CN108408776A - A kind of pucherite photo-anode film and preparation method thereof - Google Patents

A kind of pucherite photo-anode film and preparation method thereof Download PDF

Info

Publication number
CN108408776A
CN108408776A CN201810523892.1A CN201810523892A CN108408776A CN 108408776 A CN108408776 A CN 108408776A CN 201810523892 A CN201810523892 A CN 201810523892A CN 108408776 A CN108408776 A CN 108408776A
Authority
CN
China
Prior art keywords
doping
thin film
pucherite
film
bismuth thin
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.)
Pending
Application number
CN201810523892.1A
Other languages
Chinese (zh)
Inventor
李磊
杨中正
谷龙艳
李品将
雷岩
李知声
王之俊
郑直
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuchang University
Original Assignee
Xuchang University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuchang University filed Critical Xuchang University
Priority to CN201810523892.1A priority Critical patent/CN108408776A/en
Publication of CN108408776A publication Critical patent/CN108408776A/en
Priority to CN201811468149.7A priority patent/CN109440126B/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G31/00Compounds of vanadium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/88Molybdenum
    • B01J23/887Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8877Vanadium, tantalum, niobium or polonium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/33Electric or magnetic properties
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00Compounds of nickel
    • C01G53/04Oxides; Hydroxides
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/50Processes
    • C25B1/55Photoelectrolysis
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/82Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/84Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/85Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by XPS, EDX or EDAX data
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

A kind of high-performance pucherite photo-anode film of present invention offer and preparation method thereof.Photo-anode film is made of the NiO superthin section catalyst of the Fe2O3 doping on the pucherite thin-film light-absorbing layer of gradient molybdenum doping and its surface.Preparation process includes:1) in FTO electro-conductive glass deposition on substrate bismuth thin films;2) undoped vanadic acid bismuth thin film is obtained by the reaction with vanadyl acetylacetonate in bismuth thin film under 450 degrees Celsius;3) it uses vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum to be doped processing to vanadic acid bismuth thin film, obtains the vanadic acid bismuth thin film of gradient molybdenum doping;4) Ni (OH) for adulterating Fe2Superthin section is spin-coated on the vanadic acid bismuth thin film of molybdenum doping, and after heat treatment obtaining load has the pucherite photo-anode film of NiO catalyst of Fe2O3 doping.The pucherite photo-anode film of the easy environmental protection of the method for the present invention, preparation effectively promotes separation of charge and transmission, and has good visible absorption performance and the aqueous energy of photoelectric decomposition.

