CN107744835B - A kind of preparation method of sodium bismuthate base visible light catalytic paper material - Google Patents
A kind of preparation method of sodium bismuthate base visible light catalytic paper material Download PDFInfo
- Publication number
- CN107744835B CN107744835B CN201710947869.0A CN201710947869A CN107744835B CN 107744835 B CN107744835 B CN 107744835B CN 201710947869 A CN201710947869 A CN 201710947869A CN 107744835 B CN107744835 B CN 107744835B
- Authority
- CN
- China
- Prior art keywords
- sodium
- visible light
- sodium bismuthate
- preparation
- paper material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- PNYYBUOBTVHFDN-UHFFFAOYSA-N sodium bismuthate Chemical compound [Na+].[O-][Bi](=O)=O PNYYBUOBTVHFDN-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 58
- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 229910052797 bismuth Inorganic materials 0.000 claims description 27
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 27
- 229910001868 water Inorganic materials 0.000 claims description 24
- 239000006185 dispersion Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 229940049676 bismuth hydroxide Drugs 0.000 claims description 12
- TZSXPYWRDWEXHG-UHFFFAOYSA-K bismuth;trihydroxide Chemical compound [OH-].[OH-].[OH-].[Bi+3] TZSXPYWRDWEXHG-UHFFFAOYSA-K 0.000 claims description 12
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 11
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 11
- 241000196324 Embryophyta Species 0.000 claims description 10
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 6
- 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 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 241001343274 Dichrostachys spicata Species 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000005457 ice water Substances 0.000 claims description 4
- 238000005360 mashing Methods 0.000 claims description 4
- 238000013517 stratification Methods 0.000 claims description 4
- 239000012085 test solution Substances 0.000 claims description 4
- 238000010009 beating Methods 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000001934 delay Effects 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 24
- 238000006731 degradation reaction Methods 0.000 abstract description 24
- 239000003054 catalyst Substances 0.000 abstract description 22
- 238000010521 absorption reaction Methods 0.000 abstract description 19
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 12
- 239000002105 nanoparticle Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 21
- KIWUVOGUEXMXSV-UHFFFAOYSA-N rhodanine Chemical compound O=C1CSC(=S)N1 KIWUVOGUEXMXSV-UHFFFAOYSA-N 0.000 description 17
- 238000007146 photocatalysis Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 230000001699 photocatalysis Effects 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 238000001179 sorption measurement Methods 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- -1 fluoride ions Chemical class 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UFFBMTHBGFGIHF-UHFFFAOYSA-N 2,6-dimethylaniline Chemical compound CC1=CC=CC(C)=C1N UFFBMTHBGFGIHF-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 150000001621 bismuth Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 238000006385 ozonation reaction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- CQPFMGBJSMSXLP-UHFFFAOYSA-M acid orange 7 Chemical compound [Na+].OC1=CC=C2C=CC=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 CQPFMGBJSMSXLP-UHFFFAOYSA-M 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- XCSGPAVHZFQHGE-UHFFFAOYSA-N alachlor Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl XCSGPAVHZFQHGE-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002351 wastewater Substances 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
-
- 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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/36—Organic compounds containing halogen
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
The present invention provides a kind of preparation methods of sodium bismuthate base visible light catalytic paper material material.The method carries out as follows: 1, the preparation of sodium bismuthate；2, the preparation of plant fiber suspension；3, the preparation of sodium bismuthate base visible light catalytic paper material.The present invention selects the photochemical catalyst sodium bismuthate with visible light catalytic performance for basic catalyst, and it is supported on plant fiber, plant fiber is good catalyst carrier first, it can avoid the reunion of sodium bismuthate nano particle, to guarantee absorption and catalytic activity, this method simple process, it is easy to operate, efficient degradation and mineralising to organic pollutant can be preferably realized using the strong absorption of the catalyst and catalytic performance.
Description
Technical field
The present invention relates to the technical fields of sewage treatment, are related specifically to a kind of sodium bismuthate base visible light catalytic paper material
Preparation method.
Background technique
China is the country that water resource lacks, and water resource pollution is more serious, so that Proposals of Water Resources is more severe
Situation.In industrial wastewater, organic pollutant is main pollution sources, and the influence to water body environment is very big, so, to industry
Organic pollutant in waste water carries out advanced treating to realize qualified discharge, in addition can reuse be current extremely urgent appoint
Business.
