标题:A Z-Scheme Polyimide/AgBr@Ag Aerogel with Excellent Photocatalytic Performance for the Degradation of Oxytetracycline
作者:Zhao, Xinfu; Wang, Xinqiang; Zhang, Jian; Yi, Xibin
作者机构:[Zhao, Xinfu; Yi, Xibin] Qilu Univ Technol, Shandong Acad Sci, Adv Mat Inst, Shandong Prov Key Lab Special Silicone Containing, Jinan 250014, Shandong 更多
通讯作者:Yi, XB;Zhang, J;Zhang, Jian
通讯作者地址:[Yi, XB]Qilu Univ Technol, Shandong Acad Sci, Adv Mat Inst, Shandong Prov Key Lab Special Silicone Containing, Jinan 250014, Shandong, Peoples R China 更多
来源:CHEMISTRY-AN ASIAN JOURNAL
出版年:2019
卷:14
期:3
页码:422-430
DOI:10.1002/asia.201801561
关键词:antibiotics; heterogeneous catalysis; nanostructures; photocatalysis;; sol-gel processes
摘要:A novel Z-scheme polyimide (PI)/AgBr@Ag aerogel photocatalyst has been successfully synthesized by combining an in situ precipitation method and a supercritical drying method. The as-prepared PI/AgBr@Ag-50 (50 wt % AgBr@Ag in PI/AgBr@Ag) aerogel photocatalyst exhibited excellent photocatalytic activity for oxytetracycline degradation with a rate constant of 0.025 min(-1), which was 6.9 and 2.6 times higher than that of the PI aerogel or the AgBr@Ag nanoparticles, respectively. More significantly, the PI/AgBr@Ag-50 aerogel photocatalyst showed stable cycling, which could be attributed to the high mechanical strength and 3D network of the PI aerogel. The introduction of AgBr@Ag on PI with a heterojunction structure efficiently promoted the separation of electron-hole pairs by a Z-scheme mechanism. The reduced metallic Ag nanoparticles were found to function as centers for the transfer of electrons from AgBr to PI. This work has revealed a new application for the aerogel PI/AgBr@Ag photocatalyst in environmental protection.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:1
Scopus被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059681132&doi=10.1002%2fasia.201801561&partnerID=40&md5=4eedf7d152968df16d8a45b51171e6fe
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