CN104043471A - Preparation method of graphene/Ta3N5 composite photo-catalyst - Google Patents

Preparation method of graphene/Ta3N5 composite photo-catalyst Download PDF

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CN104043471A
CN104043471A CN201410312816.8A CN201410312816A CN104043471A CN 104043471 A CN104043471 A CN 104043471A CN 201410312816 A CN201410312816 A CN 201410312816A CN 104043471 A CN104043471 A CN 104043471A
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graphene
catalyst
preparation
nanofiber
composite photo
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张丽莎
李世杰
柳建设
张俊磊
黄菲
王焕丽
赵慧慧
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Donghua University
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Donghua University
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Abstract

The invention provides a preparation method of a graphene/Ta3N5 composite photo-catalyst. The preparation method comprises the following steps: preparing Ta3N5 nano fibers based on an electrostatic spinning method; then preparing a Ta3N5 short-staple composite photo-catalyst wrapped by graphene by using a solvothermal method. The composite photo-catalyst shows efficient and stable visible light photo-catalytic performance. The preparation method is simple, low in cost, and suitable for large-scale production. The prepared graphene/Ta3N5 short-staple composite photo-catalyst has efficient and stable photo-catalytic activity and is an excellent photo-catalytic material.

Description

A kind of Graphene/Ta 3n 5the preparation method of composite photo-catalyst
Technical field
The present invention relates to a kind of preparation method of conductor photocatalysis material, be specifically related to a kind of Graphene/Ta 3n 5the preparation method of composite photo-catalyst.
Background technology
Along with industrial fast development, environmental pollution has become one of important problem that society faces, has seriously restricted the mankind's sustainable development.Therefore, purification and repairing environment are the task of top priority, and scientists has been developed multiple technologies and solved problem of environmental pollution, but obtained effect is unsatisfactory.Wherein, photocatalysis technology, because the advantages such as its cost is low, nontoxic, degraded thorough, reusable edible have obtained broad research, is expected to become the following important channel that effectively solves environment and energy problem.A difficult problem that needs at present to solve is that exploitation has that catalytic activity is high, the photochemical catalyst of good stability and reusable edible.
In recent years, Graphene (G), as a nova in material with carbon element, had received the very big concern of researcher.Graphene is by carbon atom, by regular hexagon close-packed arrays, to be become the two-dimensional structure of monolayer honeycomb shape.It can form the fullerene of zero dimension by warpage, the CNT or the stacking that curl into one dimension form three-dimensional graphite; Therefore Graphene b referred to as again the elementary cell of graphite material.This special structure has been given the performance of Graphene excellence, for example large theoretical specific area (2630m 2/ g), high electron transfer rate (200000cm and under normal temperature 2/ Vs).These characteristics impel Graphene to become the desirable substrate of conductor photocatalysis material.The research of graphene-based nano-photocatalyst has obtained develop rapidly.At present, take the nano-photocatalyst that Graphene is substrate mainly comprises: (1) metal oxide is as TiO 2, ZnO, Cu 2o, SnO 2and MnO 2, (2) metal sulfide is as ZnS and CdS, and (3) other material is as Bi 2wO 6, BiVO 4, Bi 2moO 6.
In numerous semiconductor light-catalysts, Ta 3n 5it is the visible-light photocatalyst (band gap is 2.1eV) with wider visible absorption spectrum.At present, researcher has been developed the Ta of multiple nano-scale 3n 5photochemical catalyst, as having recently report by hydrolysis TaCl 5preparation Ta 2o 5nano particle, then carries out the Ta that nitrogen treatment obtains having high light catalytic activity 3n 5nano particle (Q.H.Zhang, et.al, Langmuir2004,20,9821.).In addition, Gao etc. be take acrylic amide modified polystyrene sphere and is prepared the Ta of porous as template 3n 5hollow ball (R.Gao, et.al, J.Mater.Chem.2011,21,17087.), under radiation of visible light, Ta 3n 5hollow ball photochemical catalyst to the degradation efficiency of dyestuff methylene blue (MB) apparently higher than Ta 3n 5particle.Yet, the Ta of above-mentioned preparation 3n 5photochemical catalyst is all subject to the right quick compound influence of light induced electron and hole, and then has seriously restricted its photocatalytic activity.Therefore, effectively suppress Ta 3n 5one of quick compound important channel that becomes its photocatalytic activity of raising that light induced electron and hole are right.