With the continuous development of water treatment technology, it has been found that can be effective using oxidant, electricity, illumination, catalyst etc.
Activate H2O2And O2Equal Green Oxidants, to generate the extremely strong free radical of activity in the reaction.These free radicals and organic contamination
When object acts on, larger molecular organics difficult to degrade can be made to aoxidize by the effects of adduction, substitution, electronics transfer, scission of link, open loop
It is degraded into low toxicity or nontoxic small molecule, or even is directly decomposed into CO2And H2O achievees the purpose that harmless treatment, this
It is exactly high-level oxidation technology.High-level oxidation technology mainly include Fenton or class Fenon oxidation technology (Masomboon N,
Ratanatamskul C,Lu M C.Chemical oxidation of 2,6-dimethylaniline in the
Fenton process.Environ.Sci.Technol.2009,43:8269-8634；Feng J Y,Hu X J,Yue P
L.Discoloration and mineralization of orange II using different heterogeneous
catalysts containing Fe:a comparative study.Environ.Sci.Technol.2004,38:5773-
5778.), photocatalysis oxidation technique (Linsebigler A, Lu G, Yates J.Photocatalysis on
TiO2surface:principles,mechanisms,and selected results.Chem.Rev.1995,95:735-
758；Wang N,Chen Z F,Zhu L,et al.Synergistic effects of cupric and fluoride
ions on photocatalytic degradation of phenol.J.Photochem.Photobiol.A:
Chem.2007,191:193-200.), ultrasonic radiation oxidation technology (Chowdhury P, Viraraghavan
T.Sonochemical degradation of chlorinated organic compounds,phenolic
Compounds and organic dyes-A review.Sci.Total Environ.2009,407:2474-2492.) and
Ozonation technology (Qiang Z M, Liu C, Dong B Z, et al.Degradation mechanism of alachlor
during direct ozonation and O3/H2O2advanced oxidation process.Chemosphere
2010,78:517-526) etc..
Photocatalysis technology has the advantages that mild condition and processing cost are low etc. in high-level oxidation technology, mainly utilizes
Ultraviolet light or visible light catalytic generate light induced electron and hole, are degraded using the reduction in light induced electron or hole or oxidation dirty
Object is contaminated, but inefficient problem is still had when handling more stable pollutant using photocatalysis method.In addition, being urged in light
Ultraviolet portion (4%) of the ultraviolet catalytic due to that can only utilize proportion very little in the sun in change technology, this is in certain journey
Its application in practice is limited on degree.In order to further increase the effect of photocatalysis treatment pollutant, people will be to light
Using the biggish visible light part of proportion in sunlight (accounting for about 43% or so) is expanded to, it is different types of sending is not turned off
Visible light catalyst.Therefore how to develop with the photochemical catalyst compared with high visible catalytic performance is that photocatalysis technology field is important
Developing direction.Researcher is first to TiO2It is modified to improve its visible light catalysis activity, specific method of modifying includes member
Element doping (Liu Shuzhi, Liu Xianjun, Xu Shengli, etc. raising TiO2The progress application of visible photocatalysis water hydrogen production activity
Work, 2008,37 (12): 1491-1495.), semiconductor coupling (Smith Y R, Raj K J A, Subramanian V, et
al.Sulfated Fe2O3-TiO2synthesized from ilmenite ore:A visible light active
photocatalys.Colloids and Surfaces A:Physicochem.Eng.Aspects 2010,367(1-3):
140-147), surface sensitizing and compound etc. with carbonaceous material.Although to TiO2Be modified can improve it to a certain degree can
Light-exposed catalytic performance, but modified TiO2Photocatalysis efficiency do not obtained yet with activity and chemical stability etc. it is biggish
It improves and breaks through.Therefore, people, which do not turn off, issues new visible light catalyst, these visible light catalysts have suitable energy band
Structure, stronger visible light-responded and catalytic activity.Specifically include the relatively simple narrowband photochemical catalyst of structure (Zhang Z,
Hossain M,Takahashi T.Self-assembled hematite(a-Fe2O3)nanotube arrays for
photoelectrocatalytic degradation of azo dye under simulated solar light
irradiation.Appl.Catal.B:Environ.2010,95(3-4):423-429；Gu Y,Su X,Du Y,et
al.Preparation of flower-like Cu2O nanoparticles by pulse electrodeposition
and their electrocatalytic application.Appl.Surf.Sci.2010,256(20):5862-
5866.).Other than the visible light catalyst of above-mentioned several types, people study the compound oxide photocatalyst of discovery bismuth-containing
With preferable catalytic performance and application prospect.Such catalyst have unique electronic structure, it is excellent visible light-responded and
Catalytic capability, so as to cause the extensive concern of researcher.Bismuth series catalysts mainly include the following categories: the simple oxide of bismuth and
The binary metal oxide and other bismuth-containing compounds of sulfide, bismuth.Sodium bismuthate is due to stronger in bismuth series catalysts
Visible light catalytic performance and oxidation susceptibility and be concerned.Therefore, as based on how sodium bismuthate, development has stronger adsorptivity
There can be stronger science and using valence to handle high concentration organic contaminant with the composite catalyst of visible light catalytic performance
Value.
