CN106111181A - Porous graphene zeolite BiOX catalysis material and preparation and application - Google Patents
Porous graphene zeolite BiOX catalysis material and preparation and application Download PDFInfo
- Publication number
- CN106111181A CN106111181A CN201610471976.6A CN201610471976A CN106111181A CN 106111181 A CN106111181 A CN 106111181A CN 201610471976 A CN201610471976 A CN 201610471976A CN 106111181 A CN106111181 A CN 106111181A
- Authority
- CN
- China
- Prior art keywords
- zeolite
- porous graphene
- biox
- catalysis material
- preparation
- 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.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 58
- 239000010457 zeolite Substances 0.000 title claims abstract description 58
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 56
- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 35
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000005204 segregation Methods 0.000 claims description 8
- 239000001117 sulphuric acid Substances 0.000 claims description 8
- 235000011149 sulphuric acid Nutrition 0.000 claims description 8
- 150000001336 alkenes Chemical class 0.000 claims description 7
- 229910052797 bismuth Inorganic materials 0.000 claims description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 18
- 238000004108 freeze drying Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 description 18
- 239000007788 liquid Substances 0.000 description 18
- 230000001699 photocatalysis Effects 0.000 description 17
- 238000007146 photocatalysis Methods 0.000 description 15
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 14
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 description 13
- 230000015556 catabolic process Effects 0.000 description 12
- 238000006731 degradation reaction Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 229940043267 rhodamine b Drugs 0.000 description 8
- 239000011941 photocatalyst Substances 0.000 description 7
- -1 and in tube furnace Chemical compound 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000010792 warming Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 229940073609 bismuth oxychloride Drugs 0.000 description 4
- PIJVDJTXPKJZHD-UHFFFAOYSA-M bismuth;oxygen(2-);bromide Chemical compound [O-2].[Br-].[Bi+3] PIJVDJTXPKJZHD-UHFFFAOYSA-M 0.000 description 4
- ORZGULPODBRYCV-UHFFFAOYSA-M bismuth;oxygen(2-);iodide Chemical compound [O-2].[I-].[Bi+3] ORZGULPODBRYCV-UHFFFAOYSA-M 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 240000005373 Panax quinquefolius Species 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- 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 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000002121 nanofiber Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- FQMZOWUZJQNWBB-UHFFFAOYSA-K [Bi](Cl)(Cl)Cl.[I] Chemical compound [Bi](Cl)(Cl)Cl.[I] FQMZOWUZJQNWBB-UHFFFAOYSA-K 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000013335 mesoporous material Substances 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002055 nanoplate Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000004580 weight loss Effects 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/7807—A-type
-
- B01J35/39—
-
- B01J35/393—
-
- B01J35/613—
-
- 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
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention belongs to catalysis material technical field, disclose a kind of porous graphene zeolite BiOX catalysis material and preparation and application.Described catalysis material by the porous graphene of 9～50 mass parts, 50～91 mass parts zeolite and the BiOX of 10～100 mass parts be composited.Described preparation method is: porous graphene and zeolite are reacted in ethanol solution, obtain porous graphene Zeolite composite materials, then itself and BiOX are reacted in ethanol solution, lyophilization, obtain porous graphene zeolite BiOX catalysis material.The inventive method use porous graphene zeolite as carrier, can preferably loaded BiOX, increase the specific surface area of BiOX, reduce BiOX crystallite dimension, significantly improve catalyst activity.
Description
Technical field
The invention belongs to catalysis material technical field, be specifically related to a kind of porous graphene-zeolite-BiOX light and urge
Formed material and preparation and application.
Background technology
Along with becoming increasingly conspicuous of Global Environmental Problems, the photochemical catalytic oxidation of semi-conducting material is utilized to carry out pollutant control
Become the study hotspot in pollutant abatement technology field.Meanwhile, in today of energy worsening shortages, the nature that utilizes of solar energy can become
For people's focus of attention.Up to the present, TiO2Being proved to be classic semiconductor light-catalyst, its oxidability is strong,
Catalysis activity is high, and the advantage such as biology, chemistry, photochemical stability is constantly in core status (the Xu Bai-in photocatalysis research
Huan,Lin Bi-Zhou,Wang Qin-Qin,Pian Xue-Tao,Zhang Ou,Fu Li-Mei.Anatase TiO2-
pillared hexaniobate mesoporous nanocomposite with enhanced photocatalytic
activity[J].Microporous and Mesoporous Materials,2012,147(1):79-85.).But,
TiO2Band-gap energy be 3.2ev, only wavelength less than 387nm ultraviolet light it just can be excited to produce electron hole pair.Too
Solar spectrum medium ultraviolet light (below 400nm) is less than 5%, and the visible ray that wavelength is 400～800nm accounts for 43%, therefore, seeks
Have high performance visible-light photocatalysis material be inexorable trend (Surajit Kumar, Andrei G.Fedorova,
James L.Gole.Photodegradation of ethylene using visible light responsive
surfaces prepared from titania nanoparticle slurries[J].Applied Catalysis B:
Environmental,2005,57(2):93-107.)。
BiOX (BiOX, X=F, Cl, Br, I) with the electronic structure of its uniqueness, good photocatalysis performance and high
Chemical stability, has attracted the extensive concern of researcher, and has become nova (Wei Pingyu, a poplar in photocatalysis research field
Blue or green woods, Guo Lin. BiOX compound photocatalyst [J]. chemical progress .2009,21 (9): 1734-1741.).But, oxyhalogen
The performance changing bismuth photocatalysis performance is strongly depend on the particle diameter of himself, only by the size controlling of BiOX granule at micro-nano
Rice scope, could effectively shorten the distance that excites of electronics and hole, improve visible light catalytic efficiency (AR Liu, SM Wanga, YR
Zhao,Z Zheng.Low temperature preparation of nanocrystalline TiO2
photocatalyst with a very large specific surface area[J].Materials Chemistry
and Physics,2006,99(1):131-134.).Reunite it addition, BiOX is easy to produce, reduce photocatalysis efficiency
(Wei Pingyu, Yang Qinglin, Guo Lin. BiOX compound photocatalyst [J]. chemical progress .2009,21 (9): 1734-
1741.).In order to avoid drawbacks described above, the most conventional solution is that prepare can immobilized BiOX photocatalyst.
