CN113880545A - Preparation method of photocatalytic magnesium cementing material and product thereof - Google Patents
Preparation method of photocatalytic magnesium cementing material and product thereof Download PDFInfo
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- CN113880545A CN113880545A CN202010628534.4A CN202010628534A CN113880545A CN 113880545 A CN113880545 A CN 113880545A CN 202010628534 A CN202010628534 A CN 202010628534A CN 113880545 A CN113880545 A CN 113880545A
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- magnesium
- parts
- photocatalytic
- photocatalyst
- magnesian
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- 239000000463 material Substances 0.000 title claims abstract description 68
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 56
- 239000011777 magnesium Substances 0.000 title claims abstract description 56
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000011941 photocatalyst Substances 0.000 claims abstract description 41
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 23
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 20
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 15
- 239000004088 foaming agent Substances 0.000 claims abstract description 14
- 239000010451 perlite Substances 0.000 claims abstract description 14
- 235000019362 perlite Nutrition 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 28
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 18
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 14
- 235000012245 magnesium oxide Nutrition 0.000 claims description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 11
- -1 titanium dioxide-boron modified carbon nitride Chemical class 0.000 claims description 11
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical group [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000005187 foaming Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910002915 BiVO4 Inorganic materials 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 5
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 238000009960 carding Methods 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 7
- 230000018109 developmental process Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000033558 biomineral tissue development Effects 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012855 volatile organic compound Substances 0.000 description 11
- 238000005034 decoration Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 238000003905 indoor air pollution Methods 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000036541 health Effects 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000032839 leukemia Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000001089 mineralizing effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
- B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
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- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5062—Borides, Nitrides or Silicides
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
- C04B2111/00827—Photocatalysts
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2092—Resistance against biological degradation
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a photocatalytic magnesium cementing material and a product thereof, wherein the photocatalytic magnesium cementing material comprises the following components in parts by weight: 100 parts of magnesium oxide powder; 120-125 parts of a blending agent; 8-12 parts of a filler; 6-10 parts of natural fibers; 5-7 parts of perlite; 2.6-2.9 parts of titanium dioxide; 3-5 parts of a foaming agent; 0.5-32 parts of a photocatalyst. The magnesium cementing material is endowed with the functions of environmental purification and self-cleaning by adding the photocatalyst, so that the composite building material plate with new functions is realized, and the composite building material plate has very strong creativity. In addition, the preparation method of the photocatalytic magnesium cementing material is simple, the prepared photocatalytic magnesium cementing material has low energy consumption and thorough reaction, can realize complete mineralization of organic matters, has no secondary pollution, can be used for manufacturing floors, wallpaper and the like, has a very wide application range, and has very good development prospect and market value.
Description
Technical Field
The invention relates to a preparation method of a photocatalytic magnesium cementing material and a product thereof.
Background
With the improvement of the living standard of people's substances, various organic polymers are widely used in daily life, such as indoor decoration materials, electric appliances, daily chemicals and the like, so that the indoor air pollution is continuously aggravated. Air pollution is also increasing, and indoor air pollution and health become important environmental problems of public concern. Because the indoor environment is relatively closed, Volatile Organic Compounds (VOCs) slowly released from various materials accumulate and are slowly released in the room, resulting in an increased concentration of VOCs in the indoor air, which causes pollution of VOCs. Indoor VOCs mainly come from decorative material release, smoking, human activities, domestic fuel combustion, odor sources and outdoor atmospheric pollution. According to statistics, about more than 300 VOCs are detected in indoor ambient air at present, mainly comprising formaldehyde, benzene, toluene, xylene and the like, wherein most compounds are harmful to human bodies, and some compounds also have carcinogenic and teratogenic effects.
