CN114130410A - Bismuth iron titanium oxyhalide photocatalytic material and preparation method and application thereof - Google Patents
Bismuth iron titanium oxyhalide photocatalytic material and preparation method and application thereof Download PDFInfo
- Publication number
- CN114130410A CN114130410A CN202111269266.2A CN202111269266A CN114130410A CN 114130410 A CN114130410 A CN 114130410A CN 202111269266 A CN202111269266 A CN 202111269266A CN 114130410 A CN114130410 A CN 114130410A
- Authority
- CN
- China
- Prior art keywords
- bismuth
- photocatalytic material
- iron titanium
- solution
- potassium
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 45
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- VPCNTMLLUOWILN-UHFFFAOYSA-N [Ti].[Bi].[Fe] Chemical compound [Ti].[Bi].[Fe] VPCNTMLLUOWILN-UHFFFAOYSA-N 0.000 title claims description 7
- -1 bismuth iron titanium oxide Chemical compound 0.000 claims abstract description 38
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 18
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002135 nanosheet Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 10
- 239000011591 potassium Substances 0.000 claims abstract description 10
- FBXVOTBTGXARNA-UHFFFAOYSA-N bismuth;trinitrate;pentahydrate Chemical compound O.O.O.O.O.[Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FBXVOTBTGXARNA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 229910000416 bismuth oxide Inorganic materials 0.000 claims abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 7
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 6
- 230000000593 degrading effect Effects 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 18
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 16
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 12
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical group [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 12
- 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 claims description 10
- 229940043267 rhodamine b Drugs 0.000 claims description 10
- 239000011780 sodium chloride Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 150000004820 halides Chemical class 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001103 potassium chloride Substances 0.000 claims description 6
- 235000011164 potassium chloride Nutrition 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(III) oxide Inorganic materials O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 5
- AIYUHDOJVYHVIT-UHFFFAOYSA-M caesium chloride Chemical compound [Cl-].[Cs+] AIYUHDOJVYHVIT-UHFFFAOYSA-M 0.000 claims description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 4
- 239000012498 ultrapure water Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000002957 persistent organic pollutant Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000002441 X-ray diffraction Methods 0.000 description 8
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- CBACFHTXHGHTMH-UHFFFAOYSA-N 2-piperidin-1-ylethyl 2-phenyl-2-piperidin-1-ylacetate;dihydrochloride Chemical compound Cl.Cl.C1CCCCN1C(C=1C=CC=CC=1)C(=O)OCCN1CCCCC1 CBACFHTXHGHTMH-UHFFFAOYSA-N 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 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 description 3
- 230000006872 improvement Effects 0.000 description 3
- OZKCXDPUSFUPRJ-UHFFFAOYSA-N oxobismuth;hydrobromide Chemical compound Br.[Bi]=O OZKCXDPUSFUPRJ-UHFFFAOYSA-N 0.000 description 3
- 150000004686 pentahydrates Chemical class 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000004298 light response Effects 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910003077 Ti−O Inorganic materials 0.000 description 1
- 238000000026 X-ray photoelectron spectrum Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- RDQSSKKUSGYZQB-UHFFFAOYSA-N bismuthanylidyneiron Chemical compound [Fe].[Bi] RDQSSKKUSGYZQB-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
- B01J27/06—Halogens; Compounds thereof
- B01J27/135—Halogens; Compounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
-
- B01J35/23—
-
- B01J35/39—
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
Abstract
The invention discloses a bismuth iron titanium oxide photocatalytic material and a preparation method and application thereof. Respectively preparing an ethylene glycol solution of pentahydrate bismuth nitrate and a potassium halide aqueous solution; then, dripping the potassium halide aqueous solution into an ethylene glycol solution of bismuth nitrate pentahydrate, stirring uniformly, centrifuging, and drying the precipitate; fully mixing bismuth oxide, titanium dioxide, ferrous oxide and bismuth oxyhalide nanosheets, grinding the bismuth oxide, titanium dioxide, ferrous oxide and bismuth oxyhalide nanosheets with molten salt, calcining, taking out a calcined sample, grinding, cleaning, and finally drying the cleaned sample in an oven to obtain the bismuth ferric titanium oxide photocatalytic material. The preparation method has the advantages of simple process, easy operation and no secondary pollution, and the obtained material has strong capability of degrading pollutants under illumination, and has wide application prospect in the fields of pollutant treatment, photocatalytic reduction of carbon dioxide and the like.