Description

A kind of pucherite photo-anode film and preparation method thereof
Technical field
The present invention relates to inorganic non-metallic material manufacturing technology field, specially a kind of pucherite photo-anode film.
Background technology
Global energy crisis and problem of environmental pollution are the great challenges that sustainable development faces.With science and technology Development is expected to become the important technological means solved these problems using solar photoelectric hydrogen production by water decomposition technology.Light The selectable material of electrolysis water hydrogen manufacturing has very much, such as common metal oxide semiconductor, nitride or sulfide.Can Under light-exposed irradiation, semiconductor can excite, detach charge, and redox reaction further occurs to prepare hydrogen.Pucherite (BiVO4) it is used as good visible light-responded material, it has nontoxic, inexpensive, band gap suitable (2.4eV), property stabilization etc. excellent Point, usually can be as the light anode material in hydrogen production by water decomposition system.In addition, pucherite material is in degradation of contaminant, the sun The fields such as energy battery are also widely used.
Pucherite method for manufacturing thin film has chemical solution deposition, sol-gel method, biomimetic method, electrochemical deposition at present Method, hydro-thermal method, sputtering method etc..Patent CN 201310033856.4 is using Bi (NO3)3·5H2O and NH3VO3With citric acid, second Acid, ethanol amine are secondary solvent, are prepared into precursor solution, vanadium is obtained on conducting glass substrate using chemical solution deposition Sour bismuth thin film.Patent CN201210107811.2 discloses a kind of sol-gel method on FTO to obtain the skill of vanadic acid bismuth thin film Art.Patent CN103173753A uses Bi (NO3)3·5H2It is prepared by the acetylacetone,2,4-pentanedione solution of O- acetic acid solutions and vanadyl acetylacetonate Pucherite colloid, be spin-coated on ITO electro-conductive glass, a nanometer vanadic acid bismuth thin film obtained by roasting.Patent CN201710203262.1 adjusts NH using nitric acid, boric acid4VO3With Bi (NO3)3·5H2O mixed liquors, pass through electrostatic on substrate It adsorbs self assembly and laminated assembling technology forms amorphous BiVO4Film.Patent 201610033268.4 uses vanadium oxide and oxidation Bismuth mixing target grows to obtain large area vanadic acid bismuth thin film by rf magnetron sputtering.Patent CN201610033270.1 is then adopted It is target with bismuth metal and vanadium metal, magnetically controlled DC sputtering is carried out in oxidizing atmosphere and obtains vanadic acid bismuth thin film.Patent CN 201610977924.6 first deposit bismuth oxyiodide (BiOI) film on the glass substrate using electro-deposition method, then utilize hydro-thermal Method obtains vanadic acid bismuth thin film with ammonium metavanadate solution reacting drying at 180 DEG C.(the Science 2014,343,990- such as Kim 994) BiOI films are obtained using electrochemical deposition method, it is small then under 450 degree to react 2 with it by vanadyl acetylacetonate solution When obtain undoped pucherite light anode.Patent CN201710550371.0 discloses a kind of three-electrode method on electro-conductive glass Deposition obtains bismuth oxyiodide, then obtains pucherite with vanadyl acetylacetonate pyroreaction;Further obtained using electrochemical deposition To ferronickel oxyhydroxide.Patent CN201710497490.4 discloses a kind of method that hydro-thermal method prepares pucherite, and passes through Fast electrochemical sedimentation deposits iron-based double-metal hydroxide on surface, and iron-based double-metal hydroxide/vanadic acid is prepared Bismuth light anode material.Patent CN201710235859.4 on conductive substrates surface by preparing Mo:BiVO4Film, then in table If face prepares dried layer Mo:BiVO4Film obtains Mo:BiVO4/Co:BiVO4Optoelectronic pole.
The preparation of above-mentioned pucherite photo-anode film is all substantially undoped or single doped structure, moreover, pucherite is still So have the shortcomings that, such as separation of charge/transmission is slower, charge mobility is low, poor oxidation kinetics etc..
Invention content
The present invention provides a kind of high-performance pucherite photo-anode films and preparation method thereof.The photo-anode film is by ladder Spend the pucherite thin-film light-absorbing layer of molybdenum doping and its NiO superthin section catalyst composition of the Fe2O3 doping on surface.Prepared Film crystal quality is high, uniform, good with substrate adhesion.
The present invention can be achieved through the following technical solutions:
A kind of pucherite photo-anode film, the membrane structure include light absorbing layer, and the light absorbing layer upper surface is equipped with The lower surface of oxygen-separating catalyst layer, the light absorbing layer is equipped with substrate, and the light absorbing layer is that the pucherite of gradient molybdenum doping is thin Film, the oxygen-separating catalyst layer are the NiO ultrathin nanometer pieces of Fe2O3 doping, and the substrate is FTO electro-conductive glass.The gradient molybdenum is mixed Miscellaneous vanadic acid bismuth thin film is high surface levels molybdenum doping.The doping concentration of the vanadic acid bismuth thin film of the gradient molybdenum doping is rubbed for 5% That ratio.
A kind of preparation method of pucherite photo-anode film, includes the following steps,
The first step is first deposited one layer of metal bismuth thin film in FTO Conducting Glass by vacuum sputtering;
