CN109772355A - Amorphous FeOOH/alum acid bismuth composite photocatalyst material preparation method - Google Patents
Amorphous FeOOH/alum acid bismuth composite photocatalyst material preparation method Download PDFInfo
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- acid bismuth
- amorphous feooh
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- alum acid
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- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 40
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910002588 FeOOH Inorganic materials 0.000 title claims abstract description 39
- 239000002253 acid Substances 0.000 title claims abstract description 36
- 229940037003 alum Drugs 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 24
- 239000011259 mixed solution Substances 0.000 claims abstract description 11
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 229910002915 BiVO4 Inorganic materials 0.000 claims description 25
- 229910052742 iron Inorganic materials 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000006555 catalytic reaction Methods 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 7
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910003206 NH4VO3 Inorganic materials 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- -1 iron ion Chemical class 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 12
- 238000007146 photocatalysis Methods 0.000 abstract description 9
- 239000003426 co-catalyst Substances 0.000 abstract description 7
- 239000002178 crystalline material Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 238000005119 centrifugation Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 abstract 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 abstract 1
- 239000001099 ammonium carbonate Substances 0.000 abstract 1
- DPSWNBLFKLUQTP-UHFFFAOYSA-N bismuth vanadium Chemical compound [V].[Bi] DPSWNBLFKLUQTP-UHFFFAOYSA-N 0.000 abstract 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 239000010953 base metal Substances 0.000 description 3
- 230000005518 electrochemistry Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006303 photolysis reaction Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910003153 β-FeOOH Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-N hydroperoxyl Chemical compound O[O] OUUQCZGPVNCOIJ-UHFFFAOYSA-N 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- Catalysts (AREA)
Abstract
The invention belongs to photochemical catalyst preparation fields, more particularly to amorphous FeOOH/alum acid bismuth composite photocatalyst material preparation method, amorphous FeOOH/alum acid bismuth processing step is as follows: synthesizing pucherite using hydro-thermal method, using the pucherite of synthesis as substrate, pucherite is put into the mixed solution of iron chloride and ammonium hydrogen carbonate and is stirred, it is dried after centrifugation, products therefrom is amorphous FeOOH/composite bismuth vanadium photocatalyst.The present invention, due to itself special structure of amorphous, lacks orderly atomic arrangement using non-crystalline material as co-catalyst, has narrower forbidden bandwidth.These features make the surface of catalyst generate more defects, provide more active sites, and light abstraction width expands, and then improves photocatalysis performance.
Description
Technical field
The invention belongs to photochemical catalyst preparation field more particularly to amorphous FeOOH/alum acid bismuth composite photocatalyst materials
Preparation method.
Background technique
Photochemical catalyzing is one of important method of solar energy production.The current co-catalyst for photocatalytic water has Pt,
The noble metals such as Au, Pt/g-C3N4 and noble metal composite improve although photocatalysis performance is opposite, and huge cost also limits
The space of its application.Therefore, sight is transferred on base metal co-catalyst by people.Such as: Fe, Co, Ni, Cu,
Zn and carbon-based material (CoS, Ni (OH) 2, NiS, Cu2O, ZnIn2S4 and carbon quantum dot etc.).But these co-catalysts are all
It is the raising photocatalysis performance in the form of crystal, and equally also reveals these co-catalysts and be strongly depend on crystal structure and shape
The size of state, especially crystallinity and particle.Therefore, sight is transferred to amorphous co-catalyst by people.
In nature, non-crystalline material is more more common than crystalline material.Due to its complicated internal structure of non-crystalline material
Cause the great interest of more and more people.Up to the present, amorphous catalysts have been applied to various fields, including electrification
, optical electro-chemistry, biochemistry etc..In document Applied Catalysis B:Environmental, 2018,222:35-
In 43, Liu et al. people modifies base metal g-C3N4 with amorphous NiO, carries out photodissociation aquatic products hydrogen under visible light illumination.As a result table
It is bright, it compares with the pure g-C3N4 and crystal NiO g-C3N4 photochemical catalyst modified, the g-C3N4 photochemical catalyst of amorphous NiO modification
Photocatalysis effect is remarkably reinforced.
FeOOH has a variety of crystal phases, in electrochemistry and optical electro-chemistry field as base metal hydroxy compounds
It is studied extensively by scholar.Wherein since non crystalline structure has narrower forbidden bandwidth, lack orderly atomic arrangement, has more
Defect.These features can make its light abstraction width wider, promote electronics transfer and provide more active sites, and then enhance light
Catalytic performance.
