文献类型：期刊文献

英文题名：In situ synthesis of a Bi2O3 quantum dot decorated BiOCl heterojunction with superior photocatalytic capability for organic dye and antibiotic removal

作者：Zhang, Mingliang[1,2];Duo, Fangfang[2];Lan, Jihong[2];Zhou, Jianwei[2];Chu, Liangliang[2];Wang, Chubei[2];Li, Lixiang[1,3]

第一作者：Zhang, Mingliang;张明亮

通讯作者：Li, LX[1];Li, LX[2]

机构：[1]Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Energy Mat & Electrochem Liaoning Prov, 185 Qianshanzhong Rd, Anshan 114051, Liaoning, Peoples R China;[2]Xinxiang Univ, Henan Photoelectrocatalyt Mat & Micronano Applicat, Xinxiang 453003, Henan, Peoples R China;[3]Hainan Univ, Sch Chem Engn & Technol, State Key Lab Marine Resource Utilizat South China, Hainan Prov Key Lab Fine Chem, Haikou 570228, Peoples R China

第一机构：Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Energy Mat & Electrochem Liaoning Prov, 185 Qianshanzhong Rd, Anshan 114051, Liaoning, Peoples R China

通讯机构：[1]corresponding author), Univ Sci & Technol Liaoning, Sch Chem Engn, Key Lab Energy Mat & Electrochem Liaoning Prov, 185 Qianshanzhong Rd, Anshan 114051, Liaoning, Peoples R China;[2]corresponding author), Hainan Univ, Sch Chem Engn & Technol, State Key Lab Marine Resource Utilizat South China, Hainan Prov Key Lab Fine Chem, Haikou 570228, Peoples R China.

年份：2023

卷号：13

期号：9

起止页码：5674-5686

外文期刊名：RSC ADVANCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000931004100001)】；

基金：The financial support from National Natural Science Foundation of China (NSFC, No. 51872131, 51672118 and 51972156) and the Distinguished Professor Project of Education Department of Liaoning are acknowledged.

语种：英文

外文关键词：Antibiotics - Charge transfer - Chemical bonds - Chlorine compounds - Heterojunctions - Nanocrystals - Nanosheets - Photocatalytic activity - Quantum chemistry - Semiconductor quantum dots

摘要：As a decoration method, coupling a photocatalyst with semiconductor quantum dots has been proven to be an efficient strategy for enhanced photocatalytic performance. Herein, a novel BiOCl nanosheet decorated with Bi2O3 quantum dots (QDs) was first synthesized by a facile one-step in situ chemical deposition method at room temperature. The as-prepared materials were characterized by multiple means of analysis. The Bi(2)O(3)QDs with an average diameter of about 8.0 nm were uniformly embedded on the surface of BiOCl nanosheets. The obtained Bi(2)O(3)QDs/BiOCl exhibited significantly enhanced photocatalytic performance on the degradation of the rhodamine B and ciprofloxacin, which could be attributed to the band alignment, the photosensitization effect and the strong coupling between Bi2O3 and BiOCl. In addition, the dye photosensitization effect was demonstrated by the monochromatic photodegradation experiments. The radical trapping experiments and the ESR testing demonstrated the type II charge transfer route of the heterojunction. Finally, a reasonable photocatalytic mechanism based on the relative band positions was discussed to illustrate the photoreaction process. These findings provide a good choice for the design and potential application of BiOCl-based photocatalysts in water remediation.