Prepare Graphene (G or RGO) and Ta 3n 5the research of nanofiber composite photo-catalyst not yet studies have reported that.Graphene can promote the separated of light induced electron and hole.In addition, nanofiber is compared with nano particle, the Ta of one dimension 3n 5nanofiber has good electronics and passes to ability, large specific area, and be uniformly distributed on graphene substrate, be difficult for the serious phenomenon of nanoparticle agglomerates occurs, be conducive to the raising of photocatalysis performance and the recovery of catalyst.
Summary of the invention
Problem to be solved by this invention is to provide a kind of visible light-responded Graphene/Ta 3n 5the preparation of composite photo-catalyst, can significantly improve Ta 3n 5the photocatalytic activity of catalysis material and recyclability, simultaneously can be simple, fast, prepares on a large scale this material and meet practical application.
In order to address the above problem, the invention provides a kind of Graphene/Ta 3n 5the preparation method of composite photo-catalyst, is characterized in that, concrete steps are:
Step 1): sol-gel process is prepared spinning solution: absolute ethyl alcohol and acetic acid be take to volume ratio as 3～4: 1 ratio is mixed, and then adding mass concentration is the PVP of 5～10wt% and tantalum source mix and blend 1～12h of 10wt%, obtains vitreosol;
Step 2): spinning the spinning solution: by step 1) obtaining carries out spinning, and shower nozzle distance most advanced and sophisticated and receiver is 8～20cm, applies the DC voltage of 1～20,000 volt, and the fltting speed of syringe is 0.3～1mL/h, obtains macromolecule composite nano fiber;
Step 3): preparation Ta 2o 5nanofiber: by step 2) the macromolecule composite nano fiber of collecting is placed in Muffle furnace calcining and obtains Ta 2o 5nanofiber;
Step 4): preparation Ta 3n 5nanofiber: by step 3) Ta making 2o 5nanofiber is placed in and in tube furnace, carries out high-temperature ammonolysis, after having reacted at NH 3under atmosphere, be cooled to room temperature, obtain Ta 3n 5nanofiber;
Step 5): 5～30mg graphene oxide is dissolved in to organic solvent, and ultrasonic 1～2h obtains graphene oxide dispersion liquid;
Step 6): by step 4 Ta) making 3n 5nanofiber joins step 5) in the graphene oxide dispersion liquid that makes, wherein graphene oxide and Ta 3n 5the mass ratio of nanofiber is 1: 10～1: 1000, after ultrasonic 10min, stirs 1～10h;
Step 7): by step 6 mixed solution) obtaining is transferred to and in hydrothermal reaction kettle, carries out solvent thermal reaction;
Step 8): by step 7 product) obtaining alternately rinses centrifugation each 3 times with ultra-pure water and ethanol, is then placed in 50～80 ℃ of dry 6h under baking oven vacuum and obtains Graphene/Ta 3n 5composite photo-catalyst.
Preferably, the organic solvent described step 5) is: ethanol, ethylene glycol or both mixed solvents.
Preferably, the Ta described step 6) 3n 5fiber is to adopt method of electrostatic spinning preparation.
Preferably, described step 7), solvent thermal reaction condition is: temperature is 130～220 ℃, and the reaction time is 5～25h.
Preferably, the Graphene/Ta described step 8) 3n 5composite photo-catalyst is the one dimension porous nano short fiber being wrapped up by flake graphite alkene.
Compared to existing technology, tool has the following advantages in the present invention:
1, the Graphene/Ta preparing by method of the present invention 3n 5composite photo-catalyst, not only has high photocatalytic activity, is easy to recycling simultaneously, is a kind of good conductor photocatalysis material.
2, a kind of Graphene/Ta of the present invention 3n 5the preparation of composite photo-catalyst is simple, environmental protection, cost are low, has improved Ta 3n 5the photocatalysis stability of photochemical catalyst in photocatalytic degradation environment toxic organic compound and Photocatalyzed Hydrogen Production industry.
Accompanying drawing explanation
Fig. 1 is the Graphene/Ta of preparation provided by the invention 3n 5composite photo-catalyst low power ESEM (SEM) picture;
Fig. 2 is the Graphene/Ta preparing in the present invention 3n 5composite photo-catalyst high power ESEM (SEM) picture;
Fig. 3 is the Graphene/Ta of embodiment 2 preparations 3n 5the X-ray diffraction of composite photo-catalyst (XRD) collection of illustrative plates;
Fig. 4 is the Graphene/Ta of embodiment 2 preparations 3n 5the curve map of composite photo-catalyst photocatalytic degradation methylene blue (MB) under radiation of visible light;
Fig. 5 is the Graphene/Ta of embodiment 2 preparations 3n 5the circulation photocatalytic degradation curve of composite photo-catalyst to methylene blue (MB).
