CN109794271B - Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet - Google Patents

Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet Download PDF

Info

Publication number
CN109794271B
CN109794271B CN201910081431.8A CN201910081431A CN109794271B CN 109794271 B CN109794271 B CN 109794271B CN 201910081431 A CN201910081431 A CN 201910081431A CN 109794271 B CN109794271 B CN 109794271B
Authority
CN
China
Prior art keywords
brominated
methylimidazole
pbbio
oxygen
nanosheet
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.)
Active
Application number
CN201910081431.8A
Other languages
Chinese (zh)
Other versions
CN109794271A (en
Inventor
王彬
夏杰祥
刘高鹏
叶钰珍
朱文帅
李华明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University
Original Assignee
Jiangsu University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu University filed Critical Jiangsu University
Priority to CN201910081431.8A priority Critical patent/CN109794271B/en
Publication of CN109794271A publication Critical patent/CN109794271A/en
Application granted granted Critical
Publication of CN109794271B publication Critical patent/CN109794271B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention belongs to the field of photocatalytic materials, and discloses an oxygen-enriched defect ultrathin PbBiO2Preparation method and application of Br nanosheet. The catalyst is synthesized by taking reactive brominated 1-hexadecyl-3-methylimidazole as a bromine source, bismuth nitrate as a bismuth source, lead nitrate as a lead source and polyvinylpyrrolidone as a surfactant in a mixed solution of water, mannitol and ethanol by a solvothermal method. Cooling, filtering and washing the product, and drying in the air to obtain the ultrathin PbBiO2Br nanosheet. The PbBiO2Br nano-sheet material prepared by the method has a single-cell thickness of about 1.2nm, has excellent photocatalytic performance under the irradiation of visible light with a wavelength of more than 400nm, and can realize the efficient degradation of organic pollutants. The synthesis method has the advantages of low cost, simplicity, practicability, environmental protection and easy control.

