文献类型：期刊文献

英文题名：Photocatalytic degradation of tetracycline hydrochloride with visible light-responsive bismuth tungstate/conjugated microporous polymer

作者：Pan, Fenghongkang[1,2];Wang, Yimeng[1,2,3];Zhao, Kaiqing[1,2];Hu, Jun[1,2];Liu, Honglai[1,2];Hu, Ying[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[3]Prinbury Biopharm Co Ltd, Shanghai 201203, Peoples R China

年份：2022

卷号：41

起止页码：488

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20220211450896);WOS:【SCI-EXPANDED(收录号:WOS:000760276300045)】；

基金：This work is supported by the National Natural Science Foundation of China (91834301 and 21878076) and the Science and Technology Commission of Shanghai Municipality (19160712100).

语种：英文

外文关键词：Photochemistry; Degradation; Visible light response; Pollution; Inorganic/organic heterojunction composite

摘要：Conjugated microporous polymer (CMP) is an emerging organic semiconductor with pi-conjugated skeletons, and the bandgap of CMP can be flexibly modulated to harvest visible light. Based on the diversity and adjustability of monomers in CMP, we designed and synthesized donor-accepter (D-A) type BTN-CMP through Sonogashira-Hagihara cross-coupling polymerization, further in situ constructing series of inorganic/organic Z-scheme BW/BTN-n composite in the presence of Bi2WO6. After optimization, the tetracycline hydrochloride (C-0 = 10 mg.L-1) degradation efficiency reached 84% with BW/BTN-2 as catalyst in 90 min under visible light irradiation, the apparent rate constant k(1) is 0.017 min(-1), which is 1.7 and 5.7 times higher than bare Bi2WO6 and BTN-CMP. X-ray photoelectron spectra and UV-Vis diffuse spectra showed that the enhanced photocatalytic activity originated from the tight heterojunction between Bi2WO6 and BTN-CMP, which can extend the light absorption range and facilitate the separation and transport of photogenerated charges in the interface of heterojunction. The active species trapping experiments and electron spin resonance technique revealed that h(+) was the dominant active species during the photodegradation process of tetracycline hydrochloride (TCH). The present study demonstrated the feasibility to construct inorganic/organic composite for the photocatalytic degradation of environmental pollutants. (C) 2021 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.