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment 1
(1) sol-gel process is prepared spinning solution: absolute ethyl alcohol and acetic acid (volume ratio 4: 1) are mixed, then add the PVP of 8wt% and the ethanol tantalum of 10wt% (mass concentration after adding, lower same) mix and blend 5h, obtain vitreosol.
(2) spinning: above-mentioned spinning solution is carried out to spinning, and shower nozzle distance most advanced and sophisticated and receiver is 15cm, applies the DC voltage of 1.2 ten thousand volts, and the fltting speed of syringe is 0.3mL/h, obtains macromolecule composite nano fiber.
(3) prepare Ta 2o 5nanofiber: the macromolecule composite nano fiber of collection is placed in to Muffle furnace calcines 10h at 600 ℃.
(4) prepare Ta 3n 5nanofiber: by Ta 2o 5nanofiber is placed in and in tube furnace, carries out high-temperature ammonolysis 10h at 800 ℃, after having reacted at NH 3under atmosphere, be cooled to room temperature.
(5) 10mg graphene oxide is dissolved in 40ml ethanol, ultrasonic 1～2h obtains graphene oxide dispersion liquid;
(6) in graphene oxide dispersion liquid, add Ta 3n 5nanofiber, wherein graphene oxide and Ta 3n 5the mass ratio of nanofiber is 1: 50, and then ultrasonic 10min stirs 1～10h.
(7) then solution is transferred in hydrothermal reaction kettle, at 180 ℃, reacts 20h;
(8) product obtaining is alternately rinsed to centrifugation each 3 times with ultra-pure water and ethanol, be then placed in lower 80 ℃ of baking oven vacuum condition, dry 6h obtains Graphene/Ta 3n 5composite photo-catalyst.
Embodiment 2
(1) sol-gel process is prepared spinning solution: absolute ethyl alcohol and acetic acid (volume ratio 4: 1) are mixed, then add the PVP of 8wt% and the ethanol tantalum mix and blend 5h of 10wt%, obtain vitreosol.
(2) spinning: above-mentioned spinning solution is carried out to spinning, and shower nozzle distance most advanced and sophisticated and receiver is 15cm, applies the DC voltage of 1.2 ten thousand volts, and the fltting speed of syringe is 0.3mL/h.Obtain macromolecule composite nano fiber.
(3) Ta 2o 5nanofiber: the macromolecule composite nano fiber of collection is placed in to Muffle furnace calcines 10h at 600 ℃.
(4) Ta 3n 5nanofiber: by Ta 2o 5nanofiber is placed in and in tube furnace, carries out high-temperature ammonolysis 10h at 800 ℃, after having reacted at NH 3under atmosphere, be cooled to room temperature.
(5) 10mg graphene oxide is dissolved in 40ml ethanol, ultrasonic 1～2h obtains graphene oxide dispersion liquid;
(6) in graphene oxide dispersion liquid, add Ta 3n 5nanofiber, wherein graphene oxide and Ta 3n 5the mass ratio of nanofiber is 1: 100, and then ultrasonic 10min stirs 1～10h.
(7) then solution is transferred in hydrothermal reaction kettle, at 180 ℃, reacts 20h;
(8) product obtaining is alternately rinsed to centrifugation each 3 times with ultra-pure water and ethanol, be then placed in lower 80 ℃ of baking oven vacuum condition, dry 6h obtains Graphene/Ta 3n 5composite photo-catalyst.
X-ray powder diffraction collection of illustrative plates is used for analyzing Ta 3n 5the crystalline phase of-RGO composite photo-catalyst (as shown in Figure 3).Can find out at Ta 3n 5in the X-ray powder diffraction collection of illustrative plates of-RGO composite photo-catalyst, Ta 3n 5all diffraction maximums and the Ta of-RGO composite photo-catalyst 3n 5the diffraction maximum of fiber photocatalyst is basically identical, with Ta 3n 5standard card (JCPDS No.89-5200) fits like a glove, and is monoclinic phase Ta 3n 5(crystalline phase: monocline, space group: C2/m (12), ).Yet, do not have the diffraction maximum of typical graphite (002) or graphene oxide (001) to appear at Ta 3n 5in-RGO sample, this is possible be that the lower and lower diffraction peak intensity of Graphene of content due to Graphene causes.In X-ray powder diffraction collection of illustrative plates, do not find the peak of other impurity simultaneously, prove that sample is relatively pure.Illustrate that load RGO process is on the not impact of the crystal formation of Ta3N5.
