异质结CeO<sub>2</sub>/BiOBr的构筑及其光催化降解罗丹明B

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摘要通过水热法合成了CeO₂、BiOBr和不同物质的量比的CeO₂/BiOBr复合光催化剂，采用不同的测试手段对光催化剂的形貌、结构和光电化学性能进行了表征，并通过可见光照射下罗丹明B （RhB）的降解来评价其光催化性能.结果表明，引入适量CeO₂（10%）的CeO₂/BiOBr （CB-10）异质结显著地增强了光催化活性，在30min内可降解99%的RhB，且表现出优异的可回收性和循环稳定性.另当pH值为3，复合催化剂与RhB浓度分别为0.5g/L、20mg/L时，降解效率在20min内可达最高（96.1%）.根据自由基捕获试验和催化剂的能带结构，提出了CeO₂/BiOBr异质结光催化过程可能的反应机理.研究结果可为制备Bi基复合催化剂提供一种新的思路与方法.

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	郭天宇
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	王红涛

关键词 ：光催化降解, CeO₂/BiOBr, 异质结, 罗丹明B

Abstract：In this study, CeO₂, BiOBr and CeO₂/BiOBr photocatalysts were synthesized by a hydrothermal method, and the morphology, structure and photoelectrochemical properties of the photocatalysts were characterized by different techniques. The photocatalytic performance was evaluated by degrading Rhodamine B (RhB) under visible light irradiation. The experimental results showed that the CeO₂/BiOBr (CB-10) catalyst with the appropriate amount of CeO₂ (10%) exhibited enhanced photocatalytic activity, recyclability and cycling stability and the degradation rate of RhB reached 99% within 30min. Furthermore, the catalyst attained the highest degradation efficiency (96.1%) within 20min when the catalyst dosage was 0.5g/L, the RhB concentration was 20mg/L and pH value was 3. The possible reaction mechanism of CeO₂/BiOBr heterojunctional material in photocatalytic process was proposed based on the radical capture test and the energy band structure of material. This study can provide a new idea and method for the preparation of Bi-based composite catalysts.

Key words： photocatalytic degradation CeO₂/BiOBr heterojunction Rhodamine B

收稿日期: 2023-04-23

PACS:

X703.5

基金资助:国家自然科学基金资助项目（51572185）；山西省应用基础研究计划项目（202203021211158，20210302123176）

通讯作者: 王红涛,副教授,wanghongtao@tyut.edu.cn E-mail: wanghongtao@tyut.edu.cn

作者简介: 郭天宇(1989-),女,山西太原人,讲师,博士,主要从事环境催化领域的研究.发表论文10余篇.tyguo1117x@163.com.

引用本文:

郭天宇, 范祥瑞, 白德豪, 祁彧, 王红涛. 异质结CeO₂/BiOBr的构筑及其光催化降解罗丹明B[J]. 中国环境科学, 2023, 43(11): 5845-5854. GUO Tian-yu, FAN Xiang-rui, BAI De-hao, QI Yu, WANG Hong-Tao. Construction of CeO₂/BiOBr heterojuction for photocatalytic degradation of Rhodamine B. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(11): 5845-5854.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2023/V43/I11/5845