(Changhua Wang, Changlu Shao, the Yichun Liu, Lina such as Wang
Zhang.Photocatalytic properties BiOCl and Bi2O3 nanofibers prepared by
Electrospinning [J] .Scripta Materialia, 2008,59 (3): 332-335.) method using Electrospun, with
PAN is that to prepare particle diameter be 80～140nm to carrier, and length reaches the BiOCl fiber of several microns.Urge using BiOCl fiber as light
During agent, under ultraviolet-visible light, in 60min by the degraded of rhodamine B (RB) almost all completely；Under the same terms, its catalysis
Performance is Bi2O3Three times of nanofiber photocatalyst.Additionally, the research of settling property after BiOCl fiber-reactive is shown, long
Degree is for micron-sized BiOCl fiber after photocatalysis completes, and within 1h, from water slurry, sedimentation is complete.BiOCl fiber has
Repeatable usability, it is possible to avoid secondary pollution, reduces cost, has broad prospects in industrial applications.Yu etc.
(Changlin Yu,Jimmy C.Yu,Caifeng Fan,Herui Wen,Shengjie Hu.Synthesis and
characterization of Pt/BiOI nanoplate catalyst with enhanced activity under
visible light irradiation[J].Materials Science and Engineering:B,Advanced
Functional Solid-State Materials, 2010,166 (3): 213-219.) synthesize a series of Pt/BiOI nanometer
Sheet, platinum nanoparticle can serve as electronics trapping agent, promotes electronics and the separation in hole, reduces recombination rate again, increases quantum efficiency.
By Acid Orange II of degrading under visible light illumination to measure its activity.Result shows, irradiates 1h, Pt (0.2%wt)/BiOI and urges
Changing activity the highest, the degradation rate to Acid Orange II is 90%, can substantially overcome BiOX to be easy to produce the problem reunited.Specially
Profit (CN101653732) " a kind of molecular sieve loaded BiOX photocatalyst, preparation method and applications " provides a kind of point
Son sieve loaded BiOX photocatalyst, preparation method and applications, the catalyst of this invention is with in SBA-15, ZSM-5, HY
One or more be carrier, BiOX be active component constitute loaded catalyst.This catalyst is organic for gas phase
The removal of thing.Introducing molecular sieve in this catalyst is carrier, increases the specific surface area of catalyst, reduces crystallite dimension, aobvious
Write the activity improving catalyst degradation benzene.
As seen from the above analysis, the problem that prior art yet suffers from function singleness, it is impossible to comprehensively solve zirconyl oxyhalides
Bismuth is easy to the problem producing reunion and photocatalysis efficiency by grain diameter influence.
Summary of the invention
In place of solving the shortcoming and defect of above prior art, the primary and foremost purpose of the present invention is to provide a kind of porous
Graphene-zeolite-BiOX catalysis material.The BiOX size tunable of resulting materials, be difficult to reunite, Adsorption of Organic
Ability is strong, visible light catalysis activity strengthens.
Another object of the present invention is to provide the preparation of above-mentioned porous graphene-zeolite-BiOX catalysis material
Method.
It is still another object of the present invention to provide above-mentioned porous graphene-zeolite-BiOX catalysis material visible
The application of Degradation of Organo-pollutants in Water with Photo-catalysis.
The object of the invention is achieved through the following technical solutions:
A kind of porous graphene-zeolite-BiOX catalysis material, described catalysis material is by 9～50 mass parts
Porous graphene, 50～91 mass parts zeolite and the BiOX of 10～100 mass parts be composited.Its composition is represented by
[porous graphene]a[zeolite]b[BiOX]c, wherein a, b, c represent porous graphene, zeolite and the quality of BiOX (BiOX)
Ratio.