Light-catalyzed reaction experiment is carried out in the simple and easy Photoreactor of certainly building, adopting 300W xenon lamp is light source, the optical filter of 400nm is housed, hold back the ultraviolet light that wavelength (λ) is less than 400nm, guarantee that wavelength (λ) is greater than the radiation of visible light of 400nn, by external condensation water device, reaction temperature is controlled to 20 ℃ of left and right, light-catalyzed reaction solution is poured in 250mL beaker, and it is constant that magnetic agitation rotating speed keeps in course of reaction.Photocatalytic degradation methylene blue (MB) experimental procedure is as follows: accurately measure 100mL10mg L -1methylene blue (MB) solution in beaker, add catalyst (RGO, the Ta of 55mg 3n 5fiber, Ta 3n 5the biased sample of fiber and RGO and Ta 3n 5-RGO) under dark condition, stir 3h, make catalyst and methylene blue (MB) solution reach adsorption equilibrium, then take out 2-3mL reactant liquor as first sample (being balance sample).Again glass beaker is positioned in photo catalysis reactor, every 10min, gets sample one time, by high speed centrifugation (8000r/min, 5min) by catalyst separation.After centrifugal, get supernatant, adopt the change in concentration of ultraviolet-visible absorption spectroscopy instrument (UV-Vis) assaying reaction liquid Methylene Blue (MB) dyestuff.
Circulation degradation experiment: carry out 4 circulation degradation of methylene blue (MB) solution experiments, step is as follows: the methylene blue that the catalyst of 55mg is added (MB) (100mL, 10mg L -1) in solution, after each light-catalyzed reaction 60min, catalyst separation is gone out, with ultra-pure water water, clean, dry, and then join in new methylene blue (MB) solution and react.Fig. 4 is under radiation of visible light, different catalysts (RGO, Ta 3n 5fiber, Ta 3n 5the biased sample of fiber and RGO and Ta 3n 5-RGO) the photocatalytic degradation curve to MB solution.In blank test, illumination reaction 60min, MB solution is not degraded substantially, only has 6.5% left and right MB degraded.When with Ta 3n 5when fiber is photochemical catalyst, after reaction 60min, 74.5% MB can degrade.Ta 3n 5show and Ta with RGO mechanical mixture sample 3n 5the photocatalytic activity that fiber is similar, illumination reaction 60min, to the degradation efficiency of MB only 77.3%, illustrates the simple Ta of mixing 3n 5and RGO, cannot effectively improve the photocatalytic activity of catalyst.When with Ta 3n 5when-RGO is photochemical catalyst, it shows the strongest photocatalytic activity, and illumination reaction 60min up to 93.7%, illustrates Ta to the degradation efficiency of MB 3n 5form good hetero-junctions with RGO, thereby effectively suppress the compound of light induced electron and hole.We recycle Ta 3n 5-RGO composite photo-catalyst photochemical catalyst has carried out the experiment (Fig. 5) of 4 Photocatalytic Activity for Degradation MB solution.Every secondary response is all to carry out under identical experiment condition, each illumination reaction 60min.Through 4 continuous photocatalytic degradation experiments, it becomes 86.2% to the photocatalytic degradation efficiency of MB by primary 93.7% to the 4th circulation, and Ta is described 3n 5the photocatalytic activity of-RGO composite photo-catalyst is relatively stable, does not occur obviously to reduce.
Embodiment 3
(1) sol-gel process is prepared spinning solution: absolute ethyl alcohol and acetic acid (volume ratio 4: 1) are mixed, then add the PVP of 8wt% and the ethanol tantalum mix and blend 5h of 10wt%, obtain vitreosol.
(2) spinning: above-mentioned spinning solution is carried out to spinning, and shower nozzle distance most advanced and sophisticated and receiver is 15cm, applies the DC voltage of 1.2 ten thousand volts, and the fltting speed of syringe is 0.3mL/h.Obtain macromolecule composite nano fiber.
(3) Ta 2o 5nanofiber: the macromolecule composite nano fiber of collection is placed in to Muffle furnace calcines 10h at 600 ℃.