Description

Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet
Technical Field
The invention belongs to the field of material preparation and application of photocatalysis technology, and particularly relates to an oxygen-enriched defect ultrathin PbBiO2A preparation method and application of Br nanosheets.
Background
In TiO since 19722Since the discovery of photocatalytic water splitting on electrodes, the effective utilization of solar energy in the photocatalytic environmental purification process has attracted extensive research interest due to the increasing adverse effect of industrialization on the environment. Over the past few decades, various strategies have been developed to enhance the exposure of pollutants to sunlightDegradation efficiency of, for example: doping, semiconductor compounding, photosensitization, noble metal deposition, and the like. Inspired by the influence of crystal plane characteristics (such as atomic arrangement and electronic structure) on the activity of the photocatalyst, people have great interest in adjusting the defects of the photocatalyst to optimize the activity of the solar-driven photocatalytic reaction. However, how to effectively control defects to expose more active sites remains a difficulty in the preparation process of the photocatalyst.
Recently, two-dimensional materials have received much attention for their potential applications in the fields of optoelectronics, energy storage, catalysis, etc. due to their high specific surface area and more non-coordinated surface atoms relative to the corresponding bulk material. Furthermore, exposed atoms on the surface of the two-dimensional material readily escape from the crystal lattice to form vacancies, which greatly affect the physical and chemical properties of the catalyst. Therefore, many studies are devoted to peeling layered materials to obtain single-layer samples or directly synthesizing ultrathin nanosheets to explore their potential for higher performance.
Bismuth lead oxybromide (PbBiO) as a novel layered quaternary oxide semiconductor2Br) has recently attracted considerable attention because of its excellent photocatalytic properties, high chemical and optical stability, low cost, and corrosion resistance. PbBiO2Br is [ PbBiO ]2]2+Layer and layer of a bisbromoatomic layer interleaved therein along [001 ]]Direction is formed. To date, various micro/nano-structured PbBiO2Br materials are prepared, such as flower-like microspheres, nanosheets, amorphous blocky structures, and the like. However, currently ultra-thin PbBiO is concerned2The preparation method of the Br nanosheet and the strategy for introducing the defect state structure are not reported in documents and patents. Therefore, a simple and effective method for preparing ultrathin PbBiO containing defect state structure is explored2Br nano-sheets are significant in improving the efficiency of photocatalytic degradation of pollutants.
Disclosure of Invention
The invention aims to provide a mild, simple, cheap and green method for preparing ultrathin PbBiO with oxygen-enriched defects2Br nanosheet. And adjusting PbBiO by hydrothermal method and adjusting pH of the solution2Thickness of BrAnd relative oxygen defect concentrations. And the catalyst is used for improving the catalytic efficiency of visible light for degrading organic pollutants in water.
The technical scheme of the invention is as follows:
ultra-thin PbBiO with oxygen-enriched defect2The preparation method of the Br nanosheet comprises the following steps:
(1) adopting lead nitrate or lead acetate as a lead source; bismuth nitrate, bismuth acetate or bismuth ammonium citrate are used as bismuth sources; then adding a certain amount of polyvinylpyrrolidone, and preparing a solution A in a mixed solvent of mannitol and water;
(2) preparing a solution B in an ethanol solvent by taking brominated ionic liquid or inorganic bromine salt as a bromine source;
(3) dropwise adding the solution B in the step (2) into the solution A in the step (1), and continuously stirring to obtain a mixed solution C;
(4) pouring the solution C into a high-pressure reaction kettle with polytetrafluoroethylene inner liner for reaction for several hours, cooling, centrifuging, respectively washing with deionized water and absolute ethyl alcohol, and drying to obtain the oxygen-enriched defect ultrathin PbBiO2A Br nanosheet catalyst.
In the step (1), mixing a lead source in the solution A: a bismuth source: polyvinylpyrrolidone: mannitol: the dosage ratio of water is as follows: 0.5mmol, 0.2g, 3mmol, 30 mL.