Summary of the invention:
The purpose of the present invention is to provide a kind of preparation methods of sodium bismuthate base visible light catalytic paper material.
Design philosophy of the invention are as follows: select to urge based on the photochemical catalyst sodium bismuthate with visible light catalytic performance first
Agent, and be supported on plant fiber, plant fiber is good catalyst carrier first, can avoid sodium bismuthate nanometer
The reunion of grain, to guarantee absorption and catalytic activity；In addition, itself unique porous structure facilitates to organic contamination produce
Raw stronger absorption, in addition huge specific surface area itself, strong to adsorb necessarily to organic pollutant absorption property with super strength
Good catalytic degradation effect can be generated, is finally realized using the strong absorption of the catalyst and catalytic performance to organic pollutant
Efficient degradation and mineralising (as shown in Figure 1).
To achieve the above object, the technical solution of the present invention is as follows:
A kind of preparation method of sodium bismuthate base visible light catalytic paper material material.The method carries out as follows:
1, the preparation of sodium bismuthate: preparing sodium hypochlorite first, and the sodium hydroxide for weighing 10-20g is dissolved in the water, and uses ice water
It is cooled to 10 DEG C and reaches saturation hereinafter, being passed through chlorine under stiring, then add the sodium hydroxide of 10-15g, control temperature exists
10 DEG C -20 DEG C, the crystal of precipitation is separated and is filtered, sodium hypochlorite is obtained；Using bismuth nitrate or bismuth hydroxide as bismuth source, stirring strongly
Mix it is lower it is repeatedly added in sodium hypochlorite test solution on a small quantity, 20~30 DEG C of temperature control, react 60-80 minutes, obtain the bismuth of yellow
Sour sodium precipitating elutes its stratification with 1% sodium hydroxide, again dry 24-30 hour must in vacuum oven after filtering
To bismuthic acid sodium sample；
2, the preparation of plant fiber suspension: weighing 300-400g needlebush pulpboard, is impregnated 30-40 minutes with 8-10L water,
And it is shredded into the small lodicule of 3cm × 3cm, 10-12L water is then added into trough-style pulp beater stock tank, opens beater, slowly adds
Enter above-mentioned small lodicule to be beaten, reaches 40-60 in beating degreeoStop mashing when SR, takes out slurry and extract moisture, be placed in sealing
Equilibrium water conten in bag finally measures paper pulp moisture；
3, the preparation of sodium bismuthate base visible light catalytic paper material: the paper pulp of 2-6g is taken to be add to deionized water, at stirring
Its dispersion liquid is obtained after reason, and the sodium bismuthate of 0.8-14g, the cation polypropylene of 0.2-0.6g are then added into gained dispersion liquid
The Lauxite of acyl and 0.2-0.6g stirs to get well dispersed dispersion liquid, then by obtained dispersion liquid using quickly triumphant
It fills in the method for forming and carries out handsheet, be dried to obtain sodium bismuthate base visible light catalytic paper material.
The preparation of the sodium bismuthate base visible light catalytic paper is prepared using the quick kayser method of forming.