Second step, the preparation of undoped vanadic acid bismuth thin film:On above-mentioned metal bismuth thin film, even application contains levulinic The DMSO solution of ketone vanadyl, being to slowly warm up to 450 degrees Celsius after dry, the reaction was continued 4~6 hours, after natural cooling, then rubs through 1 You/liter NaOH solution impregnate 20~30 minutes and distilled water flushing, dry to obtain undoped vanadic acid bismuth thin film;
Third walks, the preparation of the pucherite photo-anode film of gradient molybdenum doping:On above-mentioned undoped vanadic acid bismuth thin film Even application contains the DMSO solution of vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum, and it is Celsius to be to slowly warm up to 500 after dry Degree reaction 2~4 hours, NaOH solution after natural cooling, then through 1 mol/L is impregnated 20~30 minutes and distilled water flushing, dries in the air The dry vanadic acid bismuth thin film for obtaining gradient molybdenum doping;
4th step, the Ni (OH) of Fe doping2The preparation of dispersion liquid:Take the Ni (NO of 0.1 mol/L3)2Solution is added dropwise To in the NaOH solution of 1 mol/L and stir 10 minutes, obtained Ni (OH)2Precipitation, by repeatedly centrifuging, washing redisperse To obtaining Ni (OH) in distilled water2Dispersion liquid;Under ultrasonic disperse state, 1 mol/L Fe is added dropwise again to above-mentioned dispersion liquid (NO3)3Solution continues ultrasound and carries out within 2 hours being centrifuged repeatedly again after ion exchange, wash to remove excess ions, is re-dispersed into The Ni (OH) of Fe doping is obtained in distilled water2Dispersion liquid;
5th step, load have the pucherite photo-anode film of the NiO nanometer sheet catalyst of ultra-thin Fe doping:Take 50 microlitres of Fe The Ni (OH) of doping2Dispersion liquid is spin-coated on the vanadic acid bismuth thin film of gradient molybdenum doping, then passes through 300 DEG C of heat treatments in air 2 hours, obtained load had the pucherite photo-anode film of the NiO nanometer sheet catalyst of ultra-thin Fe doping.
Preferential, the cleaning step of FTO Conducting Glass, the cleaning process are first carried out before the above-mentioned first step For:Using 1:1:Mixture and distilled water the difference supersound washing of 1 hydrogen peroxide-ammonium hydroxide-distilled water 2~3 hours, then in sky It spontaneously dries, is dried, clean FTO conductive substrates in gas.
It is preferential, in the above-mentioned first step using vacuum ion sputtering instrument in FTO Conducting Glass sputtering sedimentation Metal bismuth thin film, and pass through crystal microbalance monitoring and controlling film thickness.
Preferential, the sputtering current of metal bismuth thin film is 25 milliamperes in the above-mentioned first step, and sputtering time is 30 seconds, the gold The film thickness for belonging to bismuth thin film is 40~120 nanometers.
Preferential, the metal bismuth thin film of the DMSO solution coated with vanadyl acetylacetonate is 80~100 in above-mentioned second step It is dry in DEG C baking oven to be placed on 450 DEG C of Muffle furnaces and react 4~6 hours;It is coated with vanadyl acetylacetonate and two in above-mentioned third step The drying in 80~100 DEG C of baking ovens of the vanadic acid bismuth thin film of the DMSO solution of acetylacetone,2,4-pentanedione molybdenum oxide is placed in 500 DEG C of Muffle furnaces Reaction 2~4 hours.
Preferential, the molar ratio of above-mentioned second step and vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum in third step is equal It is 5%.
Preferential, the NiO nanometer sheet catalyst of ultra-thin Fe doping, spin coating speed are applied in above-mentioned 5th step using spin-coating method 3000 revs/min of rate, spin-coating time are 30 seconds.
Chemical reagent used in the present invention is all that analysis is pure, is purchased from Shanghai pharmaceutical reagent company or AlfaAesar company. Characterization method used in the present invention:Confocal microscope (Reinshaw inViaReflex) is used for the crystal of judgement sample Eigen vibration confirms that the crystal structure of film is pucherite with x-ray diffractometer (Brooker D8Advance, copper target), uses X- The doping of X-ray photoelectron spectroscopy X instrument (the silent winged generation that Escalab 250Xi of match) detection Mo elements, with UV Diffuse Reflectance Spectroscopy (peace Prompt human relations Cary 5000) characterization film visible absorption performance, with high-resolution-ration transmission electric-lens (FEI Tecnai G2F20) confirm The crystal structure of the NiO of Fe doping.The nickel oxide of Fe2O3 doping is confirmed with atomic force microscope (Brooker Dimension Icon) For super-thin sheet-shaped structure, the performance of optoelectronic pole is proved with light current -voltage curve.
Pucherite photo-anode film of the present invention and preparation method thereof has following advantageous effect:
The first, the present invention synthesizes the vanadic acid bismuth thin film of molybdenum doping using two-step method:The first step synthesizes to obtain undoped with vanadic acid Bismuth thin film, second step synthesize to obtain the vanadic acid bismuth thin film of gradient molybdenum doping, the film crystal quality prepared by this kind of two-step method is high, Uniformly, good with substrate adhesion, there is preferable PhotoelectrocatalytiPerformance Performance compared to previous molybdenum doping vanadic acid bismuth thin film.
The second, the present invention uses vacuum ion sputtering technology, and target is bismuth source, the bismuth metal film thickness deposited is controllable, It uniformly, and can large area preparation.
The ion exchange technique of third, ultrasonic wave added of the present invention can prepare the Ni of ultra-thin Fe2O3 doping (OH)2Nanometer sheet.