Preferably, the specific surface area of described porous graphene is 350～450m2/ g, electrical conductivity is 20～60S m-1, 900
DEG C interior weightlessness is 4～6wt%；The particle diameter of described zeolite is 0.3～0.5nm, and specific surface area is 100～400m2/g。
The preparation method of above-mentioned porous graphene-zeolite-BiOX catalysis material, including following preparation process:
(1) preparation of porous graphene: added by graphite powder in concentrated sulphuric acid, adds KMnO under cryosel bath cooling4, room temperature is stirred
Mix reaction, reacted rear dilute, add hydrogen peroxide, after centrifugal segregation impurity, gained supernatant successively through ultrasonic and
Microwave treatment, obtains graphene oxide solution, is subsequently adding NaOH, protects lower sintering in 700～800 DEG C and nitrogen, obtains many
Hole Graphene；
(2) preparation of porous graphene-Zeolite composite materials: step (1) gained porous graphene joins in ethanol, super
Add zeolite after sonication to be uniformly mixed, add after heat abstraction ethanol in 700～800 DEG C of sintering, obtain porous graphene-boiling
Stone composite material；
(3) preparation of porous graphene-zeolite-BiOX: joined by BiOX in ethanol, is subsequently adding step (2)
Gained porous graphene-Zeolite composite materials, the uniform postlyophilization of ultrasonic disperse, obtain described porous graphene-zeolite-halogen
Bismuth oxide catalysis material.
Preferably, KMnO described in step (1)4Consumption is graphite powder quality 2.5～3 times；The use of described hydrogen peroxide
Amount and the mass volume ratio of graphite powder be (2～3)-: 1mL/g；The consumption of described NaOH is 3～5 times of graphite powder quality.
Preferably, consumption is porous graphene quality 1～10 times of zeolite described in step (2).
Preferably, the mass ratio that BiOX described in step (3) and porous graphene-Zeolite composite materials adds be (10～
100): (100～110).
Above-mentioned porous graphene-zeolite-BiOX catalysis material is at visible light photocatalytic degradation organic pollutants
Application.
Relative to prior art, the invention have the advantages that and beneficial effect:
(1) the inventive method employing porous graphene-zeolite is as carrier, can preferably loaded BiOX, increase
The specific surface area of BiOX, reduces BiOX crystallite dimension, significantly improves catalyst activity.
(2) porous graphene can serve as electronics trapping agent, promotes electronics and the separation in hole, reduces recombination rate again, increases
Add the quantum efficiency of BiOX.
(3) use freeze-drying to process porous graphene-zeolite-BiOX, increase the specific surface of catalyst
Reduce the size of crystal grain while Ji, the catalysis activity of BiOX can be improved.
(4) porous graphene-zeolite-BiOX has repeatable usability, it is possible to avoids secondary pollution, reduces into
This, have broad prospects in industrial applications.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
The physicochemical property of following example products therefrom measures by the following method:
Specific surface area: use Micromeritics ASAP 2010 to measure graphene oxide specific surface area；
The resistivity of porous graphene and electrical conductivity: utilize the resistance of RTS-8 type four probe instrument test porous graphene
Rate and electrical conductivity；
The thermal weight loss of porous graphene: use the SDT-Q600 type thermogravimetric analyzer of TA company of the U.S. to carry out thermogravimetric test,
10 DEG C/min of heating rate, at N2Atmosphere is carried out；
Embodiment 1
(1), during 100g graphite powder adds 2.5L concentrated sulphuric acid, cryosel bath is cooled to 0 DEG C, is slowly added to the KMnO of 250g4, so
After be warming up to 30 DEG C, 60rpm stirs 2h, adds 20L water, adds 200mL hydrogen peroxide, after 600rpm centrifugal segregation impurity, super
Sound (400W, 50Hz) processes upper liquid 1h, and microwave (800W, 2450Hz) processes upper liquid 1h then, obtains graphene oxide molten
Liquid, is subsequently adding 300g NaOH, and in tube furnace, nitrogen protects 700 DEG C of heating 1h, obtains 50g porous graphene；Porous graphite
The specific surface area of alkene is 350m2/g；Its electrical conductivity is 60S m-1；900 DEG C of interior weightlessness are 4wt%.
(2) joining in 50L ethanol by 50g porous graphene, ultrasonic (400W, 50Hz) processes 1h, is subsequently adding 50g grain
Footpath is 3A zeolite, and 20rpm stirs 1h, and 80 DEG C of heating 1h remove ethanol, 700 DEG C of heating 1h obtain the solid porous Graphene of 100g-
Zeolite composite materials.