The above method is used as using cationic polyacrylamide and is helped when preparing composite material using the quick kayser method of forming
Agent is stayed, using UF as wet strength agent, makes sodium bismuthate stable presence of energy in catalysis paper material.
Compared with prior art, the positive effect of the present invention are as follows:
1, the present invention selects the photochemical catalyst sodium bismuthate with visible light catalytic performance for basic catalyst, and is loaded
On plant fiber, plant fiber is good catalyst carrier first, can avoid the reunion of sodium bismuthate nano particle, to protect
Card absorption and catalytic activity；
2, the selected unique porous structure of plant fiber of the present invention itself helps to generate organic pollutant stronger
Absorption, in addition huge specific surface area itself, necessarily to organic pollutant absorption property with super strength, strong absorption can be generated
Good catalytic degradation effect；
3, this method simple process, it is easy to operate, it can preferably be realized using the strong absorption of the catalyst and catalytic performance
To the efficient degradation and mineralising of organic pollutant.
Detailed description of the invention
The composition principle figure of Fig. 1, sodium bismuthate base visible light catalytic paper material；
The external macro morphology figure of Fig. 2, sodium bismuthate base visible light catalytic paper material；
The content (using bismuth nitrate as bismuth source) of sodium bismuthate is to rhodanine B's in Fig. 3, sodium bismuthate base visible light catalytic paper material
Adsorbance variation diagram (the content of sodium bismuthate: (1) 30%, (2) 40%, (3) 50%, (4) 60%, (5) 70%；Adsorption conditions: pH
6, temperature: 25 DEG C)；
The content (using bismuth nitrate as bismuth source) of sodium bismuthate is to rhodanine B's in Fig. 4, sodium bismuthate base visible light catalytic paper material
Degradation kinetics figure (the content of sodium bismuthate: (1) 30%, (2) 40%, (3) 50%, (4) 60%, (5) 70%；PH 6, temperature:
25℃)；
The content (using bismuth hydroxide as bismuth source) of sodium bismuthate is to rhodanine B in Fig. 5, sodium bismuthate base visible light catalytic paper material
The adsorbance variation diagram (content of sodium bismuthate: (1) 30%, (2) 40%, (3) 50%, (4) 60%, (5) 70%；Adsorption conditions:
PH 6, temperature: 25 DEG C)；
The content (using bismuth hydroxide as bismuth source) of sodium bismuthate is to rhodanine B in Fig. 6, sodium bismuthate base visible light catalytic paper material
The degradation kinetics figure (content of sodium bismuthate: (1) 30%, (2) 40%, (3) 50%, (4) 60%, (5) 70%；PH 6, temperature
Degree: 25 DEG C).
Specific embodiment
Clear, complete description further is carried out to technical solution of the present invention below by embodiment.
The specific implementation process point of sodium bismuthate base visible light catalytic paper material is prepared using technical solutions according to the invention
For preparation three main steps of the preparation of sodium bismuthate, the preparation of plant fiber suspension and sodium bismuthate photocatalysis paper composite material
Suddenly, and according to prepared material to the absorption of rhodanine B and degradation effect preparation process is adjusted accordingly.
Embodiment one:
Sodium bismuthate photocatalysis paper composite material is prepared by bismuth source of bismuth nitrate
1, the preparation of sodium bismuthate
Prepare sodium hypochlorite first, the sodium hydroxide for weighing 10-20g is dissolved in the water, with ice water be cooled to 10 DEG C hereinafter,
It is passed through chlorine under stiring, reaches saturation, then adds the sodium hydroxide of 10-15g, controls temperature at 10 DEG C -20 DEG C, will analyse
Crystal out, which separates, to be filtered, and sodium hypochlorite is obtained, and using bismuth nitrate as bismuth source, is under vigorous stirring repeatedly added to it on a small quantity secondary
It in sodium chlorate test solution, 20~30 DEG C of temperature control, reacts 60-80 minutes, the sodium bismuthate precipitating for obtaining yellow uses its stratification
After 1% sodium hydroxide elution, bismuthic acid sodium sample is obtained within dry 24-30 hours in vacuum oven again after filtering.