4th, the present invention modifies the NiO ultrathin nanometer piece catalyst of Fe2O3 doping, side using spin-coating method on vanadic acid bismuth thin film Method simply ensures efficiently separating and transmitting in charge again.
5th, the vanadic acid bismuth thin film of the gradient molybdenum doping of the NiO modifications of the Fe2O3 doping prepared by the present invention is in alkaline solution In with higher photoelectrocatalysis decompose water activity.
Description of the drawings
Attached drawing 1 is the layer structure chart of pucherite photo-anode film of the present invention;
Attached drawing 2 is the optical photograph figure of 1,2,3 product of the embodiment of the present invention;
Attached drawing 3 is the XRD diagram of 1 metal bismuth thin film of the embodiment of the present invention;
Attached drawing 4 is the XRD diagram of 1 undoped vanadic acid bismuth thin film of the embodiment of the present invention;
Attached drawing 5 is the XRD diagram of the vanadic acid bismuth thin film of 2 uniform molybdenum doping of the embodiment of the present invention;
Attached drawing 6 is the XRD diagram of the vanadic acid bismuth thin film of 3 gradient molybdenum doping of the embodiment of the present invention;
Attached drawing 7 is the Raman figure of the vanadic acid bismuth thin film of 3 gradient molybdenum doping of the embodiment of the present invention;
Attached drawing 8 is the xps energy spectrum figure of the vanadic acid bismuth thin film of 3 gradient molybdenum doping of the embodiment of the present invention;
Attached drawing 9 is the UV-vis figures of the vanadic acid bismuth thin film of 3 gradient molybdenum doping of the embodiment of the present invention;
Attached drawing 10 is the SEM figures of the vanadic acid bismuth thin film of 3 gradient molybdenum doping of the embodiment of the present invention;
Attached drawing 11 is the Ni (OH) of 4 Fe2O3 doping of present example2It is super with the NiO of Fe2O3 doping
The XRD diagram of thin nanometer sheet;
Attached drawing 12 is the high-resolution-ration transmission electric-lens figure of the NiO of 4 Fe2O3 doping of the embodiment of the present invention;
Attached drawing 13 is the atomic force microscopy figure of the NiO of 4 Fe2O3 doping of the embodiment of the present invention;
14 present invention of attached drawing implements the performance chart of the light anode oxidation water of 1,2,3 products;
15 present invention of attached drawing implements the performance chart of the light anode oxidation water of 3,4,5,6 products.
Specific implementation mode
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to embodiment and attached drawing Product of the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of pucherite photo-anode film, the membrane structure include light absorbing layer, the light absorbing layer Upper surface is equipped with oxygen-separating catalyst layer, and the lower surface of the light absorbing layer is equipped with substrate, and the light absorbing layer is gradient molybdenum doping Vanadic acid bismuth thin film, the oxygen-separating catalyst layer be Fe2O3 doping NiO ultrathin nanometer pieces, the substrate be FTO electro-conductive glass.Institute The vanadic acid bismuth thin film for stating gradient molybdenum doping is high surface levels molybdenum doping.The doping of the vanadic acid bismuth thin film of the gradient molybdenum doping is dense Degree is 5% molar ratio.
Steps are as follows for undoped pucherite film preparation:
1) use high vacuum ion sputtering instrument in drying, clean length and width for the FTO electro-conductive glass bases of 2 centimetres of 1 cm x On piece sputters bismuth thin film;Sputtering current is 25 milliamperes, and sputtering time is 30 seconds, and sputtering thickness is 20-120 nanometers, and preferably 40 receive Rice.
2) 50 microlitres of DMSO solutions containing the vanadyl acetylacetonate that molar ratio is 0.5 mol/L are dropped evenly into gold Belong on bismuth thin film, it is dry in 80~100 DEG C of baking ovens to be placed on Muffle furnace and be warming up to 450 DEG C with 2 DEG C/min of speed and keep 4 hours, after natural cooling, then brown film passed through distilled water and rushes through 1 mol/L NaOH solution immersion treatment 20-30 minutes It washes away except foreign ion, dry to obtain undoped vanadic acid bismuth thin film.Its optical photograph is shown in No. 1 film in attached drawing 2.Fig. 3 is institute The XRD diagram of the bismuth metal of deposition, wherein F are labeled as the SnO of F doping2Substrate.Fig. 4 is prepared undoped vanadic acid bismuth thin film, The XRD illustrates that film is monocline BiVO4Structure.
In Figure 13 example 1 be this sample prepared by light anode aoxidize water performance curve, electrolyte used be 1 mole/ Rise NaOH solution.
Embodiment 2
Similar to Example 1 to use sputtering method deposited metal bismuth thin film, above, 50 microlitres of content ratios of even application are 19/1 vanadyl acetylacetonate and the molar ratio of diacetyl acetone oxidation molybdenum are the DMSO solution of 0.5 mol/L, by with implementation Example 1 such as similarly dries, is heat-treated, impregnating, cleaning, drying at the processes, obtains the vanadic acid bismuth thin film of uniform molybdenum doping.Its optics shines Piece is shown in No. 2 films in attached drawing 2.Fig. 5 is the vanadic acid bismuth thin film of uniform molybdenum doping, and all XRD diffraction maximums can be classified as respectively BiVO4Mutually SnO is adulterated with F2Substrate.Example 2 is the performance curve of the light anode oxidation water prepared by this sample in Figure 13.
Embodiment 3