(3), during the BiOCl of 10g joins 100mL ethanol, it is subsequently adding the porous graphene-Zeolite composite materials of 100g,
Ultrasonic (400W, 50Hz) processes 1h, lyophilization, obtains porous graphene-zeolite-BiOX catalysis material.Its composition
For [porous graphene]50[zeolite]50[BiOCl]10。
Embodiment 2
(1), during 100g graphite powder adds 2.5L concentrated sulphuric acid, cryosel bath is cooled to 0 DEG C, is slowly added to the KMnO of 260g4, so
After be warming up to 30 DEG C, 60rpm stirs 2h, adds 20L water, adds 300mL hydrogen peroxide, after 600rpm centrifugal segregation impurity, super
Sound (400W, 50Hz) processes upper liquid 1h, and microwave (800W, 2450Hz) processes upper liquid 1h then, obtains graphene oxide molten
Liquid, is subsequently adding 300g NaOH, and in tube furnace, nitrogen protects 760 DEG C of heating 1h, obtains 33g porous graphene；Porous graphite
The specific surface area of alkene is 370m2/g；Its electrical conductivity is 50S m-1；900 DEG C of interior weightlessness are 4.5wt%.
(2) joining in 33L ethanol by 33g porous graphene, ultrasonic (400W, 50Hz) processes 1h, is subsequently adding 67g grain
Footpath is 4A zeolite, and 20rpm stirs 1h, and 80 DEG C of heating 1h remove ethanol, 760 DEG C of heating 1h obtain the solid porous Graphene of 100g-
Zeolite composite materials；
(3), during the BiOBr of 20g joins 100mL ethanol, it is subsequently adding the porous graphene-Zeolite composite materials of 100g,
Ultrasonic (400W, 50Hz) processes 1h, lyophilization, obtains porous graphene-zeolite-BiOX catalysis material.Its composition
For [porous graphene]33[zeolite]67[BiOBr]20。
Embodiment 3
(1), during 100g graphite powder adds 2.5L concentrated sulphuric acid, cryosel bath is cooled to 0 DEG C, is slowly added to the KMnO of 270g4, so
After be warming up to 30 DEG C, 60rpm stirs 2h, adds 20L water, adds 200mL hydrogen peroxide, after 600rpm centrifugal segregation impurity, super
Sound (400W, 50Hz) processes upper liquid 1h, and microwave (800W, 2450Hz) processes upper liquid 1h then, obtains graphene oxide molten
Liquid, is subsequently adding 400g NaOH, and in tube furnace, nitrogen protects 800 DEG C of heating 1h, obtains 20g porous graphene；Porous graphite
The specific surface area of alkene is 390m2/g；Its electrical conductivity is 40S m-1；900 DEG C of interior weightlessness are 5wt%.
(2) joining in 100mL ethanol by 20g porous graphene, ultrasonic (400W, 50Hz) processes 1h, is subsequently adding 80g
Particle diameter is 5A zeolite, and 20rpm stirs 1h, 80 DEG C of heating 1h and removes ethanol, and 800 DEG C of heating 1h obtain the solid porous graphite of 100g
Alkene-Zeolite composite materials.
(3), during the BiOI of 40g joins 100mL ethanol, it is subsequently adding the porous graphene-Zeolite composite materials of 100g,
Ultrasonic (400W, 50Hz) processes 1h, lyophilization, obtains porous graphene-zeolite-BiOX catalysis material.Its composition
For [porous graphene]20[zeolite]80[BiOI]40。
Embodiment 4
(1), during 100g graphite powder adds 2.5L concentrated sulphuric acid, cryosel bath is cooled to 0 DEG C, is slowly added to the KMnO of 280g4, so
After be warming up to 30 DEG C, 60rpm stirs 2h, adds 20L water, adds 300mL hydrogen peroxide, after 600rpm centrifugal segregation impurity, super
Sound (400W, 50Hz) processes upper liquid 1h, and microwave (800W, 2450Hz) processes upper liquid 1h then, obtains graphene oxide molten
Liquid, is subsequently adding 300g NaOH, and in tube furnace, nitrogen protects 760 DEG C of heating 1h, obtains 14g porous graphene；Porous graphite
The specific surface area of alkene is 410m2/g；Its electrical conductivity is 30S m-1；900 DEG C of interior weightlessness are 5.5wt%.
(2) joining in 100mL ethanol by 14g porous graphene, ultrasonic (400W, 50Hz) processes 1h, is subsequently adding 86g
Particle diameter is 3A zeolite, and 20rpm stirs 1h, 80 DEG C of heating 1h and removes ethanol, and 760 DEG C of heating 1h obtain the solid porous graphite of 100g
Alkene-Zeolite composite materials.
(3), during the BiOCl of 60g joins 100mL ethanol, it is subsequently adding the porous graphene-Zeolite composite materials of 100g,
Ultrasonic (400W, 50Hz) processes 1h, lyophilization, obtains porous graphene-zeolite-BiOX catalysis material.Its composition
For [porous graphene]14[zeolite]86[BiOCl]60。
Embodiment 5
(1), during 100g graphite powder adds 2.5L concentrated sulphuric acid, cryosel bath is cooled to 0 DEG C, is slowly added to the KMnO of 290g4, so
After be warming up to 30 DEG C, 60rpm stirs 2h, adds 20L water, adds 200mL hydrogen peroxide, after 600rpm centrifugal segregation impurity, super
Sound (400W, 50Hz) processes upper liquid 1h, and microwave (800W, 2450Hz) processes upper liquid 1h then, obtains graphene oxide molten
Liquid, is subsequently adding 400g NaOH, and in tube furnace, nitrogen protects 700 DEG C of heating 1h, obtains 11g porous graphene；Porous graphite
The specific surface area of alkene is 430m2/g；Its electrical conductivity is 25S m-1；900 DEG C of interior weightlessness are 5.5wt%.