Summary of the invention
The present invention is directed to provide in place of overcome the deficiencies in the prior art it is a kind of can effectively improve photocatalysis performance, forbidden band is wide
Spend narrow, light abstraction width is big, the preparation of the amorphous FeOOH more than electronics transfer active sites/alum acid bismuth composite photocatalyst material
Method.
In order to solve the above technical problems, the present invention is implemented as follows:
A kind of preparation method of amorphous FeOOH/alum acid bismuth catalysis material, the specific steps are as follows:
One, the preparation of BiVO4 catalyst
(1) it weighs bismuth source and is dissolved in HNO3 solution and ethylene glycol mixed solution obtained solution A；
(2) it weighs NH4VO3 and is dissolved in 0.1~0.4g template solution obtained B solution；
(3) solution A is added dropwise in B solution, adjusts pH=2~9 using NaOH solution, is stirred solution, obtains
BiVO4 catalyst precarsor；
(4) step (3) acquired solution is moved into autoclave, baking oven is put into after sealing, carry out hydro-thermal reaction, natural cooling
To room temperature, washed dry 2h~20h is finely ground after cooling, obtains BiVO4 catalyst.
Two, amorphous FeOOH/alum acid bismuth composite photocatalyst material preparation
BiVO4 catalyst fines obtained by step 1, stirring are added in the mixed solution of source of iron and NH4HCO3；By mixed solution
Centrifugal treating is carried out, drying is after washing to get purpose product amorphous FeOOH/alum acid bismuth composite photocatalyst material.
As a preferred embodiment, in step 1 of the present invention, bismuth source uses five water bismuth nitrates or bismuth oxide.
Further, in step 1 of the present invention, template uses neopelex, cetyl trimethyl
Ammonium bromide or dodecyl sodium sulfate.
Further, in step 2 of the present invention, source of iron uses FeCl3 6H2O or FeCl3.
Further, in step 1 of the present invention, hydrothermal temperature be the C of 110 C~200, the hydro-thermal time be 6h~
30h。
Further, in step 2 of the present invention, the molar ratio of source of iron and NH4HCO3 are 1~5:1.
Further, BiVO4 catalyst powder obtained by step 1 is added in the present invention in the mixed solution of source of iron and NH4HCO3
End is stirred 1~20 hour；Mixed solution is subjected to centrifugal treating, and is dried after being washed with distilled water more than three times in 40~90oC
Dry 2~20 hours to get purpose product amorphous FeOOH/alum acid bismuth composite photocatalyst material.
Further, amorphous FeOOH of the present invention and BiVO4 mass ratio are 0.5%~11%.
Further, the concentration of iron ion is 0.001mol/L~0.022mol/L in source of iron of the present invention.
The present invention is using alum acid bismuth as substrate, after its outer surface amorphous FeOOH film, finds amorphous hydroxyl oxygen
Photocatalysis performance can effectively be improved by changing iron/alum acid bismuth.The present invention utilizes synthesis amorphous FeOOH/alum acid bismuth co-catalyst
Photocatalytic water experiment is carried out, the experimental results showed that amorphous FeOOH/alum acid bismuth is after six hours of radiation of visible light, photodissociation
Aquatic products oxygen amount is 793.9 μm of ol h-1 g-1, and pure phase alum acid bismuth is 97.4 μm of ol h-1 g-1, crystal phase FeOOH/alum acid
Bismuth is 381.9 μm of ol h-1 g-1.As can be seen that in the same time, amorphous FeOOH/alum acid bismuth photocatalytic water splitting
Oxygen-producing amount is the octuple of pure phase alum acid bismuth, is two times of crystal phase FeOOH/alum acid bismuth.Prove FeOOH/alum acid bismuth
Photocatalysis performance can be effectively improved, and non-crystalline material has narrower forbidden bandwidth, and lacks orderly atomic arrangement,
There are these features of more defects to expand light abstraction width, promote electronics transfer and more active sites are provided, enhances photocatalysis
Performance improves oxygen-producing amount.Synthesis technology of the present invention is simple, and what is utilized is non-noble metallic materials, greatly reduce it is required at
This.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and specific embodiments.Protection scope of the present invention not only office
It is limited to the statement of following content.
Fig. 1-a and Fig. 1-b is the TEM figure for the composite material that embodiment 1 obtains.
Fig. 2-a and Fig. 2-b is the TEM figure for the composite material that embodiment 3 obtains.
Fig. 3 is the photodissociation aquatic products oxygen performance map of 3 gained composite material of embodiment 2 and embodiment.