The pucherite film preparation step of gradient molybdenum doping:On the 1 undoped vanadic acid bismuth thin film of gained of embodiment, it is added dropwise The molar ratio of vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum that 50 microlitres of content ratios are 19/1 is 0.5 mol/L DMSO solution;Dry be placed in Muffle furnace is first warming up to 450 DEG C with 2 DEG C/min of rates and heats up again in 80~100 DEG C of baking ovens 2 hours are kept the temperature to 500 DEG C and at 500 DEG C;After natural cooling, gained brown film is through 1 mol/L NaOH solution immersion treatment 20 ~30 minutes, and through distilled water flushing removal foreign ion, dry to obtain the vanadic acid bismuth thin film of gradient molybdenum doping.Its optical photograph See No. 3 films in attached drawing 2.
Fig. 6 is the vanadic acid bismuth thin film of gradient molybdenum doping, and all XRD diffraction maximums can be attributed to BiVO respectively4Mutually mixed with F Miscellaneous SnO2Substrate.Fig. 7 illustrates sample characteristic Raman signal (325,368,711 and 826cm-1) be molybdenum doping pucherite knot Structure.Fig. 8 is that xps energy spectrum illustrates to mainly contain Bi, Mo and V element in film.Fig. 9 UV-vis can calculate the vanadium of gradient molybdenum doping About 500 nanometers of sour bismuth ABSORPTION EDGE, band gap about 2.48eV.Figure 10 show for gradient molybdenum doping pucherite film surface and Cross-section cutaway view.Example 3 is the performance curve of the light anode oxidation water prepared by this sample in Figure 14, shows that this sample ratio is not mixed The pucherite of miscellaneous or uniform molybdenum doping has the aqueous energy of preferable photoelectric decomposition.
Embodiment 4
The preparation process of the NiO ultrathin nanometer pieces of Fe doping:Under magnetic stirring by the Ni of 25 milliliter of 0.1 mol/L (NO3)2Solution is added dropwise in the NaOH solution of 6 milliliter of 1 mol/L and continues stirring 10 minutes, obtained light green color Ni (OH)2Precipitation;The precipitation removes foreign ion by repeatedly centrifugation, washing, and Ni is obtained in redisperse to 20 milliliters of distilled water (OH)2Dispersion liquid;Under the conditions of ultrasonic disperse, to above-mentioned Ni (OH)2300 microlitres of 1M Fe (NO are added in dispersion liquid3)3It is molten Liquid continues ultrasound and carries out ion exchange in 2 hours;Gained brown precipitate removes excess ions through being centrifuged repeatedly, washing, and divides again It is scattered to the Ni (OH) that Fe doping is obtained in distilled water2Dispersion liquid (solid content 120ppm);The Ni for taking 50 microlitres of Fe to adulterate (OH)2Dispersion liquid is with 3000 revs/min of spin speed, the vanadium of spin coating 30 seconds obtained gradient molybdenum dopings in embodiment 3 On sour bismuth thin film, then the film passes through 300 DEG C and is heat-treated 2 hours in air, and obtaining load has the NiO of Fe doping is ultra-thin to urge The pucherite photo-anode film of the gradient molybdenum doping of agent.
Figure 11 bottom curves are the Ni (OH) of Fe2O3 doping2The XRD of ultrathin nanometer piece;Upper graph is that the NiO of Fe doping is super The XRD diagram of thin nanometer sheet, structure are cube centroid structure NiO.Figure 12, which is the bright Fe-NiO of high-resolution-ration transmission electric-lens chart, to be had Highly crystalline structure.Figure 13 is atomic force microscopy figure, shows that the two-dimensional of sample is 40-80 nanometers, thickness is 2-5 nanometers.
In Figure 15 example 4 be this sample prepared by light anode aoxidize water performance curve, electrolyte used be 1 mole/ Rise NaOH solution.
Embodiment 5
This example provides a kind of side of the NiO ultrathin nanometer pieces modification pucherite photo-anode film preparation of a small amount of Fe2O3 doping Method, specific implementation process with embodiment 3, the difference is that:The Ni (OH) of used Fe doping2Dispersion liquid it is a concentration of 12ppm。
Example 5 is the performance curve of the light anode oxidation water prepared by this sample in Figure 15, illustrates NiO points of Fe- doping When a concentration of 12ppm of dispersion liquid, the pucherite for the gradient molybdenum doping modified has the aqueous energy of highest photoelectric decomposition.
Embodiment 6
This example provides a kind of side of the NiO ultrathin nanometer pieces modification pucherite photo-anode film preparation of a small amount of Fe2O3 doping Method, specific implementation process with embodiment 3, the difference is that:The Ni (OH) of used Fe doping2Dispersion liquid it is a concentration of 1.2ppm。
Example 6 is the performance curve of the light anode oxidation water prepared by this sample in Figure 15, illustrates NiO points of Fe- doping When a concentration of 1.2ppm of dispersion liquid, the photoelectric decomposition of the pucherite for the gradient molybdenum doping modified is aqueous to improve unobvious.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the present invention in any form;It is all The those of ordinary skill of the industry can be shown in by specification attached drawing and described above and swimmingly implement the present invention;But it is all Those skilled in the art without departing from the scope of the present invention, using disclosed above technology contents The equivalent variations for a little variation, modification and evolution made are the equivalent embodiment of the present invention;Meanwhile it is all according to the present invention Substantial technological to the variation, modification and evolution etc. of any equivalent variations made by above example, still fall within the present invention's Within the protection domain of technical solution.

Claims (10)

1. a kind of pucherite photo-anode film, it is characterised in that:The membrane structure includes light absorbing layer, on the light absorbing layer Surface is equipped with oxygen-separating catalyst layer, and the lower surface of the light absorbing layer is equipped with substrate, and the light absorbing layer is gradient molybdenum doping Vanadic acid bismuth thin film, the oxygen-separating catalyst layer are the NiO ultrathin nanometer pieces of Fe2O3 doping, and the substrate is FTO electro-conductive glass.
2. pucherite photo-anode film according to claim 1, it is characterised in that:The pucherite of the gradient molybdenum doping is thin Film is high surface levels molybdenum doping.
3. pucherite photo-anode film according to claim 2, it is characterised in that:The pucherite of the gradient molybdenum doping is thin The doping concentration of film is 5% molar ratio.
4. the preparation method of the pucherite photo-anode film described in a kind of any one of claims 1 to 3 claim, feature exist In:Include the following steps,
The first step is first deposited one layer of metal bismuth thin film in FTO Conducting Glass by vacuum sputtering;
Second step, the preparation of undoped vanadic acid bismuth thin film:On above-mentioned metal bismuth thin film, even application contains acetylacetone,2,4-pentanedione oxygen The DMSO solution of vanadium, being to slowly warm up to 450 degrees Celsius after dry, the reaction was continued 4~6 hours, after natural cooling, then through 1 mole/ The NaOH solution risen impregnates 20~30 minutes and distilled water flushing, dries to obtain undoped vanadic acid bismuth thin film;
Third walks, the preparation of the pucherite photo-anode film of gradient molybdenum doping:On above-mentioned undoped vanadic acid bismuth thin film uniformly The DMSO solution containing vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum is applied, 500 degrees Celsius are to slowly warm up to after dry instead It answers 2~4 hours, after natural cooling, then NaOH solution through 1 mol/L is impregnated 20~30 minutes and distilled water flushing, dries To the vanadic acid bismuth thin film of gradient molybdenum doping;
4th step, the Ni (OH) of Fe doping2The preparation of dispersion liquid:Take the Ni (NO of 0.1 mol/L3)2Solution is added dropwise to 1 and rubs You/liter NaOH solution in and stir 10 minutes, obtained Ni (OH)2Precipitation, by repeatedly centrifuging, washing redisperse to distillation Ni (OH) is obtained in water2Dispersion liquid;Under ultrasonic disperse state, 1 mol/L Fe (NO are added dropwise again to above-mentioned dispersion liquid3)3Solution, Continue ultrasound to carry out within 2 hours being centrifuged repeatedly again after ion exchange, wash to remove excess ions, is re-dispersed into distilled water and obtains The Ni (OH) adulterated to Fe2Dispersion liquid;
5th step, load have the pucherite photo-anode film of the NiO nanometer sheet catalyst of ultra-thin Fe doping:Take 50 microlitres of Fe doping Ni (OH)2Dispersion liquid is spin-coated on the vanadic acid bismuth thin film of gradient molybdenum doping, and it is small then to pass through 300 DEG C of heat treatments 2 in air When, obtained load has the pucherite photo-anode film of the NiO nanometer sheet catalyst of ultra-thin Fe doping.
5. the preparation method of pucherite photo-anode film according to claim 4, it is characterised in that:The above-mentioned first step it The preceding cleaning step for also having a step FTO Conducting Glass, the cleaning process are:Using 1:1:1 hydrogen peroxide-ammonium hydroxide-steaming Mixture and distilled water the difference supersound washing of distilled water 2~3 hours, then spontaneously dries in air.
6. the preparation method of pucherite photo-anode film according to claim 5, it is characterised in that:It is adopted in the above-mentioned first step It is vacuum ion sputtering instrument sputtering sedimentation metal bismuth thin film in FTO Conducting Glass, and is supervised by crystal microbalance Observing and controlling made membrane thickness.
7. the preparation method of pucherite photo-anode film according to claim 6, it is characterised in that:It is golden in the above-mentioned first step The sputtering current for belonging to bismuth thin film is 25 milliamperes, and sputtering time is 30 seconds, and the film thickness of the metal bismuth thin film is received for 40~120 Rice.
8. the preparation method of pucherite photo-anode film according to claim 4, it is characterised in that:It is applied in above-mentioned second step It is covered with the drying in 80~100 DEG C of baking ovens of the metal bismuth thin film of the DMSO solution of vanadyl acetylacetonate and is placed on 450 DEG C of Muffle furnaces Reaction 4~6 hours;
The vanadic acid bismuth thin film of the DMSO solution coated with vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum exists in above-mentioned third step Dry be placed in 500 DEG C of Muffle furnaces is reacted 2~4 hours in 80~100 DEG C of baking ovens.
9. the preparation method of pucherite photo-anode film according to claim 4, it is characterised in that:Above-mentioned second step and The molar ratio of vanadyl acetylacetonate and diacetyl acetone oxidation molybdenum in three steps is 5%.
10. the preparation method of pucherite photo-anode film according to claim 4, it is characterised in that:In above-mentioned 5th step The NiO nanometer sheet catalyst of ultra-thin Fe doping is applied using spin-coating method, 3000 revs/min of spin coating rate, spin-coating time is 30 seconds.
CN201810523892.1A 2018-05-28 2018-05-28 A kind of pucherite photo-anode film and preparation method thereof Pending CN108408776A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201810523892.1A CN108408776A (en) 2018-05-28 2018-05-28 A kind of pucherite photo-anode film and preparation method thereof
CN201811468149.7A CN109440126B (en) 2018-05-28 2018-12-03 Bismuth vanadate photo-anode film and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810523892.1A CN108408776A (en) 2018-05-28 2018-05-28 A kind of pucherite photo-anode film and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108408776A true CN108408776A (en) 2018-08-17

Family

ID=63140706

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201810523892.1A Pending CN108408776A (en) 2018-05-28 2018-05-28 A kind of pucherite photo-anode film and preparation method thereof
CN201811468149.7A Expired - Fee Related CN109440126B (en) 2018-05-28 2018-12-03 Bismuth vanadate photo-anode film and preparation method thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201811468149.7A Expired - Fee Related CN109440126B (en) 2018-05-28 2018-12-03 Bismuth vanadate photo-anode film and preparation method thereof

Country Status (1)

Country Link
CN (2) CN108408776A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109742341A (en) * 2018-12-20 2019-05-10 桂林理工大学 The method that glucose auxiliary prepares the porous NiO electrode material of high performance Fe doping two dimension
CN110164699A (en) * 2019-05-16 2019-08-23 北京化工大学 A kind of Fe2O3 doping nickel oxide being pyrolyzed using hydrotalcite as presoma and its application in photocatalytic fuel cell
CN110449172A (en) * 2019-09-11 2019-11-15 天津大学 The activity regulation method of photoelectrocatalysis semiconductor material
CN113398944A (en) * 2021-05-24 2021-09-17 苏州科技大学 Composite material of bismuth vanadate surface modified nickel cobaltate spinel and preparation and application thereof
CN115007137A (en) * 2022-07-14 2022-09-06 南大恩洁优环境技术(江苏)股份公司 Catalyst for purifying dioxin and preparation method thereof
CN116283287A (en) * 2023-03-20 2023-06-23 西北工业大学 Quantum sheet anchored bismuth vanadate film, preparation method and application

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110227478A (en) * 2019-07-10 2019-09-13 西北师范大学 Cobalt/cobalt oxide/pucherite composite material method is prepared by spin coating calcining
CN110714187B (en) * 2019-10-16 2021-08-06 中国科学院上海硅酸盐研究所 Vanadium ion vacancy type bismuth vanadate photo-anode film and preparation method thereof
CN112717917B (en) * 2019-10-29 2022-08-02 中国科学院宁波材料技术与工程研究所 Method for preparing bismuth vanadate film by two-step spray pyrolysis and application
CN113136602A (en) * 2021-04-19 2021-07-20 西北师范大学 Preparation and application of bismuth vanadate/Vo-FeNiOOH composite photo-anode

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105463396A (en) * 2016-01-19 2016-04-06 新疆中兴能源有限公司 Method for preparing photocatalytic water splitting bismuth vanadate thin film through DC magnetron sputtering
CN106345481B (en) * 2016-08-17 2018-11-02 上海交通大学 The vanadic acid bismuth thin film and its preparation method and application of superthin layer di-iron trioxide modification
CN106435635B (en) * 2016-09-21 2019-04-12 浙江大学 A kind of preparation method and application of efficient photoelectricity treater catalytic decomposition aquatic products oxygen electrode
CN107354480B (en) * 2017-06-19 2019-03-01 汕头大学 A kind of metal oxide/NiPi optical anode material and its preparation
CN107354476A (en) * 2017-06-27 2017-11-17 青岛鲁润中科环境工程技术开发有限公司 The preparation method and applications of iron-based double-metal hydroxide/pucherite light anode
CN107324441B (en) * 2017-07-07 2019-08-20 黄河科技学院 Ferronickel oxyhydroxide modifies pucherite optoelectronic pole and preparation method thereof, application

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109742341A (en) * 2018-12-20 2019-05-10 桂林理工大学 The method that glucose auxiliary prepares the porous NiO electrode material of high performance Fe doping two dimension
CN109742341B (en) * 2018-12-20 2022-05-31 桂林理工大学 Method for preparing Fe-doped two-dimensional porous NiO electrode material with high lithium storage performance under assistance of glucose
CN110164699A (en) * 2019-05-16 2019-08-23 北京化工大学 A kind of Fe2O3 doping nickel oxide being pyrolyzed using hydrotalcite as presoma and its application in photocatalytic fuel cell
CN110449172A (en) * 2019-09-11 2019-11-15 天津大学 The activity regulation method of photoelectrocatalysis semiconductor material
CN110449172B (en) * 2019-09-11 2022-05-17 天津大学 Method for regulating and controlling activity of photoelectrocatalysis semiconductor material
CN113398944A (en) * 2021-05-24 2021-09-17 苏州科技大学 Composite material of bismuth vanadate surface modified nickel cobaltate spinel and preparation and application thereof
CN113398944B (en) * 2021-05-24 2022-02-22 苏州科技大学 Composite material of bismuth vanadate surface modified nickel cobaltate spinel and preparation and application thereof
CN115007137A (en) * 2022-07-14 2022-09-06 南大恩洁优环境技术(江苏)股份公司 Catalyst for purifying dioxin and preparation method thereof
CN115007137B (en) * 2022-07-14 2023-07-28 南大恩洁优环境技术(江苏)股份公司 Catalyst for purifying dioxin and preparation method thereof
CN116283287A (en) * 2023-03-20 2023-06-23 西北工业大学 Quantum sheet anchored bismuth vanadate film, preparation method and application
CN116283287B (en) * 2023-03-20 2024-04-05 西北工业大学 Quantum sheet anchored bismuth vanadate film, preparation method and application

Also Published As

Publication number Publication date
CN109440126B (en) 2020-10-09
CN109440126A (en) 2019-03-08

Similar Documents

Publication Publication Date Title
CN108408776A (en) A kind of pucherite photo-anode film and preparation method thereof
Masuda et al. Deposition mechanism of anatase TiO2 on self-assembled monolayers from an aqueous solution
Meulenkamp Mechanism of WO 3 Electrodeposition from Peroxy‐Tungstate Solution
Bertus et al. Influence of spray pyrolysis deposition parameters on the optoelectronic properties of WO3 thin films
Poznyak et al. Effect of electron and hole acceptors on the photoelectrochemical behaviour of nanocrystalline microporous TiO2 electrodes
CN109569630A (en) A kind of pucherite composite material preparation loading nickel cobalt hydrotalcite nano particle and the application in photoelectricity water oxygen
Shinagawa et al. Controllable growth orientation of Ag2O and Cu2O films by electrocrystallization from aqueous solutions
Wei et al. Oxidation resistance and electrical properties of anodically electrodeposited Mn–Co oxide coatings for solid oxide fuel cell interconnect applications
CN109092319B (en) WO (WO)3/BiVO4Ternary system composite material of/FeOOH and preparation method and application thereof
CN106348616B (en) A kind of preparation method of SiO2/TiO2 antireflective coating
CN113818043B (en) Bismuth vanadate-metal organic complex composite photoelectrode and preparation method and application thereof
CN108611653B (en) Magnetic nanoparticle-loaded bismuth vanadate composite material and preparation and application thereof
Wang et al. Bi 2 Se 3 sensitized TiO 2 nanotube films for photogenerated cathodic protection of 304 stainless steel under visible light
Zhang et al. Enhanced photoelectrochemical oxidation of water over Ti-doped α-Fe2O3 electrodes by surface electrodeposition InOOH
CN108545961A (en) A kind of preparation method of nickel oxide nano pipe
Karuppuchamy et al. A novel one-step electrochemical method to obtain crystalline titanium dioxide films at low temperature
CN105806911A (en) ZnO-Au@CdS photoelectric composite material as well as preparation method and application thereof
CN106622290A (en) ZnO-CdS composite material and preparation method and application of ZnO-CdS composite material
CN102417204A (en) Method for synthesizing lead sulfide (PbS) film through chemical in-situ reaction of solution
Supanantin et al. Improvement ITO/WO3 photo anode electrode fabrication using electrodeposition technique for highly efficient photoelectrocatalytic insecticide degradation
CN108274014B (en) Multi-branch-shaped nano alloy and preparation method thereof
Nitta et al. One-step direct fabrication of phase-pure Cu2O films via the spin-spray technique using a mixed alkaline solution
Kang et al. Insights on enhancing piezocatalytic performance of Bi2WO6@ PDA homojunction from phase coexistence and electron transfer mediators
CN110993355B (en) Preparation method of two-dimensional titanium carbide substrate layer optimized alpha-phase iron oxide photo-anode
CN105948525A (en) Super-hydrophilic and wear-resistant zinc oxide/titanium dioxide film self-cleaning glass and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180817