In the step (2), the dosage ratio of the brominated ionic liquid or inorganic bromine salt to the absolute ethyl alcohol is as follows: 0.5mmol:10 mL. In the step (2), the brominated ionic liquid is brominated 1-hexadecyl-3-methylimidazole, brominated 1-dodecyl-3-methylimidazole, brominated 1-tetradecyl-3-methylimidazole, brominated 1-hexyl-2, 3-methylimidazole, brominated 1-hexyl-3-methylimidazole, brominated 1-allyl-3-butylimidazole, brominated 1-allyl-3-ethylimidazole, brominated 1-allyl-3-methylimidazole, brominated 1-decyl-3-methylimidazole, brominated 1-carboxyethyl-3-methylimidazole, brominated 1-carboxymethyl-3-methylimidazole, brominated 1-aminopropyl-3-methylimidazole, brominated 1-bromopropylated-3-methylimidazole, brominated 1-dodecylated-3-methylimidazole, Brominated 1-aminoethyl-3-methylimidazole, brominated 1-benzyl-3-methylimidazole, brominated 1-octyl-3-methylimidazole, brominated N-butyl-N-methylpyrrolidine, brominated 1-pentyl-3-methylimidazole, brominated N-octylpyridine, brominated 1-butyl-3-methylimidazole, brominated 1-propyl-3-methylimidazole, brominated 1-ethyl-3-methylimidazole, brominated 1-ethylethyl ether-3-methylimidazole, brominated 1-ethylmethyl ether-2-methylimidazole, brominated 1-vinyl-3-butylimidazole, brominated 1-vinyl-3-ethylimidazole, Brominated 1-acetoxy-3-methylimidazole, brominated N-butylpyridine, brominated N-ethylpyridine and brominated N-hexylpyridine; the inorganic bromine salt is potassium bromide or sodium bromide.
In the step (3), a lead source: a bismuth source: the ratio of the amounts of the bromine sources is: 1:1: 1; the stirring is continued for 30-60 minutes.
In the step (4), the reaction temperature of the high-pressure reaction kettle is 140-.
In the step (4), the drying temperature is 50-60 ℃, and the drying time is 12-24 hours.
The invention relates to an ultrathin PbBiO with oxygen-enriched defects2The Br nanosheet catalyst was about 1.2nm thick.
The oxygen-enriched defect ultrathin PbBiO prepared by the invention2The Br nanosheet photocatalyst is used for photocatalytic degradation of an organic dye rhodamine B.
The invention has the beneficial effects that:
the PbBiO with the thickness of the oxygen-enriched defect single cell is prepared controllably by a mild solvothermal method for the first time2Br nanosheet.
PbBiO compared to the thickness of oxygen deficient single cell2Br nanosheet and bulk PbBiO2Br, oxygen-enriched defect single-cell thickness PbBiO2The Br nanosheet exhibits excellent activity in visible light photocatalytic degradation of rhodamine B and ciprofloxacin.
Description of the drawings:
FIG. 1 shows the preparation of PbBiO2XRD pattern of Br catalyst.
FIG. 2 is an oxygen-rich defect ultra-thin PbBiO2SEM, TEM and AFM images of Br nanoplates.
FIG. 3 is an ultra-thin PbBiO with few oxygen defects2SEM, TEM and AFM images of Br nanoplates.
FIG. 4 is bulk phase PbBiO2SEM image of Br nanoparticles.
FIG. 5 is a schematic diagram of the prepared PbBiO2Electron Paramagnetic Resonance (EPR) profile of Br catalyst.
FIG. 6 shows the PbBiO thus prepared2High resolution O1 s spectra of Br catalyst.
FIG. 7 shows the preparation of PbBiO under visible light irradiation2Degradation curve of Br catalyst to rhodamine B.
FIG. 8 shows the preparation of PbBiO under visible light irradiation2Degradation profile of Br catalyst on ciprofloxacin.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to the figures and specific examples of the specification.
Example 1:
PbBiO2the preparation of Br catalyst and the research of its photocatalytic performance include the following steps:
0.5mmol of lead nitrate, 0.5mmol of bismuth nitrate and 0.2g of polyvinylpyrrolidone are added into 30mL of mannitol aqueous solution (0.1mol/L) to prepare solution A. In another container, 0.5mmol of brominated 1-hexadecyl-3-methylimidazole was dissolved in 10mL of anhydrous ethanol to prepare a solution B. The solution B was added dropwise to the solution A, and after the resulting mixed solution was stirred for further 30 minutes, the mixed solution was poured into a 50mL autoclave equipped with a Teflon liner and reacted at 160 ℃ for 24 hours. Cooling the reaction kettle to room temperature, centrifuging the precipitate, washing with water and absolute ethanol for three times respectively, and drying the final product at 60 ℃ for 12 hours to obtain the oxygen-enriched defect ultrathin PbBiO2Br nanosheet (ROV-PbBiO)2Br)。
Example 2:
0.5g of oxygen-enriched defect ultrathin PbBiO is taken2Dispersing the Br nano-sheets into 20mL of deionized water by ultrasonic and stirring, pouring the obtained mixed suspension into a 25mL high-pressure reaction kettle with polytetrafluoroethylene inner liner, and reacting for 12 hours at 140 ℃. Cooling the reaction kettle to room temperature, centrifuging the precipitate, washing with water and absolute ethanol for three times respectively, and drying the final product at 60 ℃ for 12 hours to obtain the low-oxygen defect ultrathin PbBiO2Br nanosheet (POV-PbBiO)2Br)。
Example 3:
0.5mmol of lead nitrate, 0.5mmol of bismuth nitrate and 0.2g of polyvinylpyrrolidone are added into 30mL of mannitol aqueous solution (0.1mol/L) to prepare solution A. In another container, 0.5mmol of brominated 1-hexadecyl-3-methylimidazole was dissolved in 10mL of anhydrous ethanol to prepare a solution B. Solution B was added dropwise to solution a to give solution C. 5mL of ammonia water was added dropwise to the solution C, and the resulting mixed solution was stirred for 30 minutes, and then the mixed solution was poured into a 50mL autoclave equipped with a Teflon liner, and reacted at 180 ℃ for 24 hours. Cooling the reaction kettle to room temperature, centrifuging the precipitate, washing with water and anhydrous ethanol for three times, and drying the final product at 60 deg.C for 12 hr to obtain bulk phase PbBiO2Br nanoparticles (Bulk-PbBiO)2Br)。
FIG. 1 shows PbBiO prepared in examples 1 to 3 of the present invention2XRD pattern of Br. As can be seen, the three catalysts exhibited diffraction peaks consistent with those of the standard card JCPDS No.38-1008, indicating that the catalysts prepared were pure PbBiO2A Br material.
FIG. 2 shows oxygen-rich defect PbBiO2SEM (FIG. 2a), TEM (FIGS. 2b and 2c) and AFM (FIG. 2d) images of Br. As can be seen from FIGS. 2a and 2b, the prepared oxygen-rich defect PbBiO2The Br material is of a nanosheet structure. FIGS. 2c and 2d show that oxygen-rich defects PbBiO2The thickness of the Br nanoplates was approximately 1.2 nanometers.
FIG. 3 is a view of a low oxygen defect PbBiO2SEM (FIG. 3a), TEM (FIGS. 3b and 3c) and AFM (FIG. 3d) images of Br. As can be seen from FIGS. 3a and 3b, the prepared oxygen-rich defect PbBiO2The Br material is of a nanosheet structure. FIGS. 3c and 3d show that oxygen-rich defects PbBiO2The thickness of the Br nanoplates was approximately 1.2 nanometers.
FIG. 4 is bulk phase PbBiO2SEM image of Br. From FIG. 4, it can be seen that bulk PbBiO is present2Br of about 100 nm
FIG. 5 is the PbBiO prepared2EPR profile of Br material. The sample showed an EPR signal at g-2.001 that could be identified as an electron trapped on an oxygen defect. ROV PbBiO2Br Material exhibits the highest Signal Strength, Bulk PbBiO2The signal intensity of the Br material is the lowest. Watch with a watch bodyMing and ROV PbBiO2Br material with highest oxygen defect concentration, POV PbBiO2Br times, and Bulk PbBiO2The oxygen defect concentration of the Br material is minimal.
FIG. 6 is the PbBiO prepared2XPS high resolution spectra of O1 s of Br material. 531.1eV corresponds to the oxygen atom in the vicinity of the oxygen defect, and 529.3eV corresponds to the oxygen atom in the vicinity of the non-oxygen defect, and the ratio of the two peaks is calculated to compare the magnitudes of the oxygen defect concentrations in the catalysts. As can be seen in the figure, ROV PbBiO2The peak area at 531.1eV in the Br material accounts for the largest proportion (43.88%), and the POV PbBiO2Br times (36.10%), Bulk PbBiO2Br was minimal (27.78%). This also demonstrates ROV PbBiO2The Br material contains the most oxygen defect concentration.
FIG. 7 is the PbBiO prepared2The Br material reduces the activity diagram of rhodamine B under the irradiation of visible light. After 120 minutes of visible light irradiation, the defect-rich ultrathin PbBiO2The Br nanomaterial can achieve 100% degradation of the target contaminant. Less-defect ultrathin PbBiO2Br nanomaterial and bulk PbBiO2Br material only achieved 70.2% and 20.24% degradation of the target contaminant (rhodamine B), respectively.
FIG. 8 is the PbBiO prepared2And (3) degrading the ciprofloxacin activity diagram by using a Br material under the irradiation of visible light. After 150 minutes of visible light irradiation, the defect-rich ultrathin PbBiO2The Br nanomaterial can achieve 41.73% degradation of the target contaminant. Less-defect ultrathin PbBiO2Br nanomaterial and bulk PbBiO2Br material only achieved 27.09% and 5.56% degradation of the target contaminant (ciprofloxacin), respectively.