Specific embodiment
Comparative example:
Weigh: 3 mmolBi2O3(analysis it is pure) be dissolved in 5 mL 3 mol L-1 HNO3 solution and 20 mL ethylene glycol mixing it is molten
Solution A is made in liquid, it is pure to weigh 3mmolNH4VO3(analysis) 20 mL are dissolved in added with 0.2 g dodecyl sodium sulfate (SDS)
B solution is made in hot water.30 min are respectively stirred at room temperature, then solution A is added dropwise in B solution, the use of concentration are 1
It is 4 that the NaOH solution of mol L-1, which adjusts pH value, is stirred solution 60min, obtains BiVO4 catalyst precarsor.By acquired solution
100 mL are moved into in the autoclave of polytetrafluoroethyllining lining, baking oven are put into after sealing, the hydro-thermal reaction 20 at 160 DEG C
H, cooled to room temperature are washed 3 times or more repeatedly with distilled water and dehydrated alcohol, the freeze-day with constant temperature 12h at 80 DEG C, after cooling
It is finely ground with mortar, obtain BiVO4 catalyst.
400mg BiVO4 catalyst fines are added in 0.025 mol/L FeCl3 6H2O solution, after stirring 30 minutes,
Mixed solution is transferred in the high-pressure reactor of the polytetrafluoroethyllining lining of 100mL, is continuously stirred at 100oC 12 hours.
After this, after reactor being cooled to room temperature, liner is taken out, the substance of the inside is filtered, is washed with distilled water three times
More than, by filtered sample in 80oC baking oven 12 hours to get arrive β-FeOOH/BiVO4 catalyst.
As shown in Figure 1, tem observation has coated one layer of FeOOH to the extexine in alum acid bismuth.As shown in figure 3, β-
FeOOH/BiVO4 composite photo-catalyst produces oxygen performance compared with pure phase alum acid bismuth and increases.
Embodiment:
Weigh 5 mmol Bi (NO3), 3 5H2O(analysis it is pure) be dissolved in 5 mL 3 mol L-1 HNO3 solution and 15 mL second two
Solution A is made in mixed alkoxide solution, it is pure to weigh 5 mmol NH4VO3(analysis) 20 mL are dissolved in added with 0.4 g detergent alkylate sulphur
B solution is made in the hot water of sour sodium (SDBS).30 min are respectively stirred at room temperature, and then solution A is added dropwise in B solution,
Adjusting pH value using the NaOH solution that concentration is 1 mol L-1 is 6,30 min of solution is stirred, before obtaining BiVO4 catalyst
Body.Acquired solution is moved into 100 mL in the autoclave of polytetrafluoroethyllining lining, baking oven is put into after sealing, in 200
Hydro-thermal reaction 22h at DEG C, cooled to room temperature are washed 3 times or more, the constant temperature at 60 DEG C repeatedly with distilled water and dehydrated alcohol
Dry 6h, it is finely ground with mortar after cooling, obtain BiVO4 catalyst.
Be separately added into 0.016 mol/L FeCl3 6H2O solution NH4HCO3(wherein FeCl3 6H2O and
The molar ratio of NH4HCO3 is 3:1) and 400mg BiVO4 catalyst fines, it stirs 1 hour.After this, by solution carry out from
Heart processing, and be washed with distilled water.By the sample after centrifugation in 80oC baking oven 12 hours to get arrive amorphous FeOOH/BiVO4
(amorphous FeOOH/BiVO4) catalyst.
As shown in Fig. 2, tem observation has coated one layer of amorphous layer to alum acid bismuth extexine, wherein amorphous layer is hydroxyl oxidation
Iron.As shown in figure 3, amorphous FeOOH/BiVO4 composite photo-catalyst is compared with pure phase alum acid bismuth and β-FeOOH/BiVO4 composite photocatalyst
Agent produces oxygen performance and increases, it was demonstrated that amorphous FeOOH/BiVO4 composite photo-catalyst can effectively improve photocatalysis performance.
It is understood that for those of ordinary skill in the art, can do in accordance with the technical idea of the present invention
Various other changes and modifications out, and all these changes and deformation all should belong to the protection model of the claims in the present invention
It encloses.
Claims (9)
1. a kind of amorphous FeOOH/alum acid bismuth catalysis material preparation method, it is characterised in that: specific step is as follows:
One, the preparation of BiVO4 catalyst
(1) it weighs bismuth source and is dissolved in HNO3 solution and ethylene glycol mixed solution obtained solution A；
(2) it weighs NH4VO3 and is dissolved in 0.1~0.4g template solution obtained B solution；
(3) solution A is added dropwise in B solution, adjusts pH=2~9 using NaOH solution, is stirred solution, obtains
BiVO4 catalyst precarsor；
(4) step (3) acquired solution is moved into autoclave, baking oven is put into after sealing, carry out hydro-thermal reaction, natural cooling
To room temperature, washed dry 2h~20h is finely ground after cooling, obtains BiVO4 catalyst；
Two, amorphous FeOOH/alum acid bismuth composite photocatalyst material preparation
BiVO4 catalyst fines obtained by step 1, stirring are added in the mixed solution of source of iron and NH4HCO3；By mixed solution
Centrifugal treating is carried out, drying is after washing to get purpose product amorphous FeOOH/alum acid bismuth composite photocatalyst material.
2. amorphous FeOOH according to claim 1/alum acid bismuth catalysis material preparation method, it is characterised in that:
In the step 1, bismuth source uses five water bismuth nitrates or bismuth oxide.
3. amorphous FeOOH according to claim 2/alum acid bismuth catalysis material preparation method, it is characterised in that:
In the step 1, template uses neopelex, cetyl trimethylammonium bromide or dodecyl sodium sulfate.
4. amorphous FeOOH according to claim 3/alum acid bismuth catalysis material preparation method, it is characterised in that:
In the step 2, source of iron uses FeCl3 6H2O or FeCl3.
5. amorphous FeOOH according to claim 4/alum acid bismuth catalysis material preparation method, it is characterised in that:
In the step 1, hydrothermal temperature is 110oC~200oC, and the hydro-thermal time is 6h~30h.
6. amorphous FeOOH according to claim 5/alum acid bismuth catalysis material preparation method, it is characterised in that:
In the step 2, the molar ratio of source of iron and NH4HCO3 are 1~5:1.
7. amorphous FeOOH according to claim 6/alum acid bismuth catalysis material preparation method, it is characterised in that:
BiVO4 catalyst fines obtained by step 1 are added in the mixed solution of source of iron and NH4HCO3, stir 1~20 hour；It will mixing
Solution carries out centrifugal treating, and dries 2~20 hours in 40~90oC to get purpose product after being washed with distilled water more than three times
Amorphous FeOOH/alum acid bismuth composite photocatalyst material.
8. amorphous FeOOH according to claim 7/alum acid bismuth catalysis material preparation method, it is characterised in that:
The amorphous FeOOH and BiVO4 mass ratio are 0.5%~11%.
9. amorphous FeOOH according to claim 8/alum acid bismuth catalysis material preparation method, it is characterised in that:
The concentration of iron ion is 0.001mol/L~0.022mol/L in the source of iron.
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| CN111790394A (en) * | 2020-07-31 | 2020-10-20 | 武汉理工大学 | Synthesis method of bismuth vanadate photocatalytic material selectively modified by hydroxyl ferric oxide cocatalyst |
| CN112156787A (en) * | 2020-10-30 | 2021-01-01 | 武汉工程大学 | Amorphous FeOOH modified BiO2-xHeterojunction photocatalyst and preparation method and application thereof |
| CN113293393A (en) * | 2020-11-02 | 2021-08-24 | 台州学院 | Bismuth vanadate/sodium phytate/iron oxyhydroxide composite photoelectrode and preparation method and application thereof |
| CN113293382A (en) * | 2020-11-02 | 2021-08-24 | 台州学院 | BiVO4MnOOH film electrode, preparation method thereof and application thereof in photo-generated cathode corrosion prevention |
| CN113304755A (en) * | 2020-11-06 | 2021-08-27 | 淮阴工学院 | BiVO4/MOOH photoelectric catalyst and preparation method thereof |
| CN113385200A (en) * | 2021-07-07 | 2021-09-14 | 浙江大学 | Full spectrum oxygen production CeF without sacrificial agent3alpha-FeOOH photocatalyst and preparation method thereof |
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| CN113441145A (en) * | 2021-07-30 | 2021-09-28 | 陕西科技大学 | Preparation method of barium titanate/iron oxyhydroxide photocatalyst |
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Application publication date: 20190521 Assignee: Liaoning Hengyi special material Co.,Ltd. Assignor: Liaoming Petrochemical University Contract record no.: X2023210000276 Denomination of invention: Preparation method of amorphous hydroxylated iron oxide/bismuth aluminate composite photocatalytic material Granted publication date: 20220408 License type: Common License Record date: 20231130 |