(4) Ta 3n 5nanofiber: by Ta 2o 5nanofiber is placed in and in tube furnace, carries out high-temperature ammonolysis 10h at 800 ℃, after having reacted at NH 3under atmosphere, be cooled to room temperature.
(5) 10mg graphene oxide is dissolved in 20ml ethanol and 20ml ethylene glycol, ultrasonic 1～2h obtains graphene oxide dispersion liquid;
(6) in graphene oxide dispersion liquid, add Ta 3n 5nanofiber, wherein graphene oxide and Ta 3n 5the mass ratio of nanofiber is 1: 100, and then ultrasonic 10min stirs 1～10h.
(7) then solution is transferred in hydrothermal reaction kettle, at 160 ℃, reacts 20h;
(8) product obtaining is alternately rinsed to centrifugation each 3 times with ultra-pure water and ethanol, be then placed in lower 80 ℃ of baking oven vacuum condition, dry 6h obtains Graphene/Ta 3n 5composite photo-catalyst.
Embodiment 4
(1) sol-gel process is prepared spinning solution: absolute ethyl alcohol and acetic acid (volume ratio 4: 1) are mixed, then add the PVP of 8wt% and the ethanol tantalum mix and blend 5h of 10wt%, obtain vitreosol.
(2) spinning: above-mentioned spinning solution is carried out to spinning, and shower nozzle distance most advanced and sophisticated and receiver is 15cm, applies the DC voltage of 1.2 ten thousand volts, and the fltting speed of syringe is 0.3mL/h.Obtain macromolecule composite nano fiber.
(3) Ta 2o 5nanofiber: the macromolecule composite nano fiber of collection is placed in to Muffle furnace calcines 10h at 600 ℃.
(4) Ta 3n 5nanofiber: by Ta 2o 5nanofiber is placed in and in tube furnace, carries out high-temperature ammonolysis 10h at 800 ℃, after having reacted at NH 3under atmosphere, be cooled to room temperature.
(5) 10mg graphene oxide is dissolved in 40ml ethylene glycol, ultrasonic 1～2h obtains graphene oxide dispersion liquid;
(6) in graphene oxide dispersion liquid, add Ta 3n 5nanofiber, wherein graphene oxide and Ta 3n 5the mass ratio of nanofiber is 1: 50, and then ultrasonic 10min stirs 1～10h.
(7) then solution is transferred in hydrothermal reaction kettle, at 160 ℃, reacts 20h;
(8) product obtaining is alternately rinsed to centrifugation each 3 times with ultra-pure water and ethanol, be then placed in lower 80 ℃ of baking oven vacuum condition, dry 6h obtains Graphene/Ta 3n 5composite photo-catalyst.

Claims (5)

1. a Graphene/Ta 3n 5the preparation method of composite photo-catalyst, is characterized in that, concrete steps are:
Step 1): sol-gel process is prepared spinning solution: absolute ethyl alcohol and acetic acid be take to volume ratio as 3～4: 1 ratio is mixed, and then adding mass concentration is the PVP of 5～10wt% and tantalum source mix and blend 1～12h of 10wt%, obtains vitreosol;
Step 2): spinning the spinning solution: by step 1) obtaining carries out spinning, and shower nozzle distance most advanced and sophisticated and receiver is 8～20cm, applies the DC voltage of 1～20,000 volt, and the fltting speed of syringe is 0.3～1mL/h, obtains macromolecule composite nano fiber;
Step 3): preparation Ta 2o 5nanofiber: by step 2) the macromolecule composite nano fiber of collecting is placed in Muffle furnace calcining and obtains Ta 2o 5nanofiber;
Step 4): preparation Ta 3n 5nanofiber: by step 3) Ta making 2o 5nanofiber is placed in and in tube furnace, carries out high-temperature ammonolysis, after having reacted at NH 3under atmosphere, be cooled to room temperature, obtain Ta 3n 5nanofiber;
Step 5): 5～30mg graphene oxide is dissolved in to organic solvent, and ultrasonic 1～2h obtains graphene oxide dispersion liquid;
Step 6): in step 5 in the graphene oxide dispersion liquid) making, add step 4) Ta that makes 3n 5nanofiber, wherein graphene oxide and Ta 3n 5the mass ratio of nanofiber is 1: 10～1: 1000, after ultrasonic 10min, stirs 1～10h;
Step 7): by step 6 mixed solution) obtaining is transferred to and in hydrothermal reaction kettle, carries out solvent thermal reaction;
Step 8): by step 7 product) obtaining alternately rinses centrifugation each 3 times with ultra-pure water and ethanol, is then placed in 50～80 ℃ of dry 6h under baking oven vacuum and obtains Graphene/Ta 3n 5composite photo-catalyst.