Claims (9)

1. Ultra-thin PbBiO with oxygen-enriched defect2The preparation method of the Br nanosheet is characterized by comprising the following steps:
(1) adopting lead nitrate or lead acetate as a lead source; bismuth nitrate, bismuth acetate or bismuth ammonium citrate are used as bismuth sources; then adding a certain amount of polyvinylpyrrolidone, and preparing a solution A in a mixed solvent of mannitol and water;
(2) preparing a solution B in an ethanol solvent by taking brominated ionic liquid as a bromine source;
(3) dropwise adding the solution B in the step (2) into the solution A in the step (1), and continuously stirring to obtain a mixed solution C;
(4) pouring the solution C into a high-pressure reaction kettle with polytetrafluoroethylene inner liner for reaction for several hours, cooling, centrifuging, respectively washing with deionized water and absolute ethyl alcohol, and drying to obtain the oxygen-enriched defect ultrathin PbBiO2A Br nanosheet catalyst.
2. The oxygen-rich defect ultra-thin PbBiO of claim 12The preparation method of the Br nanosheet is characterized in that in the step (1), the lead source in the mixed solution A: a bismuth source: polyvinylpyrrolidone: mannitol: the dosage ratio of water is as follows: 0.5mmol, 0.2g, 3mmol, 30 mL.
3. The oxygen-rich defect ultra-thin PbBiO of claim 12The preparation method of the Br nanosheet is characterized in that in the step (2), the dosage ratio of the brominated ionic liquid or the inorganic bromine salt to the absolute ethyl alcohol is as follows: 0.5mmol:10 mL.
4. The oxygen-rich defect ultra-thin PbBiO of claim 1 or 32The preparation method of the Br nanosheet is characterized in that in the step (2), the brominated ionic liquid is brominated 1-hexadecyl-3-methylimidazole, brominated 1-dodecyl-3-methylimidazole, brominated 1-tetradecyl-3-methylimidazole, brominated 1-hexyl-2, 3-methylimidazole, brominated 1-hexyl-3-methylimidazole, brominated 1-allyl-3-butylimidazole, brominated 1-allyl-3-ethylimidazole, brominated 1-allyl-3-methylimidazole, brominated 1-decyl-3-methylimidazole, brominated 1-carboxyethyl-3-methylimidazole, brominated 1-carboxymethyl-3-methylimidazole, brominated 1-dodecyl-3-methylimidazole, Brominated 1-aminopropyl-3-methylimidazole, brominated 1-aminoethyl-3-methylimidazole, brominated 1-benzyl-3-methylimidazole, brominated 1-octyl-3-methylimidazole, brominated N-butyl-N-methylpyrrolidine, brominated 1-pentyl-3-methylimidazole, brominated N-octylpyridine, brominated 1-butyl-3-methylimidazole, brominated 1-propyl-3-methylimidazole, brominated 1-ethyl-3-methylimidazole, brominated 1-ethylethylimidazole3-methylimidazole ether-bromide, 1-ethylmethylether-2-methylimidazole bromide, 1-vinyl-3-butylimidazole bromide, 1-vinyl-3-ethylimidazole bromide, 1-ethoxycarbonyl-3-methylimidazole bromide, N-butylpyridine bromide, N-ethylpyridine bromide and N-hexylpyridine bromide.
5. The oxygen-rich defect ultra-thin PbBiO of claim 12The preparation method of the Br nanosheet is characterized in that in the step (3), a lead source: a bismuth source: the ratio of the amounts of the bromine sources is: 1:1: 1; the stirring is continued for 30-60 minutes.
6. The oxygen-rich defect ultra-thin PbBiO of claim 12The preparation method of the Br nano-sheet is characterized in that in the step (4), the reaction temperature of the high-pressure reaction kettle is 140-180 ℃, and the reaction time is 12-24 hours.
7. The oxygen-rich defect ultra-thin PbBiO of claim 12The preparation method of the Br nanosheet is characterized in that in the step (4), the drying temperature is 50-60 ℃, and the drying time is 12-24 hours.
8. Ultra-thin PbBiO with oxygen-enriched defect2Br nanosheet, characterized in that it is produced by the production method according to any one of claims 1 to 7, and the ultrathin PbBiO2The Br nanoplates are rich in oxygen defects and are about 1.2nm thick.
9. The oxygen-rich defect ultra-thin PbBiO of claim 82Use of Br nanosheets, characterized in that they are used for the photocatalytic degradation of the organic dye rhodamine B or ciprofloxacin.
CN201910081431.8A 2019-01-28 2019-01-28 Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet Active CN109794271B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910081431.8A CN109794271B (en) 2019-01-28 2019-01-28 Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910081431.8A CN109794271B (en) 2019-01-28 2019-01-28 Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet

Publications (2)

Publication Number Publication Date
CN109794271A CN109794271A (en) 2019-05-24
CN109794271B true CN109794271B (en) 2021-09-10

Family

ID=66560491

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910081431.8A Active CN109794271B (en) 2019-01-28 2019-01-28 Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet

Country Status (1)

Country Link
CN (1) CN109794271B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398955B (en) * 2021-05-31 2023-02-17 江苏大学 Preparation method of Sillen-type bimetal oxyhalide for antibiotic degradation
CN114289038A (en) * 2021-11-19 2022-04-08 江苏大学 BiOCl rich in defects0.5I0.5Solid solution photocatalyst and preparation method and application thereof
CN114618535A (en) * 2022-02-14 2022-06-14 江苏大学 Preparation method of oxygen-enriched vacancy bimetal oxychloride nanosheet and photocatalytic CO prepared by preparation method2Reduction applications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105460974A (en) * 2014-09-13 2016-04-06 南阳师范学院 Defect-rich ultra-thin bismuth oxyiodide nano-sheet preparation method
CN106753367A (en) * 2017-01-16 2017-05-31 昆明理工大学 A kind of rare earth ion doped halogen bislumina semiconductive luminescent materials
CN107522227A (en) * 2017-08-22 2017-12-29 河南师范大学 A kind of method that ultrasonic method prepares the bismoclite flat crystal with oxygen defect
CN107790159A (en) * 2017-09-28 2018-03-13 浙江理工大学 Photochemical catalyst and its preparation and application of a kind of high selectivity catalysis oxidation alcohol into aldehyde
CN108311164A (en) * 2017-01-18 2018-07-24 中国科学院生态环境研究中心 A kind of iron modified photocatalytic material and its preparation method and application
CN109174138A (en) * 2018-08-08 2019-01-11 江苏大学 A kind of Bi4O5I2The preparation method of ultra-thin hollow nano pipe light catalyst

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120081845A (en) * 2011-01-12 2012-07-20 삼성전자주식회사 Photocatalyst, method preparing the same, decomposer for organic compound using photocatalyst and device for organic waste disposal using photocatalyst

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105460974A (en) * 2014-09-13 2016-04-06 南阳师范学院 Defect-rich ultra-thin bismuth oxyiodide nano-sheet preparation method
CN106753367A (en) * 2017-01-16 2017-05-31 昆明理工大学 A kind of rare earth ion doped halogen bislumina semiconductive luminescent materials
CN108311164A (en) * 2017-01-18 2018-07-24 中国科学院生态环境研究中心 A kind of iron modified photocatalytic material and its preparation method and application
CN107522227A (en) * 2017-08-22 2017-12-29 河南师范大学 A kind of method that ultrasonic method prepares the bismoclite flat crystal with oxygen defect
CN107790159A (en) * 2017-09-28 2018-03-13 浙江理工大学 Photochemical catalyst and its preparation and application of a kind of high selectivity catalysis oxidation alcohol into aldehyde
CN109174138A (en) * 2018-08-08 2019-01-11 江苏大学 A kind of Bi4O5I2The preparation method of ultra-thin hollow nano pipe light catalyst

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Study of PbBiO2X (X = Cl, Br and I) square nanoplates with efficient visible photocatalytic performance;Yanlong Yu等;《Applied Surface Science》;20170927;第428卷;844-850 *

Also Published As

Publication number Publication date
CN109794271A (en) 2019-05-24

Similar Documents

Publication Publication Date Title
Jin et al. Bismuth-rich bismuth oxyhalides for environmental and energy photocatalysis
Jiang et al. Facile in-situ Solvothermal Method to synthesize double shell ZnIn2S4 nanosheets/TiO2 hollow nanosphere with enhanced photocatalytic activities
CN109794271B (en) Ultra-thin PbBiO with oxygen-enriched defect2Preparation method and application of Br nanosheet
Xing et al. Synthesis of carbon doped Bi2MoO6 for enhanced photocatalytic performance and tumor photodynamic therapy efficiency
Du et al. Template-free synthesis of three-dimensional porous CdS/TiO2 with high stability and excellent visible photocatalytic activity
Dong et al. Synthesis of g-C3N4/BiVO4 heterojunction composites for photocatalytic degradation of nonylphenol ethoxylate
Gao et al. Combustion synthesis of Bi/BiOCl composites with enhanced electron–hole separation and excellent visible light photocatalytic properties
Jiang et al. Preparation of magnetically retrievable flower-like AgBr/BiOBr/NiFe2O4 direct Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity
Hasanvandian et al. Enhanced spatially coupling heterojunction assembled from CuCo2S4 yolk-shell hollow sphere capsulated by Bi-modified TiO2 for highly efficient CO2 photoreduction
Song et al. Recent advances in bismuth-based photocatalysts: Environment and energy applications
CN102698775A (en) BiOI-graphene visible light catalyst and preparation method thereof
CN108311165B (en) Preparation of BiOCl/SrFe12-xCoxO19Method for compounding magnetic photocatalytic material
Huang et al. In-situ fabrication of novel BiOCl/Bi5O7I 2D/3D heterostructures with enhanced photocatalytic activity
Mohamed et al. Facile fabrication of mesoporous In2O3/LaNaTaO3 nanocomposites for photocatalytic H2 evolution
Hou et al. One-step synthesis of OH-TiO2/TiOF2 nanohybrids and their enhanced solar light photocatalytic performance
Zhao et al. Novel and efficient cobalt catalysts synthesized by one-step solution phase reduction for the conversion of biomass derived ethyl levulinate
Hou et al. Construction of an all-solid-state Z-scheme Ag@ Ag3PO4/TiO2-(F2) heterostructure with enhanced photocatalytic activity, photocorrosion resistance and mechanism insight
Hu et al. Synergetic piezo-photocatalytic effect in ultrathin Bi2WO6 nanosheets for decomposing organic dye
Xia et al. Visible light assisted heterojunction composite of AgI and CDs doped ZIF-8 metal-organic framework for photocatalytic degradation of organic dye
Hu et al. CuAlO2/Bi2WO6: a novel p–n type composite with significantly enhanced visible-light photocatalytic reduction of Cr (VI)
Liu et al. CoNi bimetallic alloy cocatalyst-modified TiO2 nanoflowers with enhanced photocatalytic hydrogen evolution
Xie et al. Boosting the sonophotocatalytic performance of BiOCl by Eu doping: DFT and an experimental study
Zhou et al. Modification of BiOBr with cellulose nanocrystals to improve the photocatalytic performance under visible light
Dai et al. 0D/1D Co3O4 quantum dots/surface hydroxylated g-C3N4 nanofibers heterojunction with enhanced photocatalytic removal of pharmaceuticals and personal care products
Liaqat et al. Fabrication of novel BiVO4/Bi2O3 heterostructure with superior visible light induced photocatalytic properties

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
GR01 Patent grant
GR01 Patent grant