(2) joining in 100mL ethanol by 11g porous graphene, ultrasonic (400W, 50Hz) processes 1h, is subsequently adding 89g
Particle diameter is 4A zeolite, and 20rpm stirs 1h, 80 DEG C of heating 1h and removes ethanol, and 700 DEG C of heating 1h obtain the solid porous graphite of 100g
Alkene-Zeolite composite materials.
(3), during the BiOBr of 80g joins 100mL ethanol, it is subsequently adding the porous graphene-Zeolite composite materials of 100g,
Ultrasonic (400W, 50Hz) processes 1h, lyophilization, obtains porous graphene-zeolite-BiOX catalysis material.Its composition
For [porous graphene]11[zeolite]89[BiOBr]80。
Embodiment 6
(1), during 100g graphite powder adds 2.5L concentrated sulphuric acid, cryosel bath is cooled to 0 DEG C, is slowly added to the KMnO of 300g4, so
After be warming up to 30 DEG C, 60rpm stirs 2h, adds 20L water, adds 300mL hydrogen peroxide, after 600rpm centrifugal segregation impurity, super
Sound (400W, 50Hz) processes upper liquid 1h, and microwave (800W, 2450Hz) processes upper liquid 1h then, obtains graphene oxide molten
Liquid, is subsequently adding 500g NaOH, and in tube furnace, nitrogen protects 800 DEG C of heating 1h, obtains 9g porous graphene；Porous graphite
The specific surface area of alkene is 450m2/g；Its electrical conductivity is 20S m-1；900 DEG C of interior weightlessness are 6wt%.
(2) joining in 100mL ethanol by 9g porous graphene, ultrasonic (400W, 50Hz) processes 1h, is subsequently adding 91g
Particle diameter is 5A zeolite, and 20rpm stirs 1h, 800 DEG C of heating 1h, obtains the solid porous Graphene-Zeolite composite materials of 100g.
(3), during the BiOI of 100g joins 100mL ethanol, it is subsequently adding the porous graphene-Zeolite composite materials of 100g,
Ultrasonic (400W, 50Hz) processes 1h, lyophilization, obtains porous graphene-zeolite-BiOX catalysis material.Its composition
For [porous graphene]9[zeolite]91[BiOI]100。
From embodiment 1～6 it can be seen that by the addition changing porous graphene-zeolite-BiOX, make respectively
Obtain the visible light catalyst that porous graphene-zeolite-BiOX ratio is different.
The performance evaluation of gained porous graphene-zeolite-BiOX visible light catalyst of the present invention:
(1) porous graphene-zeolite-Basic bismuth iodide 0.05g of Example 6 preparation, joins the rhodamine of 50mL
(10mg/L), in aqueous solution, regulate pH=3.0, proceed in vial after mixing mix homogeneously, dark reaction in dark environment
Photocatalysis test is done, it is seen that light modulation is xenon lamp (300W, > 420nm) after 60min.Sample after 2h, at 551nm, measure solution
Absorbance (Lambda25 ultraviolet-visible spectrophotometer), test rhodamine degradation effect (Wang Zhao, Mao Feng, Huang Xiangping,
Huang Yingping, Feng's sheng, a reed pipe wind instrument qin, Yi Jia, Zhang Changyuan, Liu bolt .TiO2The preparation of/graphene composite material and photocatalysis performance [J] thereof. material
Material scientific and engineering journal, 2011,29 (2): 267-232.).Result is as shown in table 1.
The active effect of table 1 porous graphene-zeolite-Basic bismuth iodide visible light catalyst rhodamine B degradation
Active testing result shows, uses porous graphene-zeolite as carrier, can preferably load Basic bismuth iodide,
Increasing the specific surface area of Basic bismuth iodide, reduce Basic bismuth iodide crystallite dimension, after porous graphene-zeolite-loaded, iodine aoxidizes
The activity of bismuth rhodamine B degradation is significantly improved, and illustrates that porous graphene-zeolite is remarkably improved Basic bismuth iodide catalyst and lives
Property, have broad prospects.
(2) porous graphene-zeolite-Basic bismuth bromide 0.05g of Example 5 preparation, joins the rhodamine of 50mL
(10mg/L), in aqueous solution, regulate pH=3.0, proceed in vial after mixing mix homogeneously, dark reaction in dark environment
Photocatalysis test is done, it is seen that light modulation is xenon lamp (300W, > 420nm) after 60min.Sample after 2h, at 551nm, measure solution
Absorbance (Lambda25 ultraviolet-visible spectrophotometer), test rhodamine degradation effect (Wang Zhao, Mao Feng, Huang Xiangping,
Huang Yingping, Feng's sheng, a reed pipe wind instrument qin, Yi Jia, Zhang Changyuan, Liu bolt .TiO2The preparation of/graphene composite material and photocatalysis performance [J] thereof. material
Material scientific and engineering journal, 2011,29 (2): 267-232.).Result is as shown in table 2.