Description
Technical Field
The invention relates to the technical field of synthesis processes of photocatalytic materials and the field of pollutant treatment, in particular to a bismuth-based photocatalytic material and a preparation method and application thereof.
Background
With the advance of the industrial age, the problems of environmental pollution, energy structure and the like are more and more concerned by human beings, and all countries in the world have no redundancy in solving the problem of environmental pollution and adjusting the energy structure. The semiconductor photocatalyst has the potential of greatly improving the environmental problem, can be used for degrading organic pollutants, treating harmful wastewater, purifying air and the like, so the photocatalytic degradation technology becomes an important method for solving the environmental pollution problem in the 21 st century, and has the advantages ofThe method has the characteristics of low cost, environmental friendliness and the like, and can not generate secondary pollution while solving the environmental problem. TiO 22Is a material which is widely applied since the development of a photocatalytic technology, but has a wide band gap (3.2 eV), so that the material has responsiveness only to ultraviolet light accounting for 5% of sunlight and does not respond to visible light accounting for 43% of the sunlight, and besides, TiO2The photocatalytic activity is also limited by the problems of high electron hole recombination rate and the like. Therefore, the development of a novel photocatalytic material having a visible light response is imminent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a novel bismuth iron titanium oxyhalide photocatalytic material, and a preparation method and application thereof.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
bismuth iron titanium oxyhalide photocatalytic material having the following structural formula:
Bi7Ti2Fe2O17r1, wherein R1 is Br or I.
The preparation method of the bismuth iron titanium oxyhalide photocatalytic material comprises the following steps:
dissolving potassium halide in ultrapure water, and marking as a solution B;
step 3, dropwise adding the solution B into the solution A, magnetically stirring at room temperature for 1 hour, centrifugally washing, and drying the washed sample in an oven to obtain bismuth oxyhalide nanosheets;
step 4, fully mixing the bismuthate, the titanium dioxide, the ferrous oxide and the bismuth oxyhalide nanosheet according to a molar ratio of 3:2:1:1, adding molten salt, grinding, and calcining in a muffle furnace at 973K-1023K;
and 5, taking out the calcined sample, grinding, repeatedly cleaning with deionized water, removing molten salt, and drying the cleaned sample in an oven to obtain the bismuth ferric titanyl halide photocatalytic material.
As a modification, the concentration of the solution A in the step 1 is 0.1 mol/L.
The improvement is that the potassium halide is potassium bromide or potassium iodide.
As a modification, the drying temperature in the step 3 is 80 ℃, and the rotation speed of the centrifugal washing is 6000-.
As a modification, when the potassium halide is potassium bromide, the calcining temperature in the muffle furnace in the step 4 is 1023K and the time is 6 hours; when the potassium halide is potassium iodide, the calcination temperature in the muffle furnace in step 4 is 973K for a period of 12 hours.
The improvement is that the bismuth oxide in the step 4 is bismuth trioxide or bismuth oxide.
The improvement is that the molten salt in the step 4 is one or a mixture of potassium chloride, sodium chloride or cesium chloride; the addition amount is 100 wt% to 120 wt% of the mixture.
The bismuth iron titanium oxyhalide photocatalytic material is applied to degradation of organic pollutant rhodamine B.
