkali-activated carbonatite steel slag based cementitious material carrier granular
In；It is stirred while solution is added, keeps solution evenly dispersed on a support material, impregnated 22h, then dried at 115 DEG C
Dry 4h, then the sample after drying is put into Muffle furnace, 400 DEG C are warming up to the programmed rate of 2 DEG C/min, keeps the temperature 4h
Afterwards, sample obtains W doping CeO with furnace chamber cooled to room temperature2The novel steel slag based cementitious material of different loads amount.
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| CN113083285A (en) * | 2019-12-23 | 2021-07-09 | 天津大学 | W element doped cerium oxide catalyst and preparation method thereof |
| CN114907042A (en) * | 2022-05-26 | 2022-08-16 | 福建工程学院 | Photocatalytic steel slag floating concrete and preparation method thereof |
| CN115814807A (en) * | 2021-12-31 | 2023-03-21 | 广东职业技术学院 | Load skeleton prepared from nickel slag, incineration fly ash and arsenic alkali slag and application thereof |
| CN115869999A (en) * | 2022-12-29 | 2023-03-31 | 北京化工大学 | Preparation method of steel slag supported catalyst for photocatalysis and steel slag supported catalyst |
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| CN113083285B (en) * | 2019-12-23 | 2022-10-04 | 天津大学 | W element doped cerium oxide catalyst and preparation method thereof |
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| CN114907042B (en) * | 2022-05-26 | 2023-04-04 | 福建工程学院 | Photocatalytic steel slag floating concrete and preparation method thereof |
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