文献类型：期刊文献

英文题名：Highly efficient visible-light-responsive Ag/BOHI photocatalyst for comprehensive antibiotic remediation in complex wastewater

作者：Wang, Sihan[1,2];Di, Lu[2];Zeng, Yifeng[1];Zhou, Yi[2,3];Luo, Xubiao[1];Zhou, Yanbo[1,2,3]

机构：[1]Jinggangshan Univ, Sch Life Sci, Key Lab Jiangxi Prov Funct Biol & Pollut Control R, Jian 343009, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[3]Minist Educ, Engn Res Ctr Resource Utilizat Carbon Containing W, Shanghai 200237, Peoples R China

年份：2026

卷号：568

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20262320858879);WOS:【SCI-EXPANDED(收录号:WOS:001792809300001)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant no. 52370168) and the Joint Fund for Regional Inno-vation and Development (Grant no. U25A20371) . The manuscript was written with contributions from all authors. All authors have approved the final version of the manuscript.

语种：英文

外文关键词：Photocatalyst; Sulfadiazine; Antibiotic degradation; Bactericidal

摘要：The widespread occurrence of antibiotics in aquatic environments poses increasing ecological and public health risks. In this work, a multifunctional Ag/BOHI (ABI) visible-light photocatalyst was rationally constructed via a two-step co-precipitation strategy. By integrating a Z-scheme heterojunction with Ag nanoparticles, the catalyst exhibited strong surface plasmon resonance (SPR) effects, significantly enhancing visible-light harvesting and charge separation. The optimized 3 wt% ABI catalyst achieved nearly complete degradation of sulfadiazine within 15 min under visible-light irradiation. In addition, the catalyst showed effective removal of other organic pollutants, including bisphenol A and 2,4-dichlorophenol. The photocatalyst maintained stable performance under various pH conditions and in the presence of coexisting anions or humic acid, demonstrating strong environmental adaptability. When applied to real livestock wastewater, the system achieved 61% COD and 48% TOC removal, confirming its practical applicability in complex water matrices. Furthermore, the catalystexhibited strong antibacterial activity, achieving complete inactivation of E. coli within 40 min and 97.1% inactivation of S. aureus within 2.5 h. Morphological observations revealed severe membrane disruption, indicating synergistic oxidative and structural damage to bacterial cells. Mechanistic studies identified singlet oxygen (1O2), superoxide radicals (& sdot;O2_ ), and photogenerated holes (h+) as the dominant reactive species responsible for pollutant degradation and bacterial inactivation. This SPR-enhanced Z-scheme Ag/BOHI photocatalytic system provides a promising strategy for simultaneous antibiotic degradation and antibiotic-resistant bacteria control in complex aquatic environments.