2, the preparation of plant fiber suspension
300-400g needlebush pulpboard is weighed, is impregnated 30-40 minutes with 8-10L water, and be shredded into the small slurry of 3cm × 3cm
Piece；Then 10-12L water is added into trough-style pulp beater stock tank, opens beater, is slowly added to above-mentioned small lodicule and is beaten；
Stop mashing when beating degree reaches 40-60oSR, takes out slurry and extract moisture, be placed in equilibrium water conten in hermetic bag, finally measure
Paper pulp moisture.
3, sodium bismuthate base visible light catalytic paper material is prepared by bismuth source of bismuth nitrate
It takes the paper pulp of 2-6g to be add to deionized water, its dispersion liquid is obtained after stir process, then to resulting dispersion
Sodium bismuthate, the cation polypropylene acyl of 0.2-0.6g and the Lauxite of 0.2-0.6g of 0.8-14g are added in liquid, stirs to get
Obtained dispersion liquid is carried out handsheet using the quick kayser method of forming, is dried to obtain sodium bismuthate paper base by well dispersed dispersion liquid
Composite material (its exterior appearance is as shown in Figure 2).
4, sodium bismuthate base (bismuth nitrate is bismuth source) visible light catalytic paper material comments the absorption of organic pollutant (rhodanine B)
Valence:
Be absorption object with rhodanine B, research sodium bismuthate base visible light catalytic paper material to its adsorption effect, and according to
The effect of absorption is adjusted correspondingly the preparation process of sodium bismuthate base visible light catalytic paper material (specific to adsorb situation such as
Shown in Fig. 3).
5, sodium bismuthate base (bismuth nitrate is bismuth source) visible light catalytic paper material comments the degradation of organic pollutant (rhodanine B)
Valence:
It is degradation object with rhodanine B, research sodium bismuthate base (bismuth nitrate is bismuth source) visible light catalytic paper material is to it
Degradation effect, and according to the effect of degradation, to the preparation process of sodium bismuthate base (bismuth nitrate is bismuth source) visible light catalytic paper material
It is adjusted correspondingly (specific degradation situation is as shown in Figure 4).
Embodiment two:
Sodium bismuthate base visible light catalytic paper material is prepared by bismuth source of bismuth hydroxide
1, the preparation of sodium bismuthate
Prepare sodium hypochlorite first, the sodium hydroxide for weighing 10-20g is dissolved in the water, with ice water be cooled to 10 DEG C hereinafter,
It is passed through chlorine under stiring, reaches saturation, then adds the sodium hydroxide of 10-15g, controls temperature at 10 DEG C -20 DEG C, will analyse
Crystal out, which separates, to be filtered, and is obtained sodium hypochlorite, using bismuth hydroxide as bismuth source, is under vigorous stirring repeatedly added to it on a small quantity
In sodium hypochlorite test solution, 20~30 DEG C of temperature control, reacting 60-80 minute, the sodium bismuthate for obtaining yellow precipitates, by its stratification,
After 1% sodium hydroxide elution, bismuthic acid sodium sample is obtained within dry 24-30 hours in vacuum oven again after filtering.
2, the preparation of plant fiber suspension
300-400g needlebush pulpboard is weighed, impregnates 30min with 8-10L water, and be shredded into the small lodicule of 3cm × 3cm；It connects
Into trough-style pulp beater stock tank be added 10-12L water, open beater, be slowly added to above-mentioned small lodicule and be beaten；It is being beaten
Degree stops mashing when reaching 40-60oSR, takes out slurry and extracts moisture, is placed in equilibrium water conten in hermetic bag, finally measures pulp-water
Point.
3, sodium bismuthate base visible light catalytic paper material is prepared by bismuth source of bismuth hydroxide
It takes the paper pulp of 2-6g to be add to deionized water, its dispersion liquid is obtained after stir process, then to gained dispersion liquid
Middle sodium bismuthate, the cation polypropylene acyl of 0.2-0.6g and the Lauxite of 0.2-0.6g that 0.8-14g is added, stirs to get point
Good dispersion liquid is dissipated, obtained dispersion liquid is then subjected to handsheet using the quick kayser method of forming, is dried to obtain sodium bismuthate paper
Based composites.
4, sodium bismuthate base (bismuth hydroxide is bismuth source) absorption of the visible light catalytic paper material to organic pollutant (rhodanine B)
Evaluation:
Be absorption object with rhodanine B, research sodium bismuthate base visible light catalytic paper material to its adsorption effect, and according to
The effect of absorption is adjusted correspondingly the preparation process of sodium bismuthate base visible light catalytic paper material (specific to adsorb situation such as
Shown in Fig. 5).
5, sodium bismuthate base (bismuth hydroxide is bismuth source) degradation of the visible light catalytic paper material to organic pollutant (rhodanine B)
Evaluation:
It is degradation object with rhodanine B, research sodium bismuthate base (bismuth hydroxide is bismuth source) visible light catalytic paper material is to it
Degradation effect, and the preparation according to the effect of degradation, to sodium bismuthate base (bismuth hydroxide is bismuth source) visible light catalytic paper material
Technique is adjusted correspondingly (specific degradation situation is as shown in Figure 6).
Example detection result
1, the absorption when the content of sodium bismuthate is 50% of sodium bismuthate visible light catalytic paper material is prepared by bismuth source of bismuth nitrate
Effect is best, and the adsorbance to rhodanine B is 139.37mg/g or so；When the content of sodium bismuthate is 50%, the visible light is urged
Change paper material it is best to the degradation effect of rhodanine B after adsorption equilibrium, degradation rate be 84% or so (reaction 20 hours it
Afterwards).
2, sodium bismuthate base visible light catalytic paper material is prepared by bismuth source of bismuth hydroxide when the content of sodium bismuthate is 50%
Adsorption effect is best, and the adsorbance to rhodanine B is 98.57mg/g or so；When the content of sodium bismuthate is 50%, this is visible
Photocatalysis paper material is best to the degradation effect of rhodanine B after adsorption equilibrium, and degradation rate (it is small to react 25 for 85% or so
When after).
All features disclosed in this specification or disclosed all methods, step and volume, in addition to mutually exclusive spy
Other than sign and/or step, volume, it can combine in any way.Disclosed in this specification (including claim, abstract)
Any feature can be replaced by other alternative features that are equivalent or have similar purpose unless specifically stated.It is i.e. unless special
It does not describe, each feature is an example in a series of equivalent or similar characteristics.
Described above is only the non-limiting embodiment of invention, a large amount of embodiment can also be derived, for this field
Those of ordinary skill for, not departing from the invention design and under the premise of do not make creative work, can also do
The embodiment of several modifications and improvements out, these are all within the scope of protection of the present invention.
Claims (2)
1. a kind of preparation method of sodium bismuthate base visible light catalytic paper material,
It is characterized by: the method carries out as follows:
(1) preparation of sodium bismuthate: preparing sodium hypochlorite first, and the sodium hydroxide for weighing 10-20 g is dissolved in the water, and uses ice water
It is cooled to 10 DEG C and reaches saturation hereinafter, being passed through chlorine under stiring, then add the sodium hydroxide of 10-15 g, control temperature
At 10 DEG C -20 DEG C, the crystal of precipitation is separated and is filtered, sodium hypochlorite is obtained；Using bismuth nitrate or bismuth hydroxide as bismuth source, strong
It is repeatedly added in sodium hypochlorite test solution under stirring, 20-30 DEG C of temperature control on a small quantity, reacts 60-80 minutes, obtain yellow
Sodium bismuthate precipitating elutes its stratification with 1% sodium hydroxide, 24-30 hours dry in vacuum oven again after filtering
Obtain bismuthic acid sodium sample；
(2) preparation of plant fiber suspension: weighing 300-400 g needlebush pulpboard, is impregnated 30-40 minutes with 8-10 L water,
And it is shredded into the small lodicule of the cm of 3 cm × 3,10-12 L water is then added into trough-style pulp beater stock tank, opens beater, delays
Slowly above-mentioned small lodicule is added to be beaten, reaches 40-60 in beating degreeoStop mashing when SR, takes out slurry and extract moisture, set
The equilibrium water conten in hermetic bag finally measures paper pulp moisture；
(3) preparation of sodium bismuthate base visible light catalytic paper material: the paper pulp of 2-6 g is taken to be add to deionized water, stir process
After obtain its dispersion liquid, the cation poly- third of the sodium bismuthate of 0.8-14 g, 0.2-0.6 g are then added into gained dispersion liquid
The Lauxite of alkene acyl and 0.2-0.6 g stirs to get well dispersed dispersion liquid, then by obtained dispersion liquid using quick
The kayser method of forming carries out handsheet, is dried to obtain sodium bismuthate base visible light catalytic paper material.
