CN106076367B - It is a kind of to prepare CdS/CoWO4The method of heterojunction composite photocatalyst - Google Patents
It is a kind of to prepare CdS/CoWO4The method of heterojunction composite photocatalyst Download PDFInfo
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910019408 CoWO4 Inorganic materials 0.000 claims abstract description 24
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 15
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims abstract description 6
- LHQLJMJLROMYRN-UHFFFAOYSA-L cadmium acetate Chemical compound [Cd+2].CC([O-])=O.CC([O-])=O LHQLJMJLROMYRN-UHFFFAOYSA-L 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 claims abstract description 5
- 230000001376 precipitating effect Effects 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 14
- 229910017052 cobalt Inorganic materials 0.000 claims description 10
- 239000010941 cobalt Substances 0.000 claims description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 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 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 12
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 abstract description 8
- 229960000907 methylthioninium chloride Drugs 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 229910052723 transition metal Inorganic materials 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 150000003624 transition metals Chemical class 0.000 abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 4
- 235000019441 ethanol Nutrition 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 abstract 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 abstract 1
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 26
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 26
- 239000003054 catalyst Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002114 nanocomposite Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- CRLHSBRULQUYOK-UHFFFAOYSA-N dioxido(dioxo)tungsten;manganese(2+) Chemical compound [Mn+2].[O-][W]([O-])(=O)=O CRLHSBRULQUYOK-UHFFFAOYSA-N 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 238000004435 EPR spectroscopy Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- MPMSMUBQXQALQI-UHFFFAOYSA-N cobalt phthalocyanine Chemical compound [Co+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 MPMSMUBQXQALQI-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000001239 high-resolution electron microscopy Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- -1 transition metal tungstate Chemical class 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/049—Sulfides with chromium, molybdenum, tungsten or polonium with iron group metals or platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- 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
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
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- 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
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
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- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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Abstract
The present invention relates to transition metal tungstates, refer in particular to a kind of using sodium hydroxide, sodium tungstate and cobalt nitrate as raw material preparation CdS/CoWO4The method of heterojunction composite photocatalyst.Suitable sodium tungstate is taken, is added in the solution containing cobalt chloride, a certain amount of sodium hydroxide is added under stiring, adjusting pH value of solution is 8,180 DEG C of hydro-thermal reaction, 12 hours, obtained precipitating ethyl alcohol and deionized water is alternately cleaned three times；The CoWO that will be obtained4In deionized water, the thiocarbamide and cadmium acetate of the amount of substance such as addition continue to carry out 180 DEG C of hydro-thermal reaction after being uniformly mixed, 24 hours, after reaction, precipitating are filtered, is washed, dries, obtains CdS/CoWO ultrasonic disperse4Heterojunction composite photocatalyst.By degradation of methylene blue under visible light (MB) experiments have shown that prepared composite photo-catalyst has good photocatalytic activity.
Description
Technical field
The present invention relates to transition metal tungstates, a kind of with sodium hydroxide, sodium tungstate, cobalt chloride, thiocarbamide and acetic acid are refered in particular to
Cadmium is that raw material prepares CdS/CoWO4The method of heterojunction composite photocatalyst, especially a kind of preparation process is simple, and product has
The nano composite photo-catalyst preparation method of good visible light catalysis activity.
Technical background
Metal tungstates have been found broad application due to properties such as its unique electricity, optics in many fields, wherein
Transition metal tungstates (CoWO4) there is stable chemical property, compared to other with visible light-responded transition metal tungsten
Hydrochlorate conduction band positions are higher, have the ability for generating superoxide radical, thus have become focus of attention in photocatalysis field；
Existing CoWO4The catalytic activity of transition metal tungstate catalysts is still very low, and electron-hole pair is compound serious, Wu Faman
The demand of sufficient practical application, therefore the separative efficiency of electrons and holes is improved to reach the catalytic activity for improving this kind of photochemical catalyst
It is still a challenging project.
Hetero-junctions its due to special band structure and carrier transport characteristic, can effectively inhibit light in light-catalyzed reaction
Raw electrons and holes are compound, improve quantum efficiency, and then greatly improve the catalytic activity of photochemical catalyst, cadmium sulfide (CdS) has
The characteristics of narrow energy band and quality fine paper position is a kind of semiconductor light-catalyst that building heterojunction structure is ideal, currently, not having also
About the hetero-junctions between cobaltous tungstate and cadmium sulfide and it is applied to the research of photocatalysis degradation organic contaminant.
The advantages that low energy consumption using hydro-thermal method by the present invention, yield is high, product purity is high, reaction condition is controllable, applicability is wide,
CdS/CoWO has been synthesized using two one-step hydrothermal low temperature4Heterojunction structure, while adjusting different cadmium sulfide and manganese tungstate molar ratio
Example, by photocatalytic degradation methylene blue (MB), this to common are engine dyeing material living to investigate the catalysis of prepared photochemical catalyst
Property
Summary of the invention
It is an object of the present invention to provide a kind of high efficiency photocatalyst based on transition metal tungstates of two one-step hydrothermals preparation,
The method for realizing the nano composite photo-catalyst of photocatalytic degradation methylene blue under visible light.