Has the advantages that:
compared with the prior art, the bismuth iron titanium oxide photocatalytic material and the preparation method and the application thereof have the following advantages:
1. the bismuth iron titanium oxide bromide and the bismuth iron titanium oxide iodide prepared by the invention are used as a novel semiconductor photocatalyst and have the characteristics of large visible light response range, smaller forbidden bandwidth, low photoproduction electron hole recombination rate and the like;
2. the preparation method has the characteristics of convenient operation, simple process, cheap and easily-obtained raw materials and environmental friendliness, and is suitable for industrial mass production;
3. the bismuth ferric titanyl halide shows good visible light degradation effect on rhodamine B, and the material has wide application prospect in the fields of pollutant treatment, photocatalytic carbon dioxide reduction and the like.
Drawings
FIG. 1 is an XRD pattern of bismuth iron titanium oxy bromide prepared in examples 1-2 of the present invention;
FIG. 2 is an XRD spectrum of bismuth iron titanium oxyiodide prepared in examples 3-4 of the present invention;
FIG. 3 is an SEM image of bismuth iron titanium oxy bromide prepared in example 1 of the present invention;
FIG. 4 is an SEM image of bismuth iron titanium oxyiodide prepared in example 3 of the present invention;
FIG. 5 is an XPS spectrum of bismuth iron titanium oxy bromide prepared in example 1 of the present invention;
FIG. 6 is an absorption spectrum of a Bi-Fe-Ti-O bromide prepared in example 1 of the present invention with a UV-visible spectrophotometer;
FIG. 7 is an ultraviolet-visible spectrophotometer for bismuth iron titanium oxyiodide prepared in example 3 of the present invention;
FIG. 8 shows the effect of bismuth iron titanium oxy-bromide and bismuth iron titanium oxy-iodide on the degradation of rhodamine B, which are prepared in embodiments 1 and 3 of the present invention.
Detailed Description
Example 1
A synthesis method of a bismuth ferric titanyl bromide photocatalytic material comprises the following steps:
Weighing 2 mmol of bismuth nitrate pentahydrate, adding the bismuth nitrate pentahydrate into 20 ml of ethylene glycol, stirring the mixture by using a magnetic stirrer to fully dissolve the bismuth nitrate pentahydrate, and marking the solution as a solution A;
weighing 2 mmol of potassium bromide, dissolving the potassium bromide in 10 ml of ultrapure water, and marking as a solution B;
dropwise adding the solution B into the solution A, magnetically stirring at room temperature for 1 hour, then centrifugally washing, and drying the washed sample in an oven at 80 ℃ to obtain bismuth oxybromide nanosheets;
Weighing 3 millimoles of bismuth trioxide, 2 millimoles of titanium dioxide, 1 millimole of ferrous oxide and 1 millimole of bismuth oxybromide nanosheet, and fully mixing; adding potassium chloride and sodium chloride (30 mmol of each), fully grinding, and then placing in a muffle furnace for 1023K to calcine for 6 hours; and taking out the calcined sample, further grinding, finally repeatedly cleaning with deionized water to remove molten salt, and drying the cleaned sample in an oven to obtain the bismuth ferric titanyl bromide photocatalytic material.
The result of detecting the bismuth ferric titanyl bromide photocatalytic material is shown in figure 1, and the XRD spectrum in figure 1 shows that the diffraction peak is relatively sharp, the crystallinity is high, and the synthesized material is Bi7Ti2Fe2O17Br。
The method for degrading rhodamine B by using the bismuth iron titanyl bromide photocatalytic material comprises the following specific steps:
100 mg of the ground bismuth iron titanium oxybromide photocatalytic material is taken, 100 ml of rhodamine B solution (5 mg/L) is added, and the mixture is stirred for 30 minutes in a dark room. Simulating sunlight, irradiating the solution by using a xenon lamp, filtering ultraviolet light with the wavelength less than 420 nanometers by using a filter, wherein the height of a light source from the upper surface of the solution is 10 centimeters. Every 15 minutes, 4 ml of the solution was taken and centrifuged to separate the solution from the powder. The solution is measured by an ultraviolet-visible spectrophotometer to obtain an absorption spectrum, the degradation effect is shown in figure 8, and the concentration of rhodamine B is reduced by 83% after the solution is irradiated for 60 minutes.