2. the preparation method of sodium bismuthate base visible light catalytic paper material according to claim 1, it is characterised in that: using
When the quick kayser method of forming prepares composite material, using cationic polyacrylamide as retention agent, using UF as wet strength agent,
It is stabilized sodium bismuthate in catalysis paper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947869.0A CN107744835B (en) | 2017-10-12 | 2017-10-12 | A kind of preparation method of sodium bismuthate base visible light catalytic paper material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947869.0A CN107744835B (en) | 2017-10-12 | 2017-10-12 | A kind of preparation method of sodium bismuthate base visible light catalytic paper material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107744835A CN107744835A (en) | 2018-03-02 |
| CN107744835B true CN107744835B (en) | 2019-11-15 |
Family
ID=61252652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710947869.0A Expired - Fee Related CN107744835B (en) | 2017-10-12 | 2017-10-12 | A kind of preparation method of sodium bismuthate base visible light catalytic paper material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107744835B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940196A (en) * | 2018-06-28 | 2018-12-07 | 湖北工业大学 | A kind of preparation method of activated carbon fiber-loaded sodium bismuthate adsoption catalysis material |
| CN111495364B (en) * | 2020-05-14 | 2023-02-21 | 陕西科技大学 | Catalyst with dark photocatalytic activity and preparation method and application thereof |
| CN111701583A (en) * | 2020-07-27 | 2020-09-25 | 齐鲁理工学院 | Ultrathin hexagonal BiO2-x platelet photocatalyst and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203360046U (en) * | 2013-07-17 | 2013-12-25 | 上海市环境科学研究院 | Visible light catalytic degradation reactor based on glass fiber load sodium bismuthate |
| CN103623805A (en) * | 2013-07-17 | 2014-03-12 | 上海市环境科学研究院 | Active carbon fiber-loaded NaBiO3-based composite oxide and preparation method thereof, and method for degrading organic dye waste water by using composite oxide |
| CN103623868A (en) * | 2013-07-17 | 2014-03-12 | 上海市环境科学研究院 | Sodium bismuthate/epoxy resin/glass fiber composite material, preparation method thereof, and application method for composite material in degradation of organic waste water |
| CN106179171A (en) * | 2016-08-08 | 2016-12-07 | 湖北工业大学 | Difunctional porous material of efficient absorption xylogen degradation and preparation method thereof |
| CN106362754A (en) * | 2016-08-08 | 2017-02-01 | 湖北工业大学 | Iron sodium bismuthate-graphene visible-light-driven Fenton-like composite catalyst used for removing nonyl phenol and preparation method thereof |
-
2017
- 2017-10-12 CN CN201710947869.0A patent/CN107744835B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203360046U (en) * | 2013-07-17 | 2013-12-25 | 上海市环境科学研究院 | Visible light catalytic degradation reactor based on glass fiber load sodium bismuthate |
| CN103623805A (en) * | 2013-07-17 | 2014-03-12 | 上海市环境科学研究院 | Active carbon fiber-loaded NaBiO3-based composite oxide and preparation method thereof, and method for degrading organic dye waste water by using composite oxide |
| CN103623868A (en) * | 2013-07-17 | 2014-03-12 | 上海市环境科学研究院 | Sodium bismuthate/epoxy resin/glass fiber composite material, preparation method thereof, and application method for composite material in degradation of organic waste water |
| CN106179171A (en) * | 2016-08-08 | 2016-12-07 | 湖北工业大学 | Difunctional porous material of efficient absorption xylogen degradation and preparation method thereof |
| CN106362754A (en) * | 2016-08-08 | 2017-02-01 | 湖北工业大学 | Iron sodium bismuthate-graphene visible-light-driven Fenton-like composite catalyst used for removing nonyl phenol and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107744835A (en) | 2018-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jiang et al. | Photocatalytic degradation of xanthate in flotation plant tailings by TiO2/graphene nanocomposites | |