The active effect of table 2 porous graphenes-zeolite-Basic bismuth bromide visible light catalyst rhodamine B degradation
Active testing result shows, uses porous graphene-zeolite as carrier, can preferably load Basic bismuth bromide,
Increasing the specific surface area of Basic bismuth bromide, reduce Basic bismuth bromide crystallite dimension, after porous graphene-zeolite-loaded, bromine aoxidizes
The activity of bismuth rhodamine B degradation is significantly improved, and illustrates that porous graphene-zeolite is remarkably improved Basic bismuth bromide catalyst and lives
Property, have broad prospects.
(3) porous graphene-zeolite-bismuth oxychloride 0.05g of Example 4 preparation, joins the rhodamine of 50mL
(10mg/L), in aqueous solution, regulate pH=3.0, proceed in vial after mixing mix homogeneously, dark reaction in dark environment
Photocatalysis test is done, it is seen that light modulation is xenon lamp (300W, > 420nm) after 60min.Sample after 2h, at 551nm, measure solution
Absorbance (Lambda25 ultraviolet-visible spectrophotometer), test rhodamine degradation effect (Wang Zhao, Mao Feng, Huang Xiangping,
Huang Yingping, Feng's sheng, a reed pipe wind instrument qin, Yi Jia, Zhang Changyuan, Liu bolt .TiO2The preparation of/graphene composite material and photocatalysis performance [J] thereof. material
Material scientific and engineering journal, 2011,29 (2): 267-232.).Result is as shown in table 3.
The active effect of table 3 porous graphenes-zeolite-BiOX visible light catalyst rhodamine B degradation
Active testing result shows, uses porous graphene-zeolite as carrier, can preferably load bismuth oxychloride,
Increase the specific surface area of bismuth oxychloride, reduce iodine bismuth chloride crystallite dimension, after porous graphene-zeolite-loaded, oxychloride
The activity of bismuth rhodamine B degradation is significantly improved, and illustrates that porous graphene-zeolite is remarkably improved bismuth oxychloride catalyst and lives
Property, have broad prospects.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (7)
1. porous graphene-zeolite-BiOX catalysis material, it is characterised in that: described catalysis material is by 9～50
The porous graphene of mass parts, 50～91 mass parts zeolite and the BiOX of 10～100 mass parts be composited.
A kind of porous graphene-zeolite-BiOX catalysis material the most according to claim 1, it is characterised in that: institute
The specific surface area stating porous graphene is 350～450m2/ g, electrical conductivity is 20～60S m-1, 900 DEG C of interior weightlessness be 4～
6wt%；The particle diameter of described zeolite is 0.3～0.5nm, and specific surface area is 100～400m2/g。
3. the preparation method of the porous graphene-zeolite-BiOX catalysis material described in claim 1 or 2, its feature exists
In including following preparation process:
(1) preparation of porous graphene: added by graphite powder in concentrated sulphuric acid, adds KMnO under cryosel bath cooling4, it is stirred at room temperature anti-
Should, reacting rear dilute, added hydrogen peroxide, after centrifugal segregation impurity, gained supernatant is successively through ultrasonic and microwave
Process, obtain graphene oxide solution, be subsequently adding NaOH, protect lower sintering in 700～800 DEG C and nitrogen, obtain porous stone
Ink alkene；
(2) preparation of porous graphene-Zeolite composite materials: step (1) gained porous graphene joins in ethanol, ultrasonic place
Add zeolite after reason to be uniformly mixed, add after heat abstraction ethanol in 700～800 DEG C of sintering, obtain porous graphene-zeolite multiple
Condensation material；
(3) preparation of porous graphene-zeolite-BiOX: joined by BiOX in ethanol, is subsequently adding step (2) gained
Porous graphene-Zeolite composite materials, the uniform postlyophilization of ultrasonic disperse, obtain described porous graphene-zeolite-zirconyl oxyhalides
Bismuth catalysis material.
The preparation method of porous graphene-zeolite-BiOX catalysis material the most according to claim 3, its feature
It is: KMnO described in step (1)4Consumption is graphite powder quality 2.5～3 times；The consumption of described hydrogen peroxide and graphite powder
Volume mass than for (2～3): 1mL/g；The consumption of described NaOH is 3～5 times of graphite powder quality.
The preparation method of porous graphene-zeolite-BiOX catalysis material the most according to claim 3, its feature
It is: consumption is porous graphene quality 1～10 times of zeolite described in step (2).
