文献类型：期刊文献

英文题名：In situ strategy to prepare PDPB/SnO2 p-n heterojunction with a high photocatalytic activity

作者：Wang, Yuhang[1];Deng, Yuanxin[1];Fan, Linggang[1];Zhao, Yu[1];Shen, Bin[1];Wu, Di[1];Zhou, Yi[1];Dong, Chencheng[1];Xing, Mingyang[1];Zhang, Jinlong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Inst Fine Chem, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：7

期号：39

起止页码：24064

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20172803903195);WOS:【SCI-EXPANDED(收录号:WOS:000401525500021)】；

基金：This study has been supported by the National Natural Science Foundation of China (21577036, 21377038, 21237003 and 21677048) and the State Key Research Development Program of China (2016YFA0204200) and sponsored by the "Chenguang Program" supported by the Shanghai Education Development Foundation and the Shanghai Municipal Education Commission (14CG30, 16JC1401400) and the Fundamental Research Funds for the Central Universities (22A201514021).

语种：英文

外文关键词：Dyes - Light - organic-inorganic materials - Heterojunctions - Photodegradation - Photocatalysis - Light absorption - Nanofibers

摘要：As a novel material for water depollution, conjugated polydiphenylbutadiyne (PDPB) nanofibers have received attention due to their visible light responsive photocatalytic activity. In this study, we successfully prepared a PDPB/SnO2 p-n heterojunction by an in situ growth route. The XPS characterization indicates the generation of Sn-C bonds between SnO2 and PDPB, which would decrease the bandgap of SnO2 and promote the transference efficiency of electrons and holes between these two components. The PDPB could act as the sensitizer to enlarge the solar light absorption region of the heterojunction. The SnO2 provides a stable mesoporous structure and enhanced hydrophilic properties. The solar-driven photodegradation rate of Rhodamine B over the PDPB/SnO2 (ratio is 2 : 1) is 4 times higher than that of the pure SnO2 and 2 times higher than that of the pure PDPB nanofibers. Our strategy gives a facile strategy for the preparation of an organic-inorganic hybrid heterojunction with high solar light activity.