2. Graphene/Ta as claimed in claim 1 3n 5the preparation method of composite photo-catalyst, is characterized in that, described step 5) in organic solvent be: ethanol, ethylene glycol or both mixed solvents.
3. Graphene/Ta as claimed in claim 1 3n 5the preparation method of composite photo-catalyst, is characterized in that, described step 6) in Ta 3n 5fiber is to adopt method of electrostatic spinning preparation.
4. Graphene/Ta as claimed in claim 1 3n 5the preparation method of composite photo-catalyst, is characterized in that, described step 7) in solvent thermal reaction condition be: temperature is 130～220 ℃, and the reaction time is 5～25h.
5. Graphene/Ta as claimed in claim 1 3n 5the preparation method of composite photo-catalyst, is characterized in that, described step 8) in Graphene/Ta 3n 5composite photo-catalyst is the one dimension porous nano short fiber being wrapped up by flake graphite alkene.
CN201410312816.8A 2014-07-02 2014-07-02 Preparation method of graphene/Ta3N5 composite photo-catalyst Pending CN104043471A (en)

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CN104451952A (en) * 2014-10-28 2015-03-25 大连理工大学 Reductive graphene coated cobaltosic oxide composite nano fiber and preparation process thereof
CN104815684A (en) * 2015-05-08 2015-08-05 浙江海洋学院 Ta3N5/Bi2MoO6 heterostructure fiber photocatalyst and preparation method thereof
CN104826643A (en) * 2015-05-19 2015-08-12 浙江海洋学院 Ta3N5/CdS heterojunction fiber photocatalyst and preparation method thereof
CN104888833A (en) * 2015-05-15 2015-09-09 浙江海洋学院 Ta3N5/C composite fiber photocatalyst and preparation method thereof
CN104923277A (en) * 2015-05-15 2015-09-23 浙江海洋学院 Ta3N5/Bi2WO6 heterojunction fiber photo-catalyst and preparation method therefor
CN109590005A (en) * 2018-12-14 2019-04-09 江苏大学 A kind of high electron-transporting type nucleocapsid ZnIn2S4Nanometer sheet/Ta3N5The preparation method and application of composite photo-catalyst
CN111020692A (en) * 2019-12-13 2020-04-17 中国科学院福建物质结构研究所 Porous Ta3N5Single crystal material and preparation method and application thereof

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN104451952A (en) * 2014-10-28 2015-03-25 大连理工大学 Reductive graphene coated cobaltosic oxide composite nano fiber and preparation process thereof
CN104815684A (en) * 2015-05-08 2015-08-05 浙江海洋学院 Ta3N5/Bi2MoO6 heterostructure fiber photocatalyst and preparation method thereof
CN104815684B (en) * 2015-05-08 2017-05-03 浙江海洋学院 Ta3N5/Bi2MoO6 heterostructure fiber photocatalyst and preparation method thereof
CN104888833A (en) * 2015-05-15 2015-09-09 浙江海洋学院 Ta3N5/C composite fiber photocatalyst and preparation method thereof
CN104923277A (en) * 2015-05-15 2015-09-23 浙江海洋学院 Ta3N5/Bi2WO6 heterojunction fiber photo-catalyst and preparation method therefor
CN104826643A (en) * 2015-05-19 2015-08-12 浙江海洋学院 Ta3N5/CdS heterojunction fiber photocatalyst and preparation method thereof
CN104826643B (en) * 2015-05-19 2017-06-13 浙江海洋学院 A kind of Ta3N5/ CdS hetero-junctions fiber photocatalysts and preparation method thereof
CN109590005A (en) * 2018-12-14 2019-04-09 江苏大学 A kind of high electron-transporting type nucleocapsid ZnIn2S4Nanometer sheet/Ta3N5The preparation method and application of composite photo-catalyst
CN109590005B (en) * 2018-12-14 2021-10-12 江苏大学 High electron transmission type core-shell ZnIn2S4nanosheet/Ta3N5Preparation method and application of composite photocatalyst
CN111020692A (en) * 2019-12-13 2020-04-17 中国科学院福建物质结构研究所 Porous Ta3N5Single crystal material and preparation method and application thereof

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Application publication date: 20140917