化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (9) : 204-210. DOI: 10.19817/j.cnki.issn1006-3536.2025.09.015

科学研究

BiOBr/α-Bi₂O₃异质结复合物的构建及其光催化性能研究

李娟, 高亚辉, 吴春来, 窦宝宝, 张毅博, 张梦琪

作者信息 +

Construction of BiOBr/α-Bi₂O₃ heterojunction composites and their photocatalytic performance

Li Juan, Gao Yahui, Wu Chunlai, Dou Baobao, Zhang Yibo, Zhang Mengqi

Author information +

文章历史 +

Received		Published
2024-08-12		2025-09-20
Issue Date	Revised Date
2025-09-16	2024-08-12

PDF

摘要

采用原位沉淀法构建BiOBr/α-Bi₂O₃异质结复合物,在α-Bi₂O₃微棒表面紧密组装BiOBr纳米片。与单一α-Bi₂O₃或BiOBr相比,BiOBr/α-Bi₂O₃异质结复合物表现出更优的可见光下催化降解环丙沙星(CIP)和灭活大肠杆菌(E.coli)的性能,其中BOB/BO-3具有最优的光催化活性,60min时CIP的降解率可达86.8%,其反应速率常数为α-Bi₂O₃和BiOBr的12.8倍和4.0倍,100min可将菌液浓度为1×10⁷cfu/mL的E.coli全部灭活。基于匹配的能带结构、良好的异质结界面和高效的光生载流子分离,BiOBr/α-Bi₂O₃异质结复合物展现出优异的光催化性能,空穴(h⁺)和羟基自由基(·OH)是氧化降解CIP和破坏E.coli细胞的主要活性基团。

Abstract

BiOBr/α-Bi₂O₃ heterojunction composites were constructed by in-situ precipitation method,and BiOBr nanosheets were tightly assembled on the surface of α-Bi₂O₃ microrods.Compared with α-Bi₂O₃ or BiOBr,BiOBr/α-Bi₂O₃ heterojunction composites exhibited superior performance for the photocatalytic degradation of ciprofloxacin (CIP) and inactivation of E.coli under visible light.Among them,BOB/BO-3 displayed the optimal photocatalytic activity,achieving a CIP degradation rate of 86.8% at 60 min,and the reaction rate constants were 12.8 and 4.0 times higher than those of α-Bi₂O₃ and BiOBr.In addition,1×10⁷cfu/mL E.coli were all inactivated by BOB/BO-3 at 100min.Based on the matched band structure,good heterojunction interface and efficient photogenerated carrier separation,BiOBr/α-Bi₂O₃ heterojunction composites exhibited excellent photocatalytic performance.Hole (h⁺) and hydroxyl radical (·OH) were the main oxidizing active groups for the degradation of CIP and the destruction of E.coli cells.

关键词

BiOBr/α-Bi₂O₃复合物 / 光催化 / 降解 / 环丙沙星 / 灭菌

Key words

BiOBr/α-Bi₂O₃ composites / photocatalysis / degradation / ciprofloxacin / sterilization

引用本文

引用格式 ▾

BiOBr/α-Bi₂O₃异质结复合物的构建及其光催化性能研究[J]. 化工新型材料, 2025, 53(9): 204-210 DOI:10.19817/j.cnki.issn1006-3536.2025.09.015

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] Shi H,Xie Y,Wang W,et al.In-situ construction of step-scheme MoS₂/Bi₄O₅Br₂ heterojunction with improved photocatalytic activity of rhodamine B degradation and disinfection[J].Journal of Colloid and Interface Science,2022,623:500-512.
[2] Carey J H,Lawrence J,Tosine H M.Photodechlorination of PCB's in the presence of titanium dioxide in aqueous suspensions[J].Bulletin of Environmental Contamination and Toxicology,1976,16(6):697-701.
[3] Matsunaga T,Tomoda R,Nakajima T,et al.Photoelectrochemical sterilization of microbial cells by semiconductor powders[J].Fems Microbiology Letters,1985,29(1/2):211-214.
[4] Ma B,Zha Y,Xu R,et al.Hollow α-Bi₂O₃/TiO₂ nanotube arrays hierarchical heterojunction with strong interface interaction for efficient photocatalytic ciprofloxacin degradation[J].Journal of Water Process Engineering,2024,60:105134.
[5] Wang J,Jin C Z,Yang X A,et al.Effect of SrTiO₃ amount and ultrasonic disperse on the thickness of Bi₂O₃ nanosheets and the photocatalytic performance of the composite α-Bi₂O₃/SrTiO₃[J].Applied Surface Science,2023,639:158182.
[6] Huang Y,Qin J,Hu C,et al.Cs-doped α-Bi₂O₃ microplates:hydrothermal synthesis and improved photochemical activities[J].Applied Surface Science,2019,473:401-408.
[7] Sun D,Cai J,Yang Y,et al.Boosting the visible light photo-thermal catalytic performance of α-Bi₂O₃ by tuning Fe doping amount in carbonylation of isobutyl amine with CO₂[J].Chemical Engineering Science,2024,284:119454.
[8] Huang Y,Qin J,Liu X,et al.Hydrothermal synthesis of flower-like Na-doped α-Bi₂O₃ and improved photocatalytic activity via the induced oxygen vacancies[J].Journal of the Taiwan Institute of Chemical Engineers,2019,96:353-360.
[9] Gao Y,Song T,Guo X,et al.Electronic interaction and oxgen vacancy engineering of g-C₃N₄/α-Bi₂O₃ Z-scheme heterojunction for enhanced photocatalytic aerobic oxidative homo-/he-tero-coupling of amines to imines in aqueous phase[J].Green Carbon,2023,1(2):105-117.
[10] Wu G,Zhao Y,Zhao J.Facile synthesis of novel round-cake-like α-Bi₂O₃ hierarchical architectures for extended visible-light photocatalytic performance[J].Materials Research Bulletin,2022,146:111594.
[11] Devi M S,Abinaya S,Maiyalagan T,et al.Nanorods of α-Bi₂O₃ for photocatalytic degradation of methylene blue[J].Materials Today:Proceedings,2022,50:2840-2846.
[12] Yin J,Chen X,Li G,et al.Construction of charge transfer chain in Bi₁₂TiO₂₀-Bi₄Ti₃O₁₂/α-Bi₂O₃ composites to accelerate photogenerated charge separation[J].Nano Research,2023,16(3):3730-3740.
[13] Guan H,Wang Q,Feng Y,et al.Preparation of binary type Ⅱ α-Bi₂O₃/Bi₁₂TiO₂₀ cross-shaped heterojunction with enhanced visible light photocatalytic performance[J].ACS Applied Electronic Materials,2022,4(3):1132-1142.
[14] Chen J,Zhong J,Li J,et al.Boosted photocatalytic removal of tetracycline on S-scheme Bi₁₂O₁₇Cl₂/α-Bi₂O₃ heterojunctions with rich oxygen vacancies[J].Applied Surface Science,2021,563:150246.
[15] Ji X,Wang Q,Lu J F,et al.Construction of a novel Ca₂Bi₂O₅/α-Bi₂O₃ semiconductor heterojunction for enhanced visible photocatalytic application[J].Ceramics International,2020,46(9):13630-13640.
[16] Imam S S,Adnan R,Mohd Kaus N H.The photocatalytic potential of BiOBr for wastewater treatment:a mini-review[J].Journal of Environmental Chemical Engineering,2021,9(4):105404.
[17] Meng L,Qu Y,Jing L.Recent advances in BiOBr-based photocatalysts for environmental remediation[J].Chinese Chemical Letters,2021,32(11):3265-3276.
[18] Liu K,Wang L,Fu T,et al.Oxygen-functionalized Ti₃C₂ MXene/exfoliated montmorillonite supported S-scheme BiOBr/Bi₂MoO₆ heterostructures for efficient photocatalytic quinolone antibiotics degradation[J].Chemical Engineering Journal,2023,457:141271.
[19] Zhu Y,Xu J,Chen M.Synthesis of La₂Ti₂O₇/Bi₅O₇I photocatalysts with improved photocatalytic activity for degradation of CIP under visible light[J].Separation and Purification Technology,2022,282:120004.
[20] Lu C,Wang L,Yang D,et al.Boosted tetracycline and Cr(Ⅵ) simultaneous cleanup over Z-scheme BiPO₄/CuBi₂O₄ p-n heterojunction with 0D/1D trepang-like structure under simulated sunlight irradiation[J].Journal of Alloys and Compounds,2022,919:165849.
[21] Zhao L,Li L,Liu C,et al.Energy-saving piezoelectric pipe functionalized by C₃N₅/polyvinylidene fluoride composites for enhanced degradation of ciprofloxacin[J].Chemical Engineering Science,2024,287:119696.
[22] Tang Y,Pi X,Li H,et al.Enhanced degradation of E2/EE2 by BiPO₄/AgI/BC composite photocatalysts via BC-enhanced·O₂[J].Journal of Environmental Chemical Engineering,2024,12(5):113360.
[23] Yang W,Sun K,Wan J,et al.Boosting holes generation and O₂ activation by bifunctional NiCoP modified Bi₄O₅Br₂ for efficient photocatalytic aerobic oxidation[J].Applied Catalysis B:Environmental,2023,320:121978.
[24] Yang Y Y,Niu C G,Huang D W,et al.Appropriate oxygen vacancies and Mo-N bond synergistically modulate charge transfer dynamics of MoO_3-x/S-CN for superior photocatalytic disinfection:unveiling synergistic effects and disinfection mechanism[J].Journal of Hazardous Materials,2023,445:130481.
[25] Ming J,Liu N,Ma Q,et al.Bactericidal process and practicability for environmental water sterilization by solar-light-driven Bi₂WO₆-based photocatalyst[J].Journal of Water Process Engineering,2022,47:102713.