Example 2
The procedure of example 1 was repeated, except that the bismuth trioxide was changed to bismuth oxide, and the molten salt was changed from potassium chloride and sodium chloride (30 mmol each) to sodium chloride and cesium chloride (30 mmol each).
When the bismuth ferric titanyl bromide photocatalytic material is detected, the XRD spectrum in figure 1 shows that the diffraction peak is relatively sharp and the crystallinity is high, and the synthesized material is Bi7Ti2Fe2O17Br。
Example 3
A method for synthesizing bismuth iron titanium oxygen iodide photocatalytic material comprises the following steps:
Weighing 2 mmol of pentahydrate and bismuth nitrate, adding the pentahydrate and the bismuth nitrate into 20 ml of ethylene glycol, stirring by using a magnetic stirrer to fully dissolve the pentahydrate and the bismuth nitrate, and marking as a solution A;
weighing 2 mmol of potassium iodide, dissolving the potassium iodide in 10 ml of ultrapure water, and marking as a solution B;
dropwise adding the solution B into the solution A, magnetically stirring at room temperature for 1 hour, then centrifugally washing, and drying the cleaned sample in an oven at 80 ℃ to obtain the bismuth oxyiodide nanosheet.
Weighing 3 millimoles of bismuth trioxide, 2 millimoles of titanium dioxide, 1 millimole of ferrous oxide and 1 millimole of bismuth oxyiodide nanosheets, adding potassium chloride and sodium chloride (each 30 millimoles), fully mixing and grinding; then placing the mixture in a muffle furnace for 973K to calcine for 6 hours; and finally, taking out the calcined sample, and fully grinding to obtain the bismuth iron titanium oxyiodide photocatalytic material.
When the bismuth iron titanium oxyiodide photocatalytic material is detected, the XRD (X-ray diffraction) spectrum in figure 2 shows that the diffraction peak is relatively sharp and the crystallinity is very high, and the synthesized material is Bi7Ti2Fe2O17I。
The bismuth iron titanium oxyiodide photocatalytic material is used for degrading rhodamine B, and the specific steps are as follows
100 mg of powder of the bismuth iron titanium oxyiodide photocatalytic material after grinding is added with 100 ml of rhodamine B solution (5 mg/L), and the mixture is stirred for 30 minutes in a dark room. Simulating sunlight, irradiating the solution by using a xenon lamp, filtering ultraviolet light with the wavelength less than 420 nanometers by using a filter, wherein the height of a light source from the upper surface of the solution is 10 centimeters. Every 15 minutes, 4 ml of the solution was taken and centrifuged to separate the solution from the powder. The solution is measured by an ultraviolet-visible spectrophotometer to obtain an absorption spectrum, the degradation effect is shown in figure 8, and after 60 minutes of illumination, the concentration of rhodamine B is reduced by 87%.
Example 4
The procedure of example 3 was repeated, except that the molten salt was changed from potassium chloride and sodium chloride (30 mmol each) to sodium chloride and cesium chloride (30 mmol each).
When the bismuth iron titanium oxyiodide photocatalytic material is detected, as can be seen from an XRD (X-ray diffraction) spectrum in figure 2, a diffraction peak is relatively sharp, the crystallinity is very high, and the synthesized material is Bi7Ti2Fe2O17I。
In conclusion, the preparation process is simple, the selected molten salts are all cheap and easily available materials, and are easy to recover and recycle, so that the green development concept is met; the bismuth ferric titanyl halide has good photocatalytic degradation effect on organic dye. Therefore, the bismuth ferric titanyl halide is worthy of being added into a photocatalytic material system for further research so as to solve more photocatalytic problems.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are within the scope of the present invention.