The preparation method of porous graphene-zeolite-BiOX catalysis material the most according to claim 3, its feature
Be: the mass ratio that BiOX described in step (3) and porous graphene-Zeolite composite materials adds is (10～100): (100～
110)。
7. porous graphene-zeolite-BiOX the catalysis material described in claim 1 or 2 is at visible light photocatalytic degradation water
The application of middle organic pollution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471976.6A CN106111181B (en) | 2016-06-22 | 2016-06-22 | Porous graphene-zeolite-BiOX catalysis material and preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471976.6A CN106111181B (en) | 2016-06-22 | 2016-06-22 | Porous graphene-zeolite-BiOX catalysis material and preparation and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106111181A true CN106111181A (en) | 2016-11-16 |
| CN106111181B CN106111181B (en) | 2019-07-05 |
Family
ID=57269023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610471976.6A Active CN106111181B (en) | 2016-06-22 | 2016-06-22 | Porous graphene-zeolite-BiOX catalysis material and preparation and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106111181B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051587A (en) * | 2017-06-01 | 2017-08-18 | 上海师范大学 | Float type conductor photocatalysis material and its preparation method and application |
| CN109364999A (en) * | 2018-11-23 | 2019-02-22 | 淮北师范大学 | A kind of ultra-thin porous 2D graphene/cadmium sulfide-organic amine composite photo-catalyst and preparation method thereof |
| CN111097393A (en) * | 2018-10-25 | 2020-05-05 | 中国科学院上海硅酸盐研究所 | Photocatalytic material based on two-dimensional porous graphene and preparation method and application thereof |
| CN113019401A (en) * | 2021-03-11 | 2021-06-25 | 黑龙江工业学院 | Preparation method, application and application method of graphene-based photocatalytic composite material |
| CN113117728A (en) * | 2021-03-07 | 2021-07-16 | 桂林理工大学 | ZSM-5/Bi4O5Br2Preparation method of composite photocatalytic material |
| CN117399059A (en) * | 2023-10-19 | 2024-01-16 | 北京道思克能源设备有限公司 | Preparation method of hydrocyanic acid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653732A (en) * | 2009-09-29 | 2010-02-24 | 福州大学 | Molecular sieve loaded BiOX photocatalyst, preparation method and application thereof |
| CN103111286A (en) * | 2013-01-22 | 2013-05-22 | 湖南元素密码石墨烯研究院（有限合伙） | Novel nano-composite visible light catalyst and preparation method thereof |
| CN103877971A (en) * | 2014-03-07 | 2014-06-25 | 中国科学院东北地理与农业生态研究所 | Efficient visible-light-induced photocatalyst and preparation method thereof |
| CN104353472A (en) * | 2014-11-26 | 2015-02-18 | 安徽工业大学 | Preparation method of BiOBr/RGO nanometer composite and application thereof in reaction of degrading rhodamine |
-
2016
- 2016-06-22 CN CN201610471976.6A patent/CN106111181B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653732A (en) * | 2009-09-29 | 2010-02-24 | 福州大学 | Molecular sieve loaded BiOX photocatalyst, preparation method and application thereof |
| CN103111286A (en) * | 2013-01-22 | 2013-05-22 | 湖南元素密码石墨烯研究院（有限合伙） | Novel nano-composite visible light catalyst and preparation method thereof |
| CN103877971A (en) * | 2014-03-07 | 2014-06-25 | 中国科学院东北地理与农业生态研究所 | Efficient visible-light-induced photocatalyst and preparation method thereof |
| CN104353472A (en) * | 2014-11-26 | 2015-02-18 | 安徽工业大学 | Preparation method of BiOBr/RGO nanometer composite and application thereof in reaction of degrading rhodamine |
Non-Patent Citations (5)
| Title |
|---|
| KOVTYUKHOVA, NI等: "Layer-by-layer assembly of ultrathin composite films from micron-sized graphite oxide sheets and polycations", 《CHEMISTRY OF MATERIALS》 * |
| 于爱丽: "石墨烯/沸石复合材料的制备及对水中污染物的吸附性能研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 于爱丽: "石墨烯/沸石复合材料的制备及对水中污染物的吸附性能研究", 《暨南大学硕士学位论文》 * |
| 林立等: "卤氧化铋异质结型可见光光催化的新进展", 《材料导报A：综述篇》 * |
| 郑昌琼等: "《简明材料词典》", 30 April 2002 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051587A (en) * | 2017-06-01 | 2017-08-18 | 上海师范大学 | Float type conductor photocatalysis material and its preparation method and application |
| CN107051587B (en) * | 2017-06-01 | 2020-04-07 | 上海师范大学 | Floating semiconductor photocatalytic material and preparation method and application thereof |
| CN111097393A (en) * | 2018-10-25 | 2020-05-05 | 中国科学院上海硅酸盐研究所 | Photocatalytic material based on two-dimensional porous graphene and preparation method and application thereof |
| CN109364999A (en) * | 2018-11-23 | 2019-02-22 | 淮北师范大学 | A kind of ultra-thin porous 2D graphene/cadmium sulfide-organic amine composite photo-catalyst and preparation method thereof |
