<strong>Cu<sub>2</sub>O/N,S-BiOBr</strong>复合光催化剂的制备及其降解性能

doi:10.11901/1005.3093.2025.303

材料研究学报

2026, Vol. 40

Issue (5): 333-342 DOI: 10.11901/1005.3093.2025.303

光催化专题

本期目录 | 过刊浏览

Cu₂O/N,S-BiOBr复合光催化剂的制备及其降解性能

刘丹阳¹^,², 景苗苗¹^,², 赵强¹^,²(

), 王俊丽¹^,²(

), 贾治芳¹^,², 李作鹏¹^,², 王科伟¹^,²(

), 郭永¹^,²

^1.山西大同大学化学与化工学院大同 037009
^2.山西省清洁能源材料联合实验室大同 037009

Synthesis of Cu₂O/N,S-BiOBr Composite Photocatalysts and Their Performance for Tetracycline Degradation

LIU Danyang¹^,², JING Miaomiao¹^,², ZHAO Qiang¹^,²(

), WANG Junli¹^,²(

), JIA Zhifang¹^,², LI Zuopeng¹^,², WANG Kewei¹^,²(

), GUO Yong¹^,²

^1.School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
^2.Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong 037009, China

引用本文:

刘丹阳, 景苗苗, 赵强, 王俊丽, 贾治芳, 李作鹏, 王科伟, 郭永. Cu₂O/N,S-BiOBr复合光催化剂的制备及其降解性能[J]. 材料研究学报, 2026, 40(5): 333-342.
Danyang LIU, Miaomiao JING, Qiang ZHAO, Junli WANG, Zhifang JIA, Zuopeng LI, Kewei WANG, Yong GUO. Synthesis of Cu₂O/N,S-BiOBr Composite Photocatalysts and Their Performance for Tetracycline Degradation[J]. Chinese Journal of Materials Research, 2026, 40(5): 333-342.

全文: PDF(9853 KB) HTML

摘要:

用水热法合成了Z型异质结Cu₂O/N,S-BiOBr复合光催化剂，并表征其组成、形貌、光电性质及其在可见光照射下对四环素(TC)的光催化降解性能，研究了Cu₂O负载量对这种催化剂在可见光下催化降解TC的性能和稳定性的影响及其机制。结果表明，Cu₂O掺杂量为10% (质量分数)的催化剂10%Cu₂O/N,S-BiOBr催化性能最优，在100 min内可降解85.63%的TC。这种催化剂光降解效率较高的原因是，在Cu₂O和N,S-BiOBr之间高效的界面电荷转移和协同作用提高了光生电子空穴对的分离效率，从而使其光催化降解性能提高。超氧自由基( $⋅$ O $2 -$ )和羟基自由基( $⋅$ OH)是光催化降解TC的主要活性物质。

关键词 ：复合材料, Cu₂O/N, S-BiOBr, 水热法, 光催化, 降解, 四环素

Abstract：

In this study, Cu₂O/N,S-BiOBr photocatalysts were successfully synthesized by hydrothermal method, and their performance for catalytic degradation of tetracycline (TC) under visible light irradiation was systematically evaluated. The results showed that when the doping amount of Cu₂O was 10% (mass fraction), the catalyst exhibited the optimal activity with a degradation rate of approximately 85.63% for TC within 100 min. This improved performance was mainly attributed to the efficient interfacial charge transfer and synergistic effect between Cu₂O and N,S-BiOBr, which enhanced the separation efficiency of photogenerated electron-hole pairs, thereby improving the photocatalytic degradation ability. The results of electron paramagnetic resonance (EPR) tests indicated that superoxide radicals ( $⋅$ O $2 -$ ) and hydroxyl radicals ( $⋅$ OH) were the main active substances in the photocatalytic degradation process of TC. This study provided a valuable reference for constructing efficient visible light-driven catalysts.

Key words： composite Cu₂O/N S-BiOBr hydrothermal method photocatalysis degradation tetracycline

收稿日期: 2025-10-16

ZTFLH:

O643

基金资助:国家自然科学基金(21908135);国家自然科学基金(21975146);国家自然科学基金(52203266);山西省留学回国人员科技活动择优资助(20240027);山西省省筹资金资助回国留学人员科研项目(2020-134);山西省省筹资金资助回国留学人员科研项目(2022-173);山西省省筹资金资助回国留学人员科研项目(2025-201);山西省自然科学研究面上项目(202403021211022);大同市应用基础研究项目(2025063)

通讯作者: 赵强，教授，zhaoqiangtylg@126.com，研究方向为光电降解污染物；
王俊丽，正高级实验师，wangjunlitylg@126.com，研究方向为低阶煤，光催化；
王科伟，教授，wangkewei@sxdtdx.edu.cn，研究方向为有机多孔材料

Corresponding author: ZHAO Qiang, Tel: 15934234565, E-mail: zhaoqiangtylg@126.com;
WANG Junli, Tel: 15934234500, E-mail: wangjunlitylg@126.com;
WANG Kewei, Tel: 15296621181, E-mail: wangkewei@sxdtdx.edu.cn

作者简介: 刘丹阳，女，2002年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2025.303 或 https://www.cjmr.org/CN/Y2026/V40/I5/333

图1 Cu2O/N,S-BiOBr复合光催化剂的制备示意图

图2 10%Cu2O/N、S-BiOBr, N,S-BiOBr和Cu2O的XRD谱

图3 BiOBr、Cu2O、N,S-BiOBr以及10%Cu2O/N,S-BiOBr的SEM照片和10%Cu2O/N,S-BiOBr的HRTEM图

图4 Cu2O/N,S-BiOBr, N,S-BiOBr和Cu2O的紫外-可见漫反射光谱和Cu2O、N,S-BiOBr的带隙

图5 Cu2O和N,S-BiOBr的Mott-Schottky曲线

图6 Cu2O/N,S-BiOBr, N,S-BiOBr和Cu2O的光电流响应曲线和电化学阻抗谱

图7 10%Cu2O/N,S-BiOBr复合光催化剂的XPS总谱以及Bi 4f，N 1s，Br 3d，O 1s，Cu 2p和S 2p的高分辨XPS谱

图8 N,S-BiOBr、Cu2O 和Cu2O/N,S-BiOBr光催化剂的光催化性能

表1 溴氧铋基光催化剂降解四环素光催化性能的比较

图9 10%Cu2O/N,S-BiOBr复合光催化剂在黑暗和光照条件下的EPR谱

图10 10%Cu2O/N,S-BiOBr复合光催化剂在可见光照射下活性物种捕获实验(IPA：异丙醇)

图11 在可见光下Cu2O/N,S-BiOBr光催化降解四环素的机理

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