Claims (9)
1. The bismuth iron titanium oxyhalide photocatalytic material is characterized by having the following structural formula: bi7Ti2Fe2O17R1, wherein R1 is Br or I.
2. The preparation method of the bismuth iron titanium oxide photocatalytic material according to claim 1, characterized by comprising the steps of: step 1, adding bismuth nitrate pentahydrate into ethylene glycol, and stirring by using a constant-temperature magnetic stirrer to fully dissolve the bismuth nitrate pentahydrate, and marking as a solution A; dissolving potassium halide in ultrapure water, and marking as a solution B; step 3, dropwise adding the solution B into the solution A, magnetically stirring at room temperature for 1 hour, centrifugally washing, and drying the washed sample in an oven to obtain bismuth oxyhalide nanosheets; step 4, fully mixing the bismuthate, the titanium dioxide, the ferrous oxide and the bismuth oxyhalide nanosheet according to the molar ratio of 3:2:1:1, adding molten salt, grinding, and calcining in a muffle furnace by using 973-; and 5, taking out the calcined sample, grinding, repeatedly cleaning with deionized water, removing molten salt, and drying the cleaned sample in an oven to obtain the bismuth ferric titanyl halide photocatalytic material.
3. The method for preparing a bismuth iron titanium oxide photocatalytic material according to claim 1, wherein the concentration of the solution a in step 1 is 0.1 mol/L.
4. The method for preparing bismuth iron titanium oxide photocatalytic material according to claim 1, wherein the potassium halide is potassium bromide or potassium iodide.
5. The method for preparing bismuth iron titanium oxide halide photocatalytic material as claimed in claim 1, wherein the drying temperature in step 3 is 80 ℃, and the rotational speed of the centrifugal washing is 6000-.
6. The method for preparing bismuth iron titanium oxide photocatalytic material according to claim 1, wherein when the potassium halide is potassium bromide, the calcination temperature in the muffle furnace in step 4 is 1023K for 6 hours; when the potassium halide is potassium iodide, the calcination temperature in the muffle furnace in step 4 is 973K for a period of 12 hours.
7. The method for preparing bismuth iron titanium oxide photocatalytic material according to claim 1, wherein the bismuth oxide in step 4 is bismuth trioxide or bismuth oxide.
8. The method for preparing bismuth iron titanium oxide photocatalytic material according to claim 1, wherein the molten salt in step 4 is one or more of potassium chloride, sodium chloride, and cesium chloride; the addition amount is 100 wt% to 120 wt% of the mixture.
9. The application of the bismuth ferric titanyl halide photocatalytic material based on claim 1 or claim 2 in degrading an organic pollutant rhodamine B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269266.2A CN114130410A (en) | 2021-10-29 | 2021-10-29 | Bismuth iron titanium oxyhalide photocatalytic material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269266.2A CN114130410A (en) | 2021-10-29 | 2021-10-29 | Bismuth iron titanium oxyhalide photocatalytic material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114130410A true CN114130410A (en) | 2022-03-04 |
Family
ID=80394833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269266.2A Pending CN114130410A (en) | 2021-10-29 | 2021-10-29 | Bismuth iron titanium oxyhalide photocatalytic material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114130410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114890463A (en) * | 2022-06-15 | 2022-08-12 | 重庆邮电大学 | Preparation method of stable perovskite micron crystal with good photocatalytic performance, product and application thereof |
| CN115672360A (en) * | 2022-09-21 | 2023-02-03 | 盐城工学院 | Bismuth-based oxyhalide photocatalytic material and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468148A (en) * | 2020-06-01 | 2020-07-31 | 盐城工学院 | Preparation method and application of bismuth-titanium-iron oxychloride photocatalytic material |
-
2021
- 2021-10-29 CN CN202111269266.2A patent/CN114130410A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111468148A (en) * | 2020-06-01 | 2020-07-31 | 盐城工学院 | Preparation method and application of bismuth-titanium-iron oxychloride photocatalytic material |
Non-Patent Citations (1)
| Title |
|---|
| 周文运: "《永磁铁氧体和磁性液体设计工艺》", 31 December 1991, 电子科技大学出版社, pages: 196 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114890463A (en) * | 2022-06-15 | 2022-08-12 | 重庆邮电大学 | Preparation method of stable perovskite micron crystal with good photocatalytic performance, product and application thereof |
| CN114890463B (en) * | 2022-06-15 | 2023-06-02 | 重庆邮电大学 | Preparation method of perovskite microcrystal with stability and good photocatalytic performance, product and application thereof |
| CN115672360A (en) * | 2022-09-21 | 2023-02-03 | 盐城工学院 | Bismuth-based oxyhalide photocatalytic material and preparation method and application thereof |
| CN115672360B (en) * | 2022-09-21 | 2023-08-01 | 盐城工学院 | Bismuth-based oxyhalide photocatalytic material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106732524B (en) | Alpha/beta-bismuth oxide phase heterojunction photocatalyst and preparation method and application thereof | |
| CN106824213B (en) | Cobalt oxide doped bismuth subcarbonate/bismuth oxychloride photocatalyst and preparation method thereof | |
| CN114130410A (en) | Bismuth iron titanium oxyhalide photocatalytic material and preparation method and application thereof | |
| CN107511154B (en) | Sea urchin-shaped CeO 2 /Bi 2 S 3 Composite visible light catalyst and preparation method thereof | |
| CN101791548A (en) | Visible light catalyst BiVO4 and preparation method thereof | |
| CN112090440A (en) | Oxygen-deficient titanium dioxide material of composite hydroxylated carbon nitride and preparation method thereof | |
| CN112076741B (en) | CeO (CeO) 2 /Bi 2 O 4 Composite visible light catalyst and preparation method thereof | |
| CN104001519A (en) | Method for preparing Cu2O/Bi2O3 nanometer compound photocatalysts in indoor temperature solid-phase one-step mode | |
| CN108499582A (en) | A kind of preparation method of composite photo-catalyst | |
| CN108906107A (en) | A kind of preparation method of sulfur and nitrogen co-doped titanium dioxide | |
| CN105883910B (en) | A kind of perovskite SrTiO3The preparation method and product of porous nano particle | |
| CN105080553A (en) | Method for preparing stanniferous double-perovskite type phenol photocatalytic degradation catalyst | |
| CN111468148B (en) | Preparation method and application of bismuth titanium iron oxychloride photocatalysis material | |
| CN105727922B (en) | A kind of Li adulterates SrTiO3The preparation method and product of ten octahedron nanometer particles | |
| CN112778996B (en) | Tungsten-based composite material and preparation method and application thereof | |
| CN108273522B (en) | A kind of Z-type semiconductor light-catalyst and its preparation method and application with trapezium structure | |
| CN109437292A (en) | A kind of ultra-thin two-dimension titanium dioxide nanoplate efficiently synthesized and preparation method | |
| CN115301225A (en) | Preparation method and application of bismuth/titanium dioxide photocatalytic degradation material with hollow microsphere structure | |
| CN112547077B (en) | Broad-spectral-response sillenite-based efficient photocatalyst and preparation method thereof | |
| Liu et al. | Solid-state synthesis and photodegradation property of anatase TiO2 micro-nanopowder by sodium replacement | |
| CN109289880A (en) | A kind of BiOI (100)/BiOI (001) is the same as phase homojunction and preparation method | |
| CN104772147A (en) | Photocatalyst responding to ultraviolet light and visible light and preparation method thereof | |
| CN109589963B (en) | Lithium niobate type oxide/attapulgite nonlinear optical composite photocatalytic material and preparation method and application thereof | |
| CN115672360B (en) | Bismuth-based oxyhalide photocatalytic material and preparation method and application thereof | |
| CN109261174B (en) | BiOCl micron ring 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 |