| Emam et al. | Recyclable photocatalyst composites based on Ag 3 VO 4 and Ag 2 WO 4@ MOF@ cotton for effective discoloration of dye in visible light | |
| Wang et al. | 0D/2D/2D ZnFe2O4/Bi2O2CO3/BiOBr double Z-scheme heterojunctions for the removal of tetracycline antibiotics by permonosulfate activation: Photocatalytic and non-photocatalytic mechanisms, radical and non-radical pathways | |
| Guo et al. | Highly efficient visible-light-driven photo-Fenton catalytic performance over FeOOH/Bi2WO6 composite for organic pollutant degradation | |
| Wang et al. | Hollow spherical WO3/TiO2 heterojunction for enhancing photocatalytic performance in visible-light | |
| Han et al. | Tailored titanium dioxide photocatalysts for the degradation of organic dyes in wastewater treatment: a review | |
| Yentür et al. | Synthesis of Visible-Light heterostructured photocatalyst of Ag/AgCl deposited on (0 4 0) facet of monoclinic BiVO4 for efficient carbamazepine photocatalytic removal | |
| Li et al. | Photocatalytic reduction of Cr (VI) on nano-sized red phosphorus under visible light irradiation | |
| Pandey et al. | Recent advancement in visible‐light‐responsive photocatalysts in heterogeneous photocatalytic water treatment technology | |
| Shet et al. | Photocatalytic degradation of phenol using Ag core-TiO 2 shell (Ag@ TiO 2) nanoparticles under UV light irradiation | |
| CN107744835B (en) | A kind of preparation method of sodium bismuthate base visible light catalytic paper material | |
| Selvaraj et al. | Photocatalytic degradation of triazine dyes over N-doped TiO 2 in solar radiation | |
| Sun et al. | A novel dual S-scheme heterojunction photocatalyst β-Bi2O3/NiAl-LDH/α-Bi2O3 induced by phase-transformed bismuth oxide for efficient degradation of antibiotics in full-spectrum: Degradation pathway, DFT calculation and mechanism insight | |
| Samadi-Maybodi et al. | Application of CdS QDs incorporated in magnetized powder activated carbon for degradation of some dyes: photodegradation process and comprehensive catalytic and spectroscopic studies | |
| Sivakumar et al. | Enhanced photocatalytic degradation of reactive dyes over FeTiO 3/TiO 2 heterojunction in the presence of H 2 O 2 | |
| Mirhosseini et al. | Fabrication of an efficient ternary TiO2/Bi2WO6 nanocomposite supported on g-C3N4 with enhanced visible-light-photocatalytic activity: Modeling and systematic optimization procedure | |
| Sanad et al. | Photocatalytic reduction of hexavalent chromium with commercial Fe/Ti oxide catalyst under UV and visible light irradiation | |
| CN109569648A (en) | A kind of method of ferrous acid silver nano material catalysis organic wastewater treatment through persulfate | |
| Sanni et al. | Tailored synthesis of Ag/AgBr nanostructures coupled activated carbon with intimate interface interaction for enhanced photodegradation of tetracycline | |
| Tan et al. | Development of physicochemically stable Z-scheme MIL-88A/g-C3N4 heterojunction photocatalyst with excellent charge transfer for improving acid red 1 dye decomposition efficiency | |
| Zhu et al. | Heterogeneous activation of persulfate by Bi2MoO6–CuS composite for efficient degradation of orange II under visible light | |
| Zhang et al. | Synthesis of dual Z-scheme photocatalyst ZnFe2O4/PANI/Ag2CO3 with enhanced visible light photocatalytic activity and degradation of pollutants | |
| Derakhshani et al. | Biosynthesis of MnFe2O4@ TiO2 magnetic nanocomposite using oleaster tree bark for efficient photocatalytic degradation of humic acid in aqueous solutions | |
| Aflaki et al. | Investigation of copper plates as anode and TiO2/glycine/ZnFe2O4 stabilized on graphite as cathode for textile dyes degradation from aqueous solution under visible light | |
| Khatun et al. | Facile synthesis of ZnO/g-C3N4 with enhanced photocatalytic performance for the reduction of Cr (VI) in presence of EDTA under visible light irradiation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 Termination date: 20211012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |