文献类型：期刊文献

英文题名：Photochemical Solid-Phase In Situ Anchoring of Single Atoms Ag/g-C3N4 for Enhanced Photocatalytic Activity

作者：Zhou, Jianwei[1];Duo, Fangfang[1];Jia, Chunyan[2];Zhou, Yuan[2];Wang, Chubei[1];Wei, Zhengyan[2]

通讯作者：Zhou, JW[1]

机构：[1]Xinxiang Univ, Inst Energy & Fuel, Xinxiang 453003, Henan, Peoples R China;[2]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang, Henan, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Xinxiang Univ, Inst Energy & Fuel, Xinxiang 453003, Henan, Peoples R China.|[110713]新乡学院化学化工学院;[11071]新乡学院;

年份：2021

卷号：38

期号：11

起止页码：1098-1107

外文期刊名：ENVIRONMENTAL ENGINEERING SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000614580900001)】；

基金：This research is supported by the Science and Technology Project of Henan (192102310496), the Project of Science and Technology Innovation of Xinxiang University (15ZP05), China.

语种：英文

外文关键词：graphite-like carbon nitride; heterostructure; photocatalysis; photochemical reduction; silver atoms

摘要：To realize the high-efficiency plasmonic hot-electron injection in photocatalytic pollutant elimination, Ag/g-C3N4 heterostructure photocatalyst was synthesized through a novel in situ photochemical solid-phase reduction approach. Transmission electron microscope images of the obtained samples showed that Ag atom was uniformly dispersed on the surface of g-C3N4 sheet, thus can fully utilize the local surface plasmon resonance of metallic Ag and then improve the photocatalytic performance of Ag/g-C3N4. It is reported that Ag/g-C3N4 heterojunction presented significantly enhanced sunlight absorption and inhibited the recombination of photoinduced carriers, and further reinforced the photocatalytic performance of g-C3N4 substrate. The 3 wt%-Ag/g-C3N4 exhibited the best catalytic activity toward rhodamine B (RhB) and phenol degradation under visible light irradiation, with apparent rate constants of 0.016 and 0.018 min(-1), which was 8 and 10 times that of pure g-C3N4, respectively. This work supplied an advanced approach for constructing efficient solar light-driven photocatalysts, which would be making a certain contribution to the control of water pollution.