According to the indoor air pollution and health released by the world health organization, the degree of indoor air pollution is 5-10 times higher than that of outdoor air pollution at present. About 4% of diseases worldwide are related to indoor air quality, and about 200 million people die prematurely every year due to diseases caused by indoor air pollution. Nearly half of the world's population is in indoor air pollution, which has become one of the ten major threats to human health. Among the harmful substances detected in the living environment, formaldehyde is the most common, and the second is xylene, toluene and benzene. In the standard exceeding houses, the child houses are most common, and then the study houses and the main bed are used, and the standard exceeding rate of the living room and the dining room is the lowest, which is related to the high decoration density, the low ventilation and the high use frequency of the air conditioner of the child houses. In recent years, the environmental problems of home decoration are frequently mentioned in the news, and the incidents of hackers such as "formaldehyde being lost", "leukemia being acquired after 2 years of decoration", "leukemia 90% originating from home decoration" … … are continuously seen. Therefore, the development of healthy and environment-friendly building decoration materials with self-cleaning effect has important significance for human health and stable and continuous development of society.
The magnesium cementing material veneer has the characteristics of good fireproof performance, flexible use, no toxicity, no harm, light weight and the like, can meet the requirements of fast construction speed and fast survival of the prefabricated building, and is an ideal new-generation family decoration material. However, the main components of the magnesium cementing material are magnesium oxide, magnesium chloride, magnesium sulfate, magnesium phosphate and the like, and the magnesium cementing material does not have the capacity of purifying indoor air pollutants. Therefore, how to endow the magnesium cementing material with the functions of environmental purification and self-cleaning becomes the key for improving the economic value and the market competitiveness of the product.
Disclosure of Invention
Aiming at the existing problems, the invention provides a photocatalytic magnesium cementing material and a preparation method thereof, a photocatalytic technology is applied to the magnesium cementing material to endow the magnesium cementing material with the functions of environmental purification and self-cleaning, and the specific technical scheme is as follows:
firstly, the invention provides a photocatalytic magnesium cementing material which comprises the following components in parts by weight:
100 parts of magnesium oxide powder;
120-125 parts of a blending agent;
8-12 parts of a filler;
6-10 parts of natural fibers;
5-7 parts of perlite;
2.6-2.9 parts of titanium dioxide;
3-5 parts of a foaming agent;
0.5-32 parts of a photocatalyst.
Preferably, the blender is a magnesium sulfate solution or a magnesium chloride solution.
Preferably, the filler is alumina powder.
Preferably, the natural fiber is a plant fiber including bamboo fiber, hemp fiber, cotton fiber and coconut fiber.
Preferably, the foaming agent is an AC foaming liquid with the concentration of 10%.
Preferably, the photocatalyst is titanium dioxide-boron modified carbon nitride photocatalyst and phosphoric acid bridged composite TiO2-BiVO4A nano photocatalyst or a phosphoric acid functionalized carbon nano tube-titanium dioxide composite nano photocatalyst.
In the preparation method of the photocatalytic magnesium cementing material,
step S1: weighing magnesium oxide powder, a blending agent, a filler, natural fibers, perlite, titanium dioxide and a foaming agent according to the weight parts, mixing together in sequence and stirring to form magnesium gel slurry;
step S2: injecting the magnesium gelling slurry prepared in the step S1 into a mold, carding, laying non-woven fabrics on the surface of the slurry, and rolling to compact the slurry;
step S3: placing the magnesium gelling slurry injected into the mold in the step S2 into a curing room, and standing for gelling at the temperature of 35-37 ℃;
step S4: and (5) after the magnesium gel slurry in the step S3 is solidified and demoulded, uniformly spraying the photocatalyst on the surface of the magnesium gel slurry, and completely solidifying the photocatalyst to obtain the photocatalytic magnesium gel material.
Preferably, in step S1, the mixing in order is: firstly adding magnesia powder into water, then adding filler and titanium dioxide, stirring at a high speed for 10-20 min, then adding natural fiber, perlite and a blender, continuing stirring for 5-6 min, finally adding a foaming agent, and stirring at a low speed for 5-10 min to obtain the magnesium gel slurry.
As a preferred embodiment, the magnesium cement paste mixed in step S1 further includes a photocatalyst, which is added in an amount of one fifth to one third of the total amount, in the order of adding together with the foaming agent, and the rest is sprayed on the surface of the magnesium cement.
Correspondingly, the invention also provides a photocatalytic magnesium cementing material product, namely a product prepared by adopting the photocatalytic magnesium cementing material.
The principle of realizing the environmental purification and self-cleaning functions of the photocatalytic magnesium cementing material is as follows:
firstly, the added photocatalyst and the magnesium cementing material can adsorb and enrich Volatile Organic Compounds (VOCs), bacteria, viruses and the like which cause indoor air pollution; the photocatalytic material can absorb natural light, lamplight and the like with indoor wavelength larger than the forbidden bandwidth of the photocatalytic material, and then the natural light, the lamplight and the like are excited to generate photoproduction electrons with reduction capability and photoproduction holes with strong oxidation capability, and the photoproduction electrons and the photoproduction holes are respectively diffused to the surface of the photocatalytic material; then, the photo-generated electrons and holes respectively adsorb to the surface-adsorbed O2、H2O, VOCs etc. to produce a series of active oxygen species such as O2OH and the like, and further degrade VOCs to H2O and CO2Etc. to realize thorough mineralization and effective killing of viruses, microbes, etc., thereby realizing the functions of environmental purification and self-cleaning.
The invention has the beneficial effects that:
the photocatalytic magnesium cementing material of the invention endows the magnesium cementing material with the functions of environmental purification and self-cleaning by adding the photocatalyst, realizes the composite building material plate with new functions, and has very strong creativity.
The filler in the photocatalytic magnesium cementing material adopts alumina powder, so that the compactness, the cold and hot fatigue property, the fracture toughness and the wear resistance of the magnesium cementing material can be improved, the ultraviolet resistance of the magnesium cementing material can be improved, and the durability of a product of the magnesium cementing material can be improved; the photocatalyst is complementary with the newly added photocatalyst, and the product is ensured to be preserved for a long time under the illumination condition.
The photocatalytic magnesian cementing material added into the photocatalytic magnesian cementing material is TiO bridged and compounded by titanium dioxide-boron modified carbon nitride photocatalyst and phosphoric acid2-BiVO4Nano photocatalyst or phosphoric acid workAn functionalized carbon nanotube-titanium dioxide composite nano photocatalyst; after the titanium oxide-boron modified carbon nitride photocatalyst is modified, the specific surface area is increased, the utilization rate of visible light is high, and the titanium oxide-boron modified carbon nitride photocatalyst has good activity and stability; phosphoric acid bridged composite TiO2-BiVO4The nano photocatalyst prolongs the service life of high-energy electrons, improves the separation efficiency of photo-generated charges, is beneficial to photocatalytic decomposition, and has mild reaction conditions and excellent performance; the phosphoric acid functionalized carbon nanotube-titanium dioxide composite nano photocatalyst has higher separation and reaction efficiency of photon-generated carriers, and is a more ideal photocatalyst.
In addition, the preparation method of the photocatalytic magnesium cementing material is simple, and the photocatalyst can be directly sprayed on the surface of a formed material, and a mixing link can also be added, so that the purification performance of the prepared material is improved; the magnesia powder is firstly mixed with the filler and the titanium dioxide, and is stirred at a high speed, so that the dispersion is more uniform; then adding natural fiber and perlite to prevent the fiber from agglomerating in the long-term stirring process to influence the uniformity of the material; the added foaming agent can make the prepared photocatalytic magnesium cementing material light and porous, thereby achieving the purposes of heat insulation and sound absorption.
The photocatalytic magnesium cementing material has the characteristics of low energy consumption (natural light, indoor light and other energy can be effectively utilized), thorough reaction (complete mineralization of organic matters can be realized), no secondary pollution (no material consumption, no maintenance) and the like; the method can be used for manufacturing floors, wallpaper, counters, home decoration, furniture and the like, can also be used for other scenes needing to be purified, has a very wide application range, and has very good development prospect and market value.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Examples 1 to 3 are for preparing photocatalytic magnesian gelled materials, and example 4 is a comparative example.
Example 1
100 parts of magnesium oxide powder, 120 parts of magnesium sulfate solution, 12 parts of alumina powder, 6 parts of fibrilia, 5 parts of perlite, 2.6 parts of titanium dioxide, 3 parts of foaming agent and 12 parts of titanium dioxide-boron modified carbon nitride photocatalyst. Firstly adding magnesia powder into water, then adding alumina powder and titanium dioxide, stirring for 15min at a high speed of 2000rpm, then adding magnesium sulfate solution, fibrilia and perlite, continuing stirring for 5min, finally adding AC foaming liquid with the concentration of 10%, and stirring for 10min at a low speed of 600rpm to obtain the magnesian gelled slurry. Then the magnesian gelled slurry is injected into a mould, is combed to be flat, and is paved with non-woven fabrics on the surface of the slurry, and then is rolled to compact the slurry; then placing the mixture into a curing room, and standing the mixture for gelling at the temperature of between 35 and 37 ℃; after the titanium dioxide-boron modified carbon nitride photocatalyst is solidified and demoulded, the titanium dioxide-boron modified carbon nitride photocatalyst is uniformly sprayed on the surface of the titanium dioxide-boron modified carbon nitride photocatalyst, and after the titanium dioxide-boron modified carbon nitride photocatalyst is completely solidified, the photocatalytic magnesium cementing material is obtained.
Example 2
Taking 100 parts of magnesium oxide powder, 123 parts of magnesium chloride solution, 10 parts of alumina powder, 8 parts of bamboo fiber, 6 parts of perlite, 2.8 parts of titanium dioxide, 5 parts of 10% AC foaming liquid and phosphoric acid bridging composite TiO2-BiVO420 parts of nano photocatalyst. Firstly adding magnesia powder into water, then adding alumina powder and titanium dioxide, stirring at a high speed of 2000rpm for 10min, then adding magnesium chloride solution, bamboo fiber and perlite, continuing stirring for 6min, and finally adding 10% AC foaming liquid and 5 parts of phosphoric acid bridging composite TiO2-BiVO4And stirring the nano photocatalyst at the low speed of 600rpm for 8min to obtain the magnesium gel slurry. Then the magnesian gelled slurry is injected into a mould, is combed to be flat, and is paved with non-woven fabrics on the surface of the slurry, and then is rolled to compact the slurry; then placing the mixture into a curing room, and standing the mixture for gelling at the temperature of between 35 and 37 ℃; after the material is solidified and demoulded, the rest 15 parts of titanium dioxide-boron modified carbon nitride photocatalyst is evenly sprayed on the surface of the material, and after the material is completely solidified, the photocatalytic magnesium cementing material is obtained.
Example 3
100 parts of magnesium oxide powder, 125 parts of magnesium chloride solution, 8 parts of alumina powder, 10 parts of coconut fiber, 7 parts of perlite, 2.9 parts of titanium dioxide, 4 parts of 10% AC foaming liquid and 32 parts of phosphoric acid functionalized carbon nano tube-titanium dioxide composite nano photocatalyst. Firstly adding magnesia powder into water, then adding alumina powder and titanium dioxide, stirring at a high speed of 2000rpm for 20min, then adding magnesium chloride solution, bamboo fiber and perlite, continuing stirring for 5min, finally adding AC foaming liquid with the concentration of 10%, and stirring at a low speed of 600rpm for 5min to obtain the magnesium gel slurry. Then the magnesian gelled slurry is injected into a mould, is combed to be flat, and is paved with non-woven fabrics on the surface of the slurry, and then is rolled to compact the slurry; then placing the mixture into a curing room, and standing the mixture for gelling at the temperature of between 35 and 37 ℃; after the material is solidified and demoulded, the phosphoric acid functionalized carbon nano tube-titanium dioxide composite nano photocatalyst is evenly sprayed on the surface of the material, and after the material is completely solidified, the photocatalytic magnesium cementing material is obtained.
Example 4 comparative example
The photocatalytic magnesium cementing materials prepared in the examples 1-3 are compared with the service performance of the decorative plate in the current market, and the results are shown in the table 1.
TABLE 1 comparison of photocatalytic magnesian cement with the performance of decorative panels on the market
As can be seen from the above table, the photocatalytic magnesium cementitious material provided by the invention has the performance in the aspects of requirements of building and home decoration materials, and has a very wide application range. The size of the product prepared by the material can be cut, sawed and assembled according to the construction requirement; the material embodies low carbon and environmental protection, has the fire-proof grade reaching A grade, has the anti-seismic performance, and is safe and reliable.
In addition, the material product has long service life and corrosion resistance, can be operated by a dry method in field construction, is low-carbon and energy-saving in the whole construction process, can reduce 90 percent of wood consumption, 90 percent of construction waste, 90 percent of construction water and 35 percent of construction electricity, shortens 70 percent of construction period and saves 50 percent of field labor cost. In addition, the material has the advantages of low cost of raw materials, good stability, strong controllability, capability of effectively degrading indoor volatile organic compounds by effectively utilizing energy such as natural light, indoor light and the like, capability of completely mineralizing the organic compounds without secondary pollution, wide application range, very good development prospect and very good market value.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Furthermore, it should be understood that although the present specification describes embodiments, this does not include only one embodiment, and such description is for clarity only, and those skilled in the art should be able to make the specification as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. A photocatalytic magnesium cementing material is characterized in that: the components of the composition by weight portion are as follows:
100 parts of magnesium oxide powder;
120-125 parts of a blending agent;
8-12 parts of a filler;
6-10 parts of natural fibers;
5-7 parts of perlite;
2.6-2.9 parts of titanium dioxide;
3-5 parts of a foaming agent;
0.5-32 parts of a photocatalyst.
2. The photocatalytic magnesian cement according to claim 1, characterized in that: the blender is magnesium sulfate solution or magnesium chloride solution.
3. The photocatalytic magnesian cement according to claim 1, characterized in that: the filler is alumina powder.
4. The photocatalytic magnesian cement according to claim 1, characterized in that: the natural fiber is plant fiber including bamboo fiber, hemp fiber, cotton fiber, and coconut fiber.
5. The photocatalytic magnesian cement according to claim 1, characterized in that: the foaming agent is AC foaming liquid, and the concentration of the foaming agent is 10%.
6. The photocatalytic magnesian cement according to claim 1, characterized in that: the photocatalyst is TiO compounded by titanium dioxide-boron modified carbon nitride photocatalyst and phosphoric acid bridging2-BiVO4A nano photocatalyst or a phosphoric acid functionalized carbon nano tube-titanium dioxide composite nano photocatalyst.
7. A method for preparing the photocatalytic magnesian cementing material according to any one of claims 1 to 6, which is characterized by comprising the following steps:
step S1: weighing magnesium oxide powder, a blending agent, a filler, natural fibers, perlite, titanium dioxide and a foaming agent according to the weight parts, mixing together in sequence and stirring to form magnesium gel slurry;
step S2: injecting the magnesium gelling slurry prepared in the step S1 into a mold, carding, laying non-woven fabrics on the surface of the slurry, and rolling to compact the slurry;
step S3: placing the magnesium gelling slurry injected into the mold in the step S2 into a curing room, and standing for gelling at the temperature of 35-37 ℃;
step S4: and (5) after the magnesium gel slurry in the step S3 is solidified and demoulded, uniformly spraying the photocatalyst on the surface of the magnesium gel slurry, and completely solidifying the photocatalyst to obtain the photocatalytic magnesium gel material.
8. The method for preparing the photocatalytic magnesian cementing material according to the claim 7, characterized in that: in step S1, the mixing in order is: firstly adding magnesia powder into water, then adding filler and titanium dioxide, stirring at a high speed for 10-20 min, then adding natural fiber, perlite and a blender, continuing stirring for 5-6 min, finally adding a foaming agent, and stirring at a low speed for 5-10 min to obtain the magnesium gel slurry.
9. The method for preparing a photocatalytic magnesian cement according to claim 7 or 8, wherein: the magnesium cement paste mixed in step S1 further includes a photocatalyst added in an amount of one fifth to one third of the total amount in the order of addition together with the foaming agent, and the remaining part is sprayed on the surface of the magnesium cement.
10. A photocatalytic magnesian cementitious material product, comprising: an article made using the photocatalytic magnesian gelling material according to any of claims 1 to 6.
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