| CN109364999B (en) * | 2018-11-23 | 2021-08-13 | 淮北师范大学 | Ultrathin porous 2D graphene/cadmium sulfide-organic amine composite photocatalyst and preparation method thereof |
| CN113117728A (en) * | 2021-03-07 | 2021-07-16 | 桂林理工大学 | ZSM-5/Bi4O5Br2Preparation method of composite photocatalytic material |
| CN113019401A (en) * | 2021-03-11 | 2021-06-25 | 黑龙江工业学院 | Preparation method, application and application method of graphene-based photocatalytic composite material |
| CN113019401B (en) * | 2021-03-11 | 2021-09-24 | 黑龙江工业学院 | Preparation method, application and application method of graphene-based photocatalytic composite material |
| CN117399059A (en) * | 2023-10-19 | 2024-01-16 | 北京道思克能源设备有限公司 | Preparation method of hydrocyanic acid |
| CN117399059B (en) * | 2023-10-19 | 2024-02-09 | 北京道思克能源设备有限公司 | Preparation method of hydrocyanic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106111181B (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106111181B (en) | Porous graphene-zeolite-BiOX catalysis material and preparation and application | |
| Liu et al. | Boron doped C3N4 nanodots/nonmetal element (S, P, F, Br) doped C3N4 nanosheets heterojunction with synergistic effect to boost the photocatalytic hydrogen production performance | |
| Wang et al. | Sb2WO6/BiOBr 2D nanocomposite S-scheme photocatalyst for NO removal | |
| Pan et al. | Preparation of carbon quantum dots/TiO 2 nanotubes composites and their visible light catalytic applications | |
| Zhu et al. | Construction and mechanism of a highly efficient and stable Z-scheme Ag 3 PO 4/reduced graphene oxide/Bi 2 MoO 6 visible-light photocatalyst | |
| Feizpoor et al. | Integration of carbon dots and polyaniline with TiO2 nanoparticles: substantially enhanced photocatalytic activity to removal various pollutants under visible light | |
| Li et al. | Photocatalysts based on g-C3N4-encapsulating carbon spheres with high visible light activity for photocatalytic hydrogen evolution | |
| Chen et al. | Visible-light photocatalytic activity of Ag2O coated Bi2WO6 hierarchical microspheres assembled by nanosheets | |
| Di et al. | A gC 3 N 4/BiOBr visible-light-driven composite: synthesis via a reactable ionic liquid and improved photocatalytic activity | |
| Chen et al. | In2O3/g-C3N4 composite photocatalysts with enhanced visible light driven activity | |
| Priya et al. | Synthesis of BiFeWO6/WO3 nanocomposite and its enhanced photocatalytic activity towards degradation of dye under irradiation of light | |
| Yang et al. | Roles of photo-generated holes and oxygen vacancies in enhancing photocatalytic performance over CeO2 prepared by molten salt method | |
| Zhao et al. | In situ co-precipitation for the synthesis of an Ag/AgBr/Bi5O7I heterojunction for enhanced visible-light photocatalysis | |
| Song et al. | Fabrication and mechanism of a novel direct solid-state Z-scheme photocatalyst CdS/BiOI under visible light | |
| Perales-Martínez et al. | Facile synthesis of InVO4/TiO2 heterojunction photocatalysts with enhanced photocatalytic properties under UV–vis irradiation | |
| Yoon et al. | Graphene, charcoal, ZnO, and ZnS/BiOX (X= Cl, Br, and I) hybrid microspheres for photocatalytic simulated real mixed dye treatments | |
| Zhang et al. | One-dimensional mesoporous Fe2O3@ TiO2 core–shell nanocomposites: rational design, synthesis and application as high-performance photocatalyst in visible and UV light region | |
| Tang et al. | Ultrafast NaN3-deflagration induced nitrogen vacancy-enriched g-C3N4 for tailoring band structures and enhanced photocatalytic performance | |
| CN104801328B (en) | Method for preparing TiO2/g-C3N4 composite photocatalyst at low temperature | |
| Zhang et al. | Enhanced photocatalytic activity towards degradation and H2 evolution over one dimensional TiO2@ MWCNTs heterojunction | |
| Smrithi et al. | Carbon dots decorated cadmium sulphide heterojunction-nanospheres for the enhanced visible light driven photocatalytic dye degradation and hydrogen generation | |
| Yin et al. | Greatly enhanced photocatalytic activity of semiconductor CeO 2 by integrating with upconversion nanocrystals and graphene | |
| Luo et al. | Fabrication and characterization of Ag 2 CO 3/SnS 2 composites with enhanced visible-light photocatalytic activity for the degradation of organic pollutants | |
| Hu et al. | Engineering 2D compressed layered g-C3N4 nanosheets by the intercalation of BiVO4-Bi2WO6 composites for boosting photocatalytic activities | |
| Zeng et al. | Magnetically recyclable MnFe2O4/polyaniline composite with enhanced visible light photocatalytic activity for rhodamine B degradation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |