CN108117142A - Compound BiOI carbon cloths of a kind of flexibility large area TaON nanometer stick arrays and preparation method thereof - Google Patents
Compound BiOI carbon cloths of a kind of flexibility large area TaON nanometer stick arrays and preparation method thereof Download PDFInfo
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- CN108117142A CN108117142A CN201711177175.XA CN201711177175A CN108117142A CN 108117142 A CN108117142 A CN 108117142A CN 201711177175 A CN201711177175 A CN 201711177175A CN 108117142 A CN108117142 A CN 108117142A
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- China
- Prior art keywords
- taon
- bioi
- carbon
- nanometer stick
- large area
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 101
- 229910003071 TaON Inorganic materials 0.000 title claims abstract description 76
- 238000003491 array Methods 0.000 title claims abstract description 39
- 150000001875 compounds Chemical class 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 66
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 11
- 239000004917 carbon fiber Substances 0.000 claims abstract description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 109
- 238000006243 chemical reaction Methods 0.000 claims description 65
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 64
- 235000019441 ethanol Nutrition 0.000 claims description 48
- 238000004140 cleaning Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 21
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 18
- 239000012498 ultrapure water Substances 0.000 claims description 18
- 230000012010 growth Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 239000003960 organic solvent Substances 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 16
- 239000012266 salt solution Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 12
- 150000001621 bismuth Chemical class 0.000 claims description 11
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 10
- 230000004048 modification Effects 0.000 claims description 10
- 229920001223 polyethylene glycol Polymers 0.000 claims description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 9
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- 239000012298 atmosphere Substances 0.000 claims description 9
- 239000004202 carbamide Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- PXXFCBNDPUWVDY-UHFFFAOYSA-N [Ta].S(O)(O)(=O)=O Chemical compound [Ta].S(O)(O)(=O)=O PXXFCBNDPUWVDY-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 150000003481 tantalum Chemical class 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 4
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 239000011630 iodine Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 241000165940 Houjia Species 0.000 claims description 2
- BZRSOWBAZCOWRN-UHFFFAOYSA-N butan-1-ol;tantalum Chemical group [Ta].CCCCO BZRSOWBAZCOWRN-UHFFFAOYSA-N 0.000 claims description 2
- JVOQKOIQWNPOMI-UHFFFAOYSA-N ethanol;tantalum Chemical compound [Ta].CCO JVOQKOIQWNPOMI-UHFFFAOYSA-N 0.000 claims description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 2
- 239000002073 nanorod Substances 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims description 2
- KPTHYRHRERDAFO-UHFFFAOYSA-N propan-2-ol;tantalum Chemical compound [Ta].CC(C)O KPTHYRHRERDAFO-UHFFFAOYSA-N 0.000 claims description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 3
- 230000000593 degrading effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000003911 water pollution Methods 0.000 abstract description 2
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 18
- 230000015556 catabolic process Effects 0.000 description 17
- 238000006731 degradation reaction Methods 0.000 description 17
- 239000011259 mixed solution Substances 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical class [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 7
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 6
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical class [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 description 5
- 229940043267 rhodamine b Drugs 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- DRVFXCSDDCHFRL-UHFFFAOYSA-M [K]I.OCCO Chemical compound [K]I.OCCO DRVFXCSDDCHFRL-UHFFFAOYSA-M 0.000 description 1
- NRYVNQQMPSBVQK-UHFFFAOYSA-N [N].[O].[Ta] Chemical compound [N].[O].[Ta] NRYVNQQMPSBVQK-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003482 tantalum compounds Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
- B01J20/28007—Sorbent size or size distribution, e.g. particle size with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- 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
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Analytical Chemistry (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to water pollutions to handle Material Field, discloses compound BiOI carbon cloths of a kind of flexible large area TaON nanometer stick arrays and preparation method thereof.The carbon fiber-based base fabric that the carbon cloth is modified by surface, TaON nanometer stick arrays and BiOI compositions, wherein TaON nanometer rods are large area uniform array, and are vertically embedded between the fiber gap of carbon fiber-based base fabric, and BiOI is the BiOI nanometer sheets for being coated on TaON nanometer rods outer layers.The preparation method of the present invention is simple, easy large-scale production; with higher adsorption efficiency and photocatalytic activity; it can catalyzing and degrading pollutant using visible ray; property is stablized, and easily recycles, and has significant application value in the fields such as environment and the energy; it can be effective; fast purification polluted-water and killing bacterium, enrich the product market of China's ecological restoration material, promote the development of environmental protection industry (epi).
Description
Technical field
The present invention relates to water pollution processing Material Field more particularly to a kind of flexible large area TaON nanometer stick arrays are compound
BiOI carbon cloths and preparation method thereof.
Background technology
Photocatalitic Technique of Semiconductor has broad application prospects in terms of environmental improvement, and the core missions of the technology are out
Send efficient, wide spectrum driving（Visible ray）, the easy photochemical catalyst that recycles.The Tapes gaps of TaON are narrow（2.7 eV）, have wider
Visible absorption spectrum, it is considered to be a kind of preferable photocatalysis repairing environment, photocatalysis hydrogen production material.However the reality of TaON
Scale application faces two hang-ups, first, being that TaON light induced electrons and hole-recombination probability are higher, seriously constrains its light and urges
Change activity.It second, although the TaON of nano-scale has large specific surface area, is not easily recycled after use, causes resource unrestrained
Take or even secondary pollution.
The Tapes gaps of BiOI are 1.77-1.92 eV, are a kind of outstanding visible-light photocatalysts.According to band theory of solid,
BiOI and TaON, both easily by excited by visible light, it is important that the two energy level energy level can be very good to match.TaON valence band electricity
Gesture is less than the valence band potential of BiOI, meanwhile, the potential of TaON conduction bands is higher than BiOI, therefore, in visible ray（λ>400 nm）
Irradiation under, BiOI and TaON are excited, formed light induced electron（e-）And hole（h+）, wherein, the light induced electron in TaON conduction bands
（e-）It flows into BiOI conduction bands, the photohole in BiOI valence band（h+）It transits in TaON valence band, until the fermi level of the two
Until.The flow process of the carrier improves the service life in light induced electron and hole, so as to improve the photocatalytic activity of system.
The Chinese patent of Application No. 201510237951.5 discloses a kind of tantalum compound hollow nano fiber photochemical catalyst
And preparation method thereof, the Chinese patent of Application No. 102014000209766 discloses a kind of oxygen nitrogen tantalum based nonwoven photocatalysis
The preparation method of agent, both fiber photocatalysts are mainly prepared by electrostatic spinning technique, although improving catalyst
Certain effect is achieved in terms of photocatalytic activity and recycling, still, due to metallic compound fiber weakness, flexibility is poor, easily
Broken, recycling is got up there are still certain difficulty, the easy recovering effect being unable to reach as large area woven fabric.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of compound BiOI of flexible large area TaON nanometer stick arrays
Carbon cloth and preparation method thereof is vertically embedded into using TaON nanometer stick arrays between the fiber gap of carbon fiber-based base fabric,
The compound BiOI nanometer sheets of outer layer can quickly remove the organic pollution in water body under the irradiation of sunlight and kill harmful
Bacterium has the characteristics that at low cost, catalytic activity is high, property is stable, easy recycling.
The specific technical solution of the present invention is：The carbon fiber-based base fabric that the carbon cloth is modified by surface, TaON nanometer rods
Array and BiOI compositions, wherein TaON nanometer rods are large area uniform array, and are vertically embedded into the fiber in carbon fiber-based base fabric
Between gap, BiOI is the BiOI nanometer sheets for being coated on TaON nanometer rods outer layers.
On the one hand carbon cloth can be beneficial to as a kind of excellent carbon material as the flexible substrates of catalysis material
Catalyst（Such as TaON）The separation of photo-generate electron-hole, and then improve its photocatalytic activity；On the other hand, since big face is presented in it
Product flexibility cloth-like, is easily recycled.
The preparation method of the carbon cloth comprises the steps of：
1）Carbon cloth pre-processes：Carbon cloth is placed in organic solvent mixed liquor and is cleaned by ultrasonic 0.5-3h；
2）Carbon cloth is modified：Carbon cloth after cleaning is transferred in oxidation treatment liquid and impregnates 1-15h, reaction temperature 5-95
℃；
3）Carbon cloth cleans：By the carbon cloth spent glycol soaking and washing 2-10h after surface modification, then dry；
4）Prepare nanorod growth system：Carbon cloth is placed in ethyl alcohol first, is then added in tantalum salt in ethyl alcohol, Ran Houjia
Enter ammonium fluoride and polyethylene glycol, stir process 1-12h；
5）Ta2O5Nanometer stick array is grown：Above-mentioned growth system is put into reaction kettle, reacts 4-20h, reaction temperature 150-
200℃；
6）Cleaning nitridation：Above-mentioned array growth product ultra-pure water and absolute ethyl alcohol are alternately cleaned, dried in 70-90 DEG C of baking oven
After dry-cure 6-24h and urea 5-1 in mass ratio:1 uniformly mixes, and mixture is placed in tube furnace in 700-850 DEG C of down-off
For the ammonia atmosphere nitrogen treatment 2-12h of 30-150mL/min, heating rate is 2-5 DEG C/min, obtains TaON nanometer stick arrays
Carbon cloth；
7）It is prepared by iodized salt solution：Soluble salt compounded of iodine is added in organic solvent, is stirred, obtains iodized salt solution；
8）It is prepared by bismuth salt solution：Soluble bismuth salt is added in organic solvent, is stirred, obtains bismuth salt solution；
9）It is prepared by BiOI nanometer sheets：TaON nanometer stick array carbon cloths are placed in above-mentioned iodized salt solution, stir 1-3h, so
Above-mentioned bismuth salt solution is added dropwise again afterwards, persistently stirs 2-10h, wherein bismuth salt, the molar ratio of salt compounded of iodine is 1：1；
10）BiOI is modified：By step 9）The reaction system is put into reaction kettle, reacts 4-20h, reaction temperature 150-200
℃；
11）Post processing：Drying is to get required product after alternately being cleaned with ultra-pure water and absolute ethyl alcohol.
The preparation method makes TaON nanometer stick array compact growths be vertically embedded among the fiber of carbon cloth first, so
BiOI nanometer sheets uniform fold forms ternary heterojunction on TaON nanometer stick arrays surface afterwards.Three kinds of component contacts of the catalyst are filled
Divide, compound uniform, the good hetero-junctions of formation, promote light induced electron fast transfer, extend the service life of photo-generated carrier, carry
Its high visible light photocatalysis active,
Preferably, the step 1）Middle organic solvent mixed liquor is that the volume ratio of water, ethyl alcohol and acetone is 1：（1-5）：（1-5）
Mixed liquor.
Preferably, the step 2）Middle oxidation treatment liquid is the concentrated sulfuric acid that concentration is 98%, and concentration is 65% concentrated nitric acid
One or both of.
Carbon cloth is mainly by pollutant in physical action absorption water etc., after oxidation processes, surface energy
Many hydroxyls and carboxylic group are enough modified, is conducive to the chemisorbed of carbon cloth, adds the rate of adsorption and adsorbance, generally
In the case of, when carbon cloth adsorption treatment pollutant be without considering chemisorbed because carbon cloth individually handle it is dirty in water
It is first largely to adsorb, desorption is handled in Unified Set after recycling, and chemisorbed has saturation degree, and is desorbed opposite when contaminating object
Difficulty, but present invention array on carbon cloth grown Ta3N5Nanometer rods can utilize sunlight or light catalysis drop
Pollutant is solved, passes through the pollutant that chemical action is adsorbed and catalyst contact probability bigger, it is easier to and catalyst reaction, reaction
Pollutant is desorbed automatically after terminating, and adsorption site is released, and can continue absorption degradation other contaminant molecules.
Preferably, the step 4）Middle tantalum salt is butanol tantalum, in ethanol tantalum, tantalic chloride, isopropanol tantalum, sulfuric acid tantalum
It is one or more of.
Preferably, the it is characterized in that, step 4）The concentration of middle tantalum salt is 5-20 mg/mL, and the concentration of ammonium fluoride is
0.05-0.3 mg/mL, the concentration of polyethylene glycol is 10-20mg/mL.
Preferably, the step 5）With step 10）The compactedness of middle reaction kettle is 70-90%.
Preferably, the step 5）In need temperature programming, heating rate is 0.2-4 DEG C/min.
Preferably, the step 7）With step 8）Middle organic solvent is ethylene glycol or volume ratio is 1：（0.5-2）Second
The mixed liquor of alcohol and ethylene glycol.
Preferably, the step 7）With step 8）Middle iodized salt solution be concentration 5-20mmol/L liquor kalii iodide, bismuth
Salting liquid is the bismuth nitrate solution of concentration 5-20mmol/L.
It is compared with the prior art, the beneficial effects of the invention are as follows：The preparation method of the present invention is simple, easy large-scale production,
The large-scale application for being TaON photochemical catalysts in environment remediation and Photocatalyzed Hydrogen Production industry provides effective way；The present invention
With higher adsorption efficiency and photocatalytic activity, using visible ray can catalyzing and degrading pollutant, property stablizes, easily returns
It receives, there is significant application value in the fields such as environment and the energy, can be effective, fast purification polluted-water and killing bacterium are rich
The product market of rich China's ecological restoration material, promotes the development of environmental protection industry (epi).
Description of the drawings
Fig. 1 is the scanning electron microscope of the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays prepared in the present invention
（SEM）Figure；
Fig. 2 is the scanning electron microscope of the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays prepared in the present invention
（SEM）Figure；
Fig. 3 is the X-ray diffraction of the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays prepared in the present invention
（XRD）Figure；
Fig. 4 is that the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays that prepare are under visible light illumination in the present invention
Photocatalytic degradation rhodamine（Rh.B）Graph；
Fig. 5 is that the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays that prepare are under visible light illumination in the present invention
To rhodamine（Rh.B）5 circulation photocatalytic degradation graphs.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
Carbon cloth is placed in water/ethanol/acetone=1：5：It is cleaned by ultrasonic 3h in 5 organic solvent mixed liquor；By the carbon after cleaning
Fiber cloth, which is transferred in 98% concentrated sulfuric acid, impregnates 1h, and reaction temperature is 95 DEG C；Carbon cloth spent glycol after surface modification is soaked
Bubble cleaning 10h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, 20mg/mL tantalic chlorides are then added in into ethyl alcohol
In, then add in 0.05mg/mL ammonium fluorides and 20mg/mL polyethylene glycol, stir process 12h；Above-mentioned growth system is put into instead
It answers in kettle, the compactedness of reaction kettle is 70%, and heating rate is 4 DEG C/min, and reaction temperature is 200 DEG C, reacts 20h；By above-mentioned battle array
Row growth product ultra-pure water and absolute ethyl alcohol alternately cleaning 3 times, in 90 DEG C of baking ovens after drying and processing 6h, 5 are pressed with urea:1
Mass ratio uniformly mix, mixture is placed in the tube furnace of 2 DEG C/min of heating rate, in 700 DEG C of down-off 120mL/min's
Ammonia atmosphere nitrogen treatment 12h, obtains TaON nanometer stick array carbon cloths；TaON nanometer stick array carbon cloths are placed in
In the potassium iodide ethylene glycol solution of the 20mmol/L of 40mL, 3h is stirred, then again by the bismuth nitrate second of 40mL concentration 20mmol/L
Glycol solution is added dropwise, and persistently stirs 10h；Above-mentioned solution is put into reaction kettle, the compactedness of reaction kettle is 70%, heating
Rate is 4 DEG C/min, and reaction temperature is 200 DEG C, reacts 20h；By the alternately cleaning 3 of above-mentioned product ultra-pure water and absolute ethyl alcohol
It is secondary, up to required product after drying.
Embodiment 2
Carbon cloth is placed in water/ethanol/acetone=1：1：It is cleaned by ultrasonic 0.5h in 1 organic solvent mixed liquor；After cleaning
Carbon cloth, which is transferred in 65% concentrated nitric acid, impregnates 15h, and reaction temperature is 50 DEG C；By the second two of the carbon cloth after surface modification
Alcohol soaking and washing 2h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, 5mg/mL ethanol tantalums are then added in into ethyl alcohol
In, then add in 0.1mg/mL ammonium fluorides and 10mg/mL polyethylene glycol, stir process 1h；Above-mentioned growth system is put into reaction
In kettle, the compactedness of reaction kettle is 90%, and heating rate is 0.2 DEG C/min, and reaction temperature is 150 DEG C, reacts 4h；By above-mentioned battle array
Row growth product ultra-pure water and absolute ethyl alcohol alternately cleaning 4 times, in 70 DEG C of baking ovens drying and processing for 24 hours after, with urea press 1:1
Mass ratio uniformly mix, mixture be placed in heating rate be 5 DEG C/min tube furnace in, in 850 DEG C of down-off 30mL/min
Ammonia atmosphere nitrogen treatment 3h, obtain TaON nanometer stick array carbon cloths；TaON nanometer stick array carbon cloths are placed in
The volume ratio of the 5mmol/L potassium iodide of 40mL is 1：In 0.5 ethyl alcohol and ethylene glycol mixed solution, 1h is stirred, then again will
The volume ratio of 40mL concentration 5mmol/L bismuth nitrates is 1：0.5 ethyl alcohol and ethylene glycol mixed solution is added dropwise, lasting to stir
2h；Above-mentioned solution is put into reaction kettle, the compactedness of reaction kettle is 90%, and heating rate is 0.2 DEG C/min, and reaction temperature is
150 DEG C, react 4h；Above-mentioned product ultra-pure water and absolute ethyl alcohol are alternately cleaned 4 times, up to required product after drying.
Embodiment 3
Carbon cloth is placed in water/ethanol/acetone=1：3：It is cleaned by ultrasonic 2h in 2 organic solvent mixed liquor；By the carbon after cleaning
Fiber cloth is transferred in 98% concentrated sulfuric acid and 65% concentrated nitric acid impregnates 3h respectively, and reaction temperature is 5 DEG C；By the carbon after surface modification
Fiber cloth spent glycol soaking and washing 5h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, then by 10mg/mL
Sulfuric acid tantalum is added in ethyl alcohol, then adds in 0.3mg/mL ammonium fluorides and 15mg/mL polyethylene glycol, stir process 6h；By above-mentioned life
Long system is put into reaction kettle, and the compactedness of reaction kettle is 80%, and heating rate is 2 DEG C/min, and reaction temperature is 175 DEG C, reaction
10h；By alternately cleaning 5 times of above-mentioned array growth product ultra-pure water and absolute ethyl alcohol, the drying and processing 12h in 80 DEG C of baking ovens
Afterwards, 3 are pressed with urea:1 mass ratio uniformly mixes, and mixture is placed in the tube furnace that heating rate is 4 DEG C/min, in 800 DEG C
The ammonia atmosphere nitrogen treatment 8h of down-off 150mL/min, obtains TaON nanometer stick array carbon cloths；By TaON nanometer rods battle arrays
The volume ratio that row carbon cloth is placed in the potassium iodide of the 10mmol/L of 40mL is 1:In 2 ethyl alcohol and ethylene glycol mixed solution, stir
Mix 2h, then again by the volume ratio of the bismuth nitrate of 40mL concentration 10mmol/L be 1:2 ethyl alcohol and ethylene glycol mixed solution is dropwise
It adds in, persistently stirs 6h；Above-mentioned solution is put into reaction kettle, the compactedness of reaction kettle is 80%, and heating rate is 2 DEG C/min,
Reaction temperature is 175 DEG C, reacts 10h；Above-mentioned product ultra-pure water and absolute ethyl alcohol are alternately cleaned 5 times, up to institute after drying
Need product.
Embodiment 4
Carbon cloth is placed in water/ethanol/acetone=0.5：1：It is cleaned by ultrasonic 0.5h in 1 organic solvent mixed liquor；After cleaning
Carbon cloth be transferred in 65% concentrated nitric acid and impregnate 3h, reaction temperature is 50 DEG C；By the second two of the carbon cloth after surface modification
Alcohol soaking and washing 2h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, 5mg/mL sulfuric acid tantalum is then added in into ethyl alcohol
In, then add in 0.1mg/mL ammonium fluorides and 15mg/mL polyethylene glycol, stir process 2h；Above-mentioned growth system is put into reaction
In kettle, the compactedness of reaction kettle is 85%, and heating rate is 0.5 DEG C/min, and reaction temperature is 160 DEG C, reacts 10h；By above-mentioned battle array
Row growth product ultra-pure water and absolute ethyl alcohol alternately cleaning 4 times, in 70 DEG C of baking ovens after drying and processing 10h, 3 are pressed with urea:1
Mass ratio uniformly mix, mixture be placed in heating rate in 3 DEG C/min tube furnaces in the ammonia of 750 DEG C of down-off 90mL/min
Atmosphere encloses nitrogen treatment 5h, obtains TaON nanometer stick array carbon cloths；TaON nanometer stick array carbon cloths are placed in
In the 20mL ethyl alcohol and 25mL ethylene glycol mixed solutions of 5mmol/L potassium iodide, 2h is stirred, then again by 5mmol/L bismuth nitrates
20mL ethyl alcohol and 20mL ethylene glycol mixed solutions are added dropwise, and persistently stir 6h；Above-mentioned solution is put into reaction kettle, reaction kettle
Compactedness for 85%, heating rate is 2 DEG C/min, and reaction temperature is 150 DEG C, reacts 12h；By above-mentioned product ultra-pure water and
Absolute ethyl alcohol alternately cleaning 4 times, up to required product after drying.
The compound BiOI carbon cloths pattern of flexible large area TaON nanometer stick arrays prepared in the present embodiment is ternary shell
Core fibre structure, i.e. outermost layer are BiOI nanometer sheets, and centre is TaON nanometer stick arrays, and innermost layer is carbon fiber.
The compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays of the present embodiment are in single rhodamine B degradation
（Rh.B）In experiment, 60 min of light-catalyzed reaction, degradation efficiency reaches 87.7%, in five Xun Huan degradation Rh.B experiments, last
Secondary degradation efficiency reaches 72.3%.
Embodiment 5
Carbon cloth is placed in water/ethanol/acetone=1：1：It is cleaned by ultrasonic 1h in 1 organic solvent mixed liquor；By the carbon after cleaning
Fiber cloth, which is transferred in 65% concentrated nitric acid, impregnates 3h, and reaction temperature is 50 DEG C；Carbon cloth spent glycol after surface modification is soaked
Bubble cleaning 2h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, then adds in 5mg/mL sulfuric acid tantalum in ethyl alcohol,
Then 0.1mg/mL ammonium fluorides and 15mg/mL polyethylene glycol, stir process 2h are added in；Above-mentioned growth system is put into reaction kettle
In, the compactedness of reaction kettle is 85%, and heating rate is 1 DEG C/min, and reaction temperature is 160 DEG C, reacts 10h；Above-mentioned array is given birth to
Long product ultra-pure water and absolute ethyl alcohol alternately cleaning 4 times, in 70 DEG C of baking ovens after drying and processing 10h, 3 are pressed with urea:1 matter
For amount than uniformly mixing, it is in the ammonia atmosphere of 750 DEG C of down-off 90mL/min in 3 DEG C/min tube furnaces that mixture, which is placed in heating rate,
Nitrogen treatment 5h is enclosed, obtains TaON nanometer stick array carbon cloths；TaON nanometer stick array carbon cloths are placed in 10mmol/L
In the 20mL ethyl alcohol and 25mL ethylene glycol mixed solutions of potassium iodide, 2h is stirred, then again by the 20mL second of 10mmol/L bismuth nitrates
Alcohol and 20mL ethylene glycol mixed solutions are added dropwise, and persistently stir 6h；Above-mentioned solution is put into reaction kettle, the filling of reaction kettle
It spends for 85%, heating rate is 1 DEG C/min, and reaction temperature is 150 DEG C, reacts 12h；By above-mentioned product ultra-pure water and anhydrous second
Alcohol alternately cleaning 4 times, up to required product after drying.
The compound BiOI carbon cloths pattern of flexible large area TaON nanometer stick arrays prepared in the present embodiment is ternary shell
Core fibre structure, i.e. outermost layer are BiOI nanometer sheets, and centre is TaON nanometer stick arrays, and innermost layer is carbon fiber, scanning electricity
As depicted in figs. 1 and 2, X ray diffracting spectrum is as shown in Figure 3 for mirror collection of illustrative plates.
The compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays of the present embodiment are in single rhodamine B degradation
（Rh.B）In experiment, 60 min of light-catalyzed reaction, degradation efficiency reaches 100%, as shown in figure 4, can be seen that according to Fig. 4 and single
Only carbon cloth, TaON are compared with BiOI, rhodamine B in load TaON nanometer rods and the carbon cloth system of BiOI with
Time content significantly reduces, it was demonstrated that catalytic activity of the invention is high, good degrading effect.
In five Xun Huan degradation Rh.B experiments, the degradation efficiency of last time reaches 92.1%, as shown in Figure 5.
Embodiment 6
Carbon cloth is placed in water/ethanol/acetone=1：1：It is cleaned by ultrasonic 1h in 1 organic solvent mixed liquor；By the carbon after cleaning
Fiber cloth, which is transferred in 65% concentrated nitric acid, impregnates 3h, and reaction temperature is 50 DEG C；Carbon cloth spent glycol after surface modification is soaked
Bubble cleaning 2h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, then adds in 5mg/mL sulfuric acid tantalum in ethyl alcohol,
Then 0.1mg/mL ammonium fluorides and 15mg/mL polyethylene glycol, stir process 2h are added in；Above-mentioned growth system is put into reaction kettle
In, the compactedness of reaction kettle is 85%, and heating rate is 1 DEG C/min, and reaction temperature is 160 DEG C, reacts 10h；Above-mentioned array is given birth to
Long product ultra-pure water and absolute ethyl alcohol alternately cleaning 4 times, in 70 DEG C of baking ovens after drying and processing 10h, 3 are pressed with urea:1 matter
For amount than uniformly mixing, it is in the ammonia atmosphere of 750 DEG C of down-off 90mL/min in 3 DEG C/min tube furnaces that mixture, which is placed in heating rate,
Nitrogen treatment 5h is enclosed, obtains TaON nanometer stick array carbon cloths；TaON nanometer stick array carbon cloths are placed in 15mmol/L
In the 20mL ethyl alcohol and 25mL ethylene glycol mixed solutions of potassium iodide, 2h is stirred, then again by the 20mL second of 15mmol/L bismuth nitrates
Alcohol and 20mL ethylene glycol mixed solutions are added dropwise, and persistently stir 6h；Above-mentioned solution is put into reaction kettle, the filling of reaction kettle
It spends for 85%, heating rate is 1 DEG C/min, and reaction temperature is 160 DEG C, reacts 12h；By above-mentioned product ultra-pure water and anhydrous second
Alcohol alternately cleaning 4 times, up to required product after drying.
The compound BiOI carbon cloths pattern of flexible large area TaON nanometer stick arrays prepared in the present embodiment is ternary shell
Core fibre structure, i.e. outermost layer are BiOI nanometer sheets, and centre is TaON nanometer stick arrays, and innermost layer is carbon fiber.
The compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays of the present embodiment are in single rhodamine B degradation
（Rh.B）In experiment, 60 min of light-catalyzed reaction, degradation efficiency reaches 93.4%, in five Xun Huan degradation Rh.B experiments, last
Secondary degradation efficiency reaches 79.2%.
Embodiment 7
Carbon cloth is placed in water/ethanol/acetone=1：1：It is cleaned by ultrasonic 1h in 1 organic solvent mixed liquor；By the carbon after cleaning
Fiber cloth, which is transferred in 65% concentrated nitric acid, impregnates 3h, and reaction temperature is 50 DEG C；Carbon cloth spent glycol after surface modification is soaked
Bubble cleaning 2h, is then dried；Carbon cloth is placed in 85mL ethyl alcohol first, then adds in 5mg/mL sulfuric acid tantalum in ethyl alcohol,
Then 0.1mg/mL ammonium fluorides and 15mg/mL polyethylene glycol, stir process 2h are added in；Above-mentioned growth system is put into reaction kettle
In, the compactedness of reaction kettle is 85%, and heating rate is 1 DEG C/min, and reaction temperature is 160 DEG C, reacts 10h；Above-mentioned array is given birth to
Long product ultra-pure water and absolute ethyl alcohol alternately cleaning 4 times, in 70 DEG C of baking ovens after drying and processing 10h, 3 are pressed with urea:1 matter
For amount than uniformly mixing, it is in the ammonia atmosphere of 750 DEG C of down-off 90mL/min in 3 DEG C/min tube furnaces that mixture, which is placed in heating rate,
Nitrogen treatment 5h is enclosed, obtains TaON nanometer stick array carbon cloths；TaON nanometer stick array carbon cloths are placed in 20mmol/L
In the 20mL ethyl alcohol and 25mL ethylene glycol mixed solutions of potassium iodide, 2h is stirred, then again by the 20mL second of 20mmol/L bismuth nitrates
Alcohol and 20mL ethylene glycol mixed solutions are added dropwise, and persistently stir 6h；Above-mentioned solution is put into reaction kettle, the filling of reaction kettle
It spends for 85%, heating rate is 1 DEG C/min, and reaction temperature is 150 DEG C, reacts 12h；By above-mentioned product ultra-pure water and anhydrous second
Alcohol alternately cleaning 4 times, up to required product after drying.
The compound BiOI carbon cloths pattern of flexible large area TaON nanometer stick arrays prepared in the present embodiment is ternary shell
Core fibre structure, i.e. outermost layer are BiOI nanometer sheets, and centre is TaON nanometer stick arrays, and innermost layer is carbon fiber.
The compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays of the present embodiment are in single rhodamine B degradation
（Rh.B）In experiment, 60 min of light-catalyzed reaction, degradation efficiency reaches 80.7%, in five Xun Huan degradation Rh.B experiments, last
Secondary degradation efficiency reaches 62.3%.
Raw materials used in the present invention, equipment is the common raw material, equipment of this field unless otherwise noted；In the present invention
Method therefor is the conventional method of this field unless otherwise noted.
The above is only presently preferred embodiments of the present invention, not the present invention imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent transformation that technical spirit makees above example, still fall within the technology of the present invention side
The protection domain of case.
Claims (10)
1. a kind of compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays, it is characterised in that：The carbon cloth is by table
The carbon fiber-based base fabric that face is modified, TaON nanometer stick arrays and BiOI compositions, wherein TaON nanometer rods are large area uniform array,
And be vertically embedded between the fiber gap of carbon fiber-based base fabric, BiOI is the BiOI nanometers for being coated on TaON nanometer rods outer layers
Piece.
2. a kind of preparation method of the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays described in claim 1,
It is characterized in that, the preparation method comprises the steps of：
1）Carbon cloth pre-processes：Carbon cloth is placed in organic solvent mixed liquor and is cleaned by ultrasonic 0.5-3h；
2）Carbon cloth is modified：Carbon cloth after cleaning is transferred in oxidation treatment liquid and impregnates 1-15h, reaction temperature 5-95
℃；
3）Carbon cloth cleans：By the carbon cloth spent glycol soaking and washing 2-10h after surface modification, then dry；
4）Prepare nanorod growth system：Carbon cloth is placed in ethyl alcohol first, is then added in tantalum salt in ethyl alcohol, Ran Houjia
Enter ammonium fluoride and polyethylene glycol, stir process 1-12h；
5）Ta2O5Nanometer stick array is grown：Above-mentioned growth system is put into reaction kettle, reacts 4-20h, reaction temperature 150-
200℃；
6）Cleaning nitridation：Above-mentioned array growth product ultra-pure water and absolute ethyl alcohol are alternately cleaned, dried in 70-90 DEG C of baking oven
After dry-cure 6-24h and urea 5-1 in mass ratio:1 uniformly mixes, and mixture is placed in tube furnace in 700-850 DEG C of down-off
For the ammonia atmosphere nitrogen treatment 2-12h of 30-150mL/min, heating rate is 2-5 DEG C/min, obtains TaON nanometer stick arrays
Carbon cloth；
7）It is prepared by iodized salt solution：Soluble salt compounded of iodine is added in organic solvent, is stirred, obtains iodized salt solution；
8）It is prepared by bismuth salt solution：Soluble bismuth salt is added in organic solvent, is stirred, obtains bismuth salt solution；
9）It is prepared by BiOI nanometer sheets：TaON nanometer stick array carbon cloths are placed in above-mentioned iodized salt solution, stir 1-3h, so
Above-mentioned bismuth salt solution is added dropwise again afterwards, persistently stirs 2-10h, wherein bismuth salt, the molar ratio of salt compounded of iodine is 1：1；
10）BiOI is modified：By step 9）The reaction system is put into reaction kettle, reacts 4-20h, reaction temperature 150-200
℃；
11）Post processing：Drying is to get required product after alternately being cleaned with ultra-pure water and absolute ethyl alcohol.
3. the preparation method of the compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays as claimed in claim 2,
It is characterized in that, the step 1）Middle organic solvent mixed liquor is that the volume ratio of water, ethyl alcohol and acetone is 1：（1-5）：（1-5）It is mixed
Close liquid.
4. the preparation method of the compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays as claimed in claim 2,
It is characterized in that, the step 2）Middle oxidation treatment liquid is the concentrated sulfuric acid that concentration is 98%, and concentration is one kind in 65% concentrated nitric acid
Or two kinds.
5. the preparation method of the compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays as claimed in claim 2,
It is characterized in that, the step 4）Middle tantalum salt is butanol tantalum, ethanol tantalum, tantalic chloride, isopropanol tantalum, one kind in sulfuric acid tantalum or several
Kind.
6. the preparation method of the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays as described in claim 2 or 5,
It is characterized in that, the step 4）The concentration of middle tantalum salt is 5-20 mg/mL, and the concentration of ammonium fluoride is 0.05-0.3 mg/mL, is gathered
The concentration of ethylene glycol is 10-20mg/mL.
7. the preparation method of the compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays as claimed in claim 2,
It is characterized in that, the step 5）With step 10）The compactedness of middle reaction kettle is 70-90%.
8. the preparation method of the compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays as claimed in claim 2,
It is characterized in that, the step 5）In need temperature programming, heating rate is 0.2-4 DEG C/min.
9. the preparation method of the compound BiOI carbon cloths of flexibility large area TaON nanometer stick arrays as claimed in claim 2,
It is characterized in that, the step 7）With step 8）Middle organic solvent is ethylene glycol or volume ratio is 1：（0.5-2）Ethyl alcohol and second two
The mixed liquor of alcohol.
10. the preparation side of the compound BiOI carbon cloths of flexible large area TaON nanometer stick arrays as described in claim 2 or 9
Method, which is characterized in that the step 7）With step 8）Middle iodized salt solution is the liquor kalii iodide of concentration 5-20mmol/L, and bismuth salt is molten
Liquid is the bismuth nitrate solution of concentration 5-20mmol/L.
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