The present invention is realized by following steps:
(1) thiocarbamide and cadmium acetate are added after wolframic acid cobalt nanometer particle being dispersed in deionized water, after being uniformly mixed
Hydro-thermal reaction is carried out, and then obtains CdS/CoWO4Heterojunction composite photocatalyst, wherein CdS and and CoWO4Molar ratio be
0.1-1.5:1.
Further, the condition of hydro-thermal reaction are as follows: hydro-thermal reaction 24 hours at 180 DEG C.
Further, the wolframic acid cobalt nanometer particle the preparation method is as follows: take cobalt chloride solution, be added to equimolar
Mixed solution is obtained in the solution of sodium tungstate, it is 8 that sodium hydroxide solution is added under stiring and adjusts the pH value of mixed solution, sufficiently
Hydro-thermal reaction is carried out after mixing evenly, precipitating is after reaction filtered in hydro-thermal reaction 24 hours at 180 DEG C, it washs, drying,
Obtain wolframic acid cobalt nanometer particle.
(2) CdS/CoWO prepared by the present invention4Heterojunction composite photocatalyst, crystallization is complete, morphological rules, dispersibility
Well.
(3) using the instruments such as X-ray diffractometer (XRD), transmission electron microscope (TEM), x-ray photoelectron spectroscopy instrument to product
Structural analysis is carried out, photocatalytic degradation experiment is carried out by target dyestuff of methylene blue solution, passes through spectrophotometry
Meter measurement absorbance, to assess its photocatalytic activity.
Detailed description of the invention
Fig. 1 is prepared CdS/CoWO4Heterojunction composite photocatalyst, CdS, CoWO4XRD diffraction spectrogram.
Fig. 2 is prepared pure CoWO4Nanoparticle (a), CdS/MnWO4(b) transmission electron microscope photo and hetero-junctions transmission is high
Differentiate electromicroscopic photograph (c) and x-ray photoelectron spectroscopy figure (d).
Fig. 3 is prepared CdS/CoWO4The electron paramagnetic resonance of heterojunction composite photocatalyst is analyzed.
Fig. 4 is prepared CdS/CoWO4The visible light photocatalytic degradation methylene blue solution of heterojunction composite photocatalyst
When m- degradation rate relationship.
Fig. 5 is prepared CdS/CoWO4The degradation circulation experiment of heterojunction composite photocatalyst best sample.
Specific embodiment
Embodiment 1CdS/CoWO4The preparation of nanometer rods
Solution containing 1mmol cobalt chloride is added in the solution containing 1mmol sodium tungstate, with the hydroxide of 1mmol/L
It is 8 that sodium solution, which adjusts mixed solution ph, magnetic agitation, then at 180 DEG C after hydro-thermal reaction 24 hours, centrifugal water
The precipitating washed, and wolframic acid cobalt nanometer particle is dried to obtain under the conditions of 60 DEG C；Take the wolframic acid cobalt nanometer particle prepared molten
In deionized water, equimolar thiocarbamide and cadmium acetate is added in ultrasonic disperse under stirring conditions, controls cadmium acetate and wolframic acid
The molar ratio of cobalt is respectively 0.1,0.3,0.5,1 and 1.5, and hydro-thermal reaction at 180 DEG C of hydro-thermal reaction is carried out after being uniformly mixed
24 hours, the blue product deionized water arrived and ethyl alcohol after reaction were cleaned, filtering, 60 DEG C of drying in thermostatic drying chamber.
Embodiment 2CdS/CoWO4The phenetic analysis of heterojunction composite photocatalyst
As shown in Figure 1, it can be seen from the figure that the sample after compound has CdS and CoWO simultaneously4Characteristic peak, explanation
We have successfully prepared CdS/CoWO4Heterojunction composite photocatalyst.
As shown in Fig. 2, it can be seen that pure CoWO in (a) figure4For nano particle, size is about 30~50nm, (b) figure
In it can be seen that CdS nano particle presence, nanoparticle size is about 5~10nm, and (c) figure is prepared composite material
Transmission high resolution electron microscopy analyze result, it can be seen that CdS is attached to CoWO4The surface of nano particle, (d) map is shown in figure
Cobalt out, tungsten, sulphur, cadmium, the presence of oxygen element.
As shown in figure 3, being apparent that superoxide radical and hydroxyl after cadmium sulfide and manganese tungstate hetero-junctions illumination in figure
The presence of free radical activity species.
Embodiment 3CdS/CoWO4The visible light catalysis activity of heterojunction composite photocatalyst is tested
(1) compound concentration is the methylene blue solution of 10mg/L, and the solution prepared is placed in dark place.
(2) CdS/CoWO is weighed4Heterojunction composite photocatalyst 100mg is (as CdS and CoWO4Molar ratio be 0.1:1,
The sample that 0.3:1,0.5:1,1:1,1.5:1 are obtained is denoted as C1, C2, C3, C4, C5 respectively), it is respectively placed in photo catalysis reactor
In, the target degradation solution that 100mL step (1) is prepared is added, after 30 min of magnetic agitation photochemical catalyst to be composite is uniformly dispersed,
Water source is opened, light source carries out photocatalytic degradation experiment.
(3) every 10min draws the photocatalytic degradation liquid in reactor, and the measurement of UV-visible absorbance is used for after centrifugation.
(4) prepared nano composite photo-catalyst has excellent visible light catalysis activity as seen from Figure 4, especially
CdS and CoWO4Molar ratio be 0.3 sample degradation methylene blue activity preferably, than pure CoWO4All with the degrading activity of CdS
Want high.
(5) prepared nano composite photo-catalyst works as CdS and CoWO as seen from Figure 54Mole wave be 0.3 when light
Catalyst is still able to maintain good degrading activity after being recycled four times, and it is good to show that this composite photo-catalyst has
Stability and reusable feature.
Claims (2)
1. a kind of prepare CdS/CoWO4The method of heterojunction composite photocatalyst, it is characterised in that: by wolframic acid cobalt nanometer particle point
It dissipates and thiocarbamide and cadmium acetate is added afterwards in deionized water, carry out hydro-thermal reaction after being uniformly mixed, and then obtain CdS/CoWO4
Heterojunction composite photocatalyst, wherein CdS and and CoWO4Molar ratio be 0.3:1；The preparation side of the wolframic acid cobalt nanometer particle
Method is as follows: taking cobalt chloride solution, is added in the solution of equimolar sodium tungstate and obtains mixed solution, hydrogen-oxygen is added under stiring
Changing sodium solution to adjust the pH value of mixed solution is 8, hydro-thermal reaction is carried out after stirring, hydro-thermal reaction 24 is small at 180 DEG C
When, after reaction, precipitating is filtered, is washed, drying obtains wolframic acid cobalt nanometer particle.
2. a kind of as described in claim 1 prepare CdS/CoWO4The method of heterojunction composite photocatalyst, it is characterised in that: water
The condition of thermal response are as follows: hydro-thermal reaction 24 hours at 180 DEG C.
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| CN106735166B (en) * | 2016-12-12 | 2018-10-12 | 南京工业大学 | EuWO4(OH) nanobelt and preparation method of composite material thereof |
| CN106902808B (en) * | 2017-03-31 | 2020-02-11 | 北京宇极科技发展有限公司 | High-activity tungsten-based catalyst, preparation method and application |
| CN108262048B (en) * | 2018-01-25 | 2020-04-28 | 北京化工大学 | Carbon-coated cobalt tungstate composite material and application thereof in electrocatalytic oxygen evolution reaction |
| CN110420647A (en) * | 2019-08-20 | 2019-11-08 | 常州大学 | A kind of preparation method and application of lead tungstate/cadmium sulfide composite visible light catalyst |
| CN112547097A (en) * | 2019-09-10 | 2021-03-26 | 中国科学院宁波材料技术与工程研究所 | CoWO4Preparation method of-CdS one-dimensional nano composite photocatalyst and application of photocatalyst |
| CN111229243A (en) * | 2020-02-07 | 2020-06-05 | 辽宁大学 | Surfactant-assisted synthesis of cobalt tungstate nanoparticles and preparation method and application thereof |
| CN113231084A (en) * | 2021-05-21 | 2021-08-10 | 北京理工大学 | Copper tungstate/copper sulfide photocatalyst, preparation method and application |
| CN113713830A (en) * | 2021-09-15 | 2021-11-30 | 辽宁大学 | CoWO for degrading dye4/Ag2O composite acoustic catalyst and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457657A (en) * | 2015-12-16 | 2016-04-06 | 江苏大学 | Method for preparing CdS/MnWO4 heterojunction compound photo-catalyst |
| CN105642316A (en) * | 2015-12-22 | 2016-06-08 | 江苏大学 | Method for preparing BiOI / CdWO4 heterojunction photocatalyst |
-
2016
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457657A (en) * | 2015-12-16 | 2016-04-06 | 江苏大学 | Method for preparing CdS/MnWO4 heterojunction compound photo-catalyst |
| CN105642316A (en) * | 2015-12-22 | 2016-06-08 | 江苏大学 | Method for preparing BiOI / CdWO4 heterojunction photocatalyst |
Non-Patent Citations (2)
| Title |
|---|
| CdS及其复合光催化剂的制备、表征与光催化性能研究;汤艳峰;《万方学位论文数据库》;20150102;第27-34页 |
| Hydrothermal synthesis and electronic properties of FeWO4 and CoWO4 nanostructures;S. Rajagopal,et. al.;《Journal of Alloys and Compounds》;20091228;第493卷;第341页第2.1节，第342页左栏第1段、图2 |
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