[1]	Chankhanittha T, Nanan S. Visible-light-driven photocatalytic degradation of ofloxacin (OFL) antibiotic and Rhodamine B (RhB) dye by solvothermally grown ZnO/Bi2MoO6 heterojunction [J]. Journal of Colloid and Interface Science, 2021,582:412-427.
[2]	Xu L, Gong D, Celi N, et al. Biohybrid magnetic microrobots for enhanced photocatalytic RhB degradation and E.coli inactivation under visible light irradiation [J]. Applied Surface Science, 2022,579:152165.
[3]	Li Y, Zheng X, Yang J, et al. Enhanced photocatalytic degradation of 2,4,6-trichlorophenol and RhB with RhB-sensitized BiOClBr catalyst based on response surface methodology [J]. Journal of the Taiwan Institute of Chemical Engineers, 2021,119:213-223.
[4]	Cheng T, Gao H, Liu G, et al. Preparation of core-shell heterojunction photocatalysts by coating CdS nanoparticles onto Bi4Ti3O12 hierarchical microspheres and their photocatalytic removal of organic pollutants and Cr(VI) ions [J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2022,633:127918.
[5]	Zhou Y, Lu J, Zhou Y, et al. Recent advances for dyes removal using novel adsorbents:A review [J]. Environmental Pollution, 2019,252:352-365.
[6]	Pei H, Jia Q, Guo R, et al. Flower-like CeO2/CdS quantum dots heterojunction nanocomposites with high photocatalytic activity for RhB degradation [J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2022,648:129256.
[7]	Du C, Zhang Y, Zhang Z, et al. Fe-based metal organic frameworks (Fe-MOFs) for organic pollutants removal via photo-Fenton:A review [J]. Chemical Engineering Journal, 2022,431:133932.
[8]	蒋军,倪千千,可欣,等.脯氨酸掺杂g-C3N4纳米片的制备及其对RhB的降解[J]. 中国环境科学, 2022,42(7):3112-3120. Jiang J, Ni Q Q, Ke X, et al. Preparation of g-C3N4 nanosheets doped with proline and its degradation of RhB [J]. China Environmental Science, 2022,42(7):3112-3120.
[9]	刘海成,孟无霜,黄哲,等.WO3/BiOCl0.7I0.3光催化剂的制备及其光催化降解机理[J]. 化工进展, 2023,42(1):255-264. Liu H C, Meng W S, Huang Z, et al. Preparation of WO3/BiOCl0.7I0.3 photocatalyst and its photocatalytic degradation mechanism [J]. Chemical Industry and Engineering Progress, 2023,42(1):255-264.
[10]	Huang L, Liu J, Li P, et al. CQDs modulating Z-scheme g-C3N4/BiOBr heterostructure for photocatalytic removing RhB, BPA and TC and E. coli by LED light [J]. Journal of Alloys and Compounds, 2022, 895:162637.
[11]	Jian L, Li S, Sun H, et al. Structure-induced highly selective adsorption and photocatalytic pollutant degradation performance of BiOBr [J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2022,652:129919.
[12]	Geng Z, Zhang L, Wang J, et al. BiOBr precursor solutions modified cement paste:The photocatalytic performance and effects [J]. Crystals, 2021,11(8):969.
[13]	Liu J, Huang L, Li Y, et al. Construction of oxygen vacancy assisted Z-scheme BiO2-x/BiOBr heterojunction for LED light pollutants degradation and bacteria inactivation [J]. Journal of Colloid and Interface Science, 2021,600:344-357.
[14]	王峰,张顺鑫,余方博,等.光催化CO2还原制碳氢燃料系统优化策略研究[J]. 化工学报, 2023,74(1):29-44. Wang F, Zhang S X, Yu F B, et al. Optimization strategy for producing carbon based fuels by photocatalytic CO2 reduction [J]. CIESC Journal, 2023,74(1):29-44.
[15]	Tran D P H, Pham M T, Bui X T, et al. CeO2 as a photocatalytic material for CO2 conversion:A review [J]. Solar Energy, 2022,240:443-466.
[16]	Naidi S N, Harunsani M H, Tan A L, et al. Green-synthesized CeO2 nanoparticles for photocatalytic, antimicrobial, antioxidant and cytotoxicity activities [J]. Journal of Materials Chemistry B, 2021,9:5599-5620.
[17]	Wang X, Xu H, Luo X, et al. Enhanced photocatalytic properties of CeO2/TiO2 heterostructures for phenol degradation [J]. Colloid and Interface Science Communications, 2021,44:100476.
[18]	Liu G, Hou G, Mao X, et al. Rational design of CeO2/Bi7O9I3 flower-like nanosphere with Z-scheme heterojunction and oxygen vacancy for enhancing photocatalytic activity [J]. Chemical Engineering Journal, 2022,431:133254.
[19]	Zheng Y, Sun M, Sun W, et al. Nitrogen-doped graphyne/BiOBr nanocomposites:In-situ sonochemical synthesis and boosted photocatalytic performance [J]. Separation and Purification Technology, 2022,301:122062.
[20]	Liu C, Mao S, Shi M, et al. Peroxymonosulfate activation through 2D/2D Z-scheme CoAl-LDH/BiOBr photocatalyst under visible light for ciprofloxacin degradation [J]. Journal of Hazardous materials, 2021,420:126613.
[21]	Zhao X, Guan J, Li J, et al. CeO2/3D g-C3N4 heterojunction deposited with Pt cocatalyst for enhanced photocatalytic CO2 reduction [J]. Applied Surface Science, 2021,537:147891.
[22]	Li J, Wang S, Sun G, et al. Facile preparation of MgAl2O4/CeO2/Mn3O4 heterojunction photocatalyst and enhanced photocatalytic activity [J]. Materials Today Chemistry, 2021,19:100390.
[23]	Zhang B, Hu X, Liu E, et al. Novel S-scheme 2D/2D BiOBr/g-C3N4 heterojunctions with enhanced photocatalytic activity [J]. Chinese Journal of Catalysis, 2021,42(9):1519-1529.
[24]	Wang Q, Yu Z, Chen Q, et al. MOF-templated core-shell CoSx@BiOBr Z-type heterojunction degradation of multiple antibiotics [J]. Separation and Purification Technology, 2022,300:121781.
[25]	Wang B, Cai Z, Zhong J, et al. Rich oxygen vacancies facilitated photocatalytic performance of BiOBr induced by carbon black [J]. Solid State Sciences, 2022,132:106985.
[26]	綦毓文,魏砾宏,石冬妮,等.UiO-66/BiVO4复合光催化剂的制备及其对四环素的光解[J]. 中国环境科学, 2021,41(3):1162-1171. Qi Y W, Wei L H, Shi D N, et al. Preparation of UiO-66/BiVO4 composite photocatalyst and its photodegradation of tetracycline [J]. China Environmental Science, 2021,41(3):1162-1171.
[27]	Liu K, Zhang H, Muhammad Y, et al. Fabrication of n-n isotype BiOBr-Bi2WO6 heterojunctions by inserting Bi2WO6 nanosheets onto BiOBr microsphere for the superior photocatalytic degradation of Ciprofloxacin and tetracycline [J]. Separation and Purification Technology, 2021,274:118992.
[28]	Li Y, Zhang J, Chen L, et al. Construction of flower-like Zn2+/BiOBr with enhanced visible photocatalytic activity for the degradation of levofloxacin [J]. Inorganic Chemistry Communications, 2023,148:110277.
[29]	Sun X, He W, Hao X, et al. Surface modification of BiOBr/TiO2 by reduced AgBr for solar-driven PAHs degradation:Mechanism insight and application assessment [J]. Journal of Hazardous materials, 2021,412:125221.
[30]	Liang L, Gao S, Zhu J, et al. The enhanced photocatalytic performance toward carbamazepine by nitrogen-doped carbon dots decorated on BiOBr/CeO2:Mechanism insight and degradation pathways [J]. Chemical Engineering Journal, 2020,391:123599.
[31]	Liu X, Ni Z, He Y, et al. Ultrasound-assisted two-step water-bath synthesis of g-C3N4/BiOBr composites:Visible light-driven photocatalysis, sterilization, and reaction mechanism [J]. New Journal of Chemistry, 2019,43(22):8711-8721.
[32]	Zahid A H, Han Q, Jia X, et al. Highly stable 3D multilayered nanoparticles-based β-Bi2O3 hierarchitecture with enhanced photocatalytic activity [J]. Optical Materials, 2020,109:110389.
[33]	郭冀峰,李靖,孙泽鑫,等.Ag3PO4/Cu-BiVO4p-n异质结的制备及其增强可见光催化降解四环素性能[J]. 中国环境科学, 2022,42(1):146-159. Guo J F, Li J, Sun Z X, et al. Synthesis of Ag3PO4/Cu-BiVO4p-n heterojunction and enhancement of its visible-light photocatalytic degradation of tetracycline [J]. China Environmental Science, 2022, 42(1):146-159.
[34]	Lai C Xu F, Zhang M, et al. Facile synthesis of CeO2/carbonate doped Bi2O2CO3 Z-scheme heterojunction for improved visible-light photocatalytic performance:Photodegradation of tetracycline and photocatalytic mechanism [J]. Journal of Colloid and Interface Science, 2021,588:283-294.
[35]	Gao K, Bai X, Zhang Y, et al. N-doped graphene quantum dots embedded in BiOBr nanosheets as hybrid thin film electrode for quantitative photoelectrochemical detection paracetamol [J]. Electrochimica Acta, 2019,318:422-429.
[36]	Wang Z, Jiang L, Wang K, et al. Novel AgI/BiSbO4 heterojunction for efficient photocatalytic degradation of organic pollutants under visible light:Interfacial electron transfer pathway, DFT calculation and degradation mechanism study [J]. Journal of Hazardous Materials, 2021,410:124948.
[37]	马心全,李喜宝,陈智,等.S型异质结BiOBr/ZnMoO4的构建及光催化降解性能研究[J]. 无机材料学报, 2023,38(1):62-73. Ma X Q, Li X B, Chen Z, et al. BiOBr/ZnMoO4 Step-scheme Heterojunction:Construction and Photocatalytic Degradation Properties [J]. Journal of Inorganic Materials, 2023,38(1):62-73.
[38]	县涛,高宇姝,孙小锋,等.修饰AuAg合金纳米颗粒对BiOBr纳米片光催化降解和还原性能的提高[J]. 材料导报, 2022,36(13):54-61. Xian T, Gao Y S, Sun X F, et al. Enhanced photocatalytic degradation and reduction activity of BiOBr nanoplates by the decoration of auAg alloy nanoparticles [J]. Materials Reports, 2022,36(13):54-61.
[39]	Lu M, Xiao X, Xiao Y, et al. One-pot hydrothermal fabrication of 2D/2D BiOIO3/BiOBr Z-scheme heterostructure with enhanced photocatalytic activity [J]. Journal of Colloid and Interface Science, 2022,625:664-679.
[40]	Hayati F, Isari A A, Anvaripour B, et al. Ultrasound-assisted photocatalytic degradation of sulfadiazine using MgO@CNT heterojunction composite:Effective factors, pathway and biodegradability studies [J]. Chemical Engineering Journal, 2020,381:122636.
[41]	常耀萍,官修帅,郑谦,等.水热法制备3D花球状Bi2SiO5及其光催化油酸酯化反应[J]. 化工进展, 2022,41(8):4181-4191. Chang Y P, Guan X S, Zheng Q, et al. Hydrothermal preparation of 3D flower-spherical Bi2SiO5 for photocatalytic esterification of oleic acid [J]. Chemical Industry and Engineering Progress, 2022,41(8):4181-4191.
[42]	Liang Q, Liu X, Wang J, et al. In-situ self-assembly construction of hollow tubular g-C3N4 isotype heterojunction for enhanced visible-light photocatalysis:Experiments and theories [J]. Journal of Hazardous materials, 2021,401:123355.
[43]	Ahmad M, Rehman W, Khan M M, et al. Phytogenic fabrication of ZnO and gold decorated ZnO nanoparticles for photocatalytic degradation of Rhodamine B [J]. Journal of Environmental Chemical Engineering, 2021,9(1):104725.
[44]	Chang C W, Hu C. Graphene oxide-derived carbon-doped SrTiO3 for highly efficient photocatalytic degradation of organic pollutants under visible light irradiation [J]. Chemical Engineering Journal, 2020,383:123116.
[45]	李冬梅,卢文聪,梁奕聪,等.Bi5O7I/g-C3N4Z型异质结的常温沉淀制备及其光催化性能研究[J]. 中国环境科学, 2021,41(9):4120-4126. Li D M, Lu W C, Liang Y C, et al. Room-temperature precipitation synthesis and photocatalysis of Bi5O7I/g-C3N4Z-scheme heterojunction [J]. China Environmental Science, 2021,41(9):4120-4126.
[46]	You J, Wang L, Bao W, et al. Synthesis and visible-light photocatalytic properties of BiOBr/CdS nanomaterial [J]. Journal of Materials Science, 2021,56:6732-6744.