文献类型：期刊文献

英文题名：

High efficient photoreduction of U(VI) by a new synergistic photocatalyst of Fe3O4 nanoparticle on GO/g-C3N4 composites

作者：Bao, Linfa[1];Han, Jingjing[1,2];Wang, Huifang[1];Liu, Renrong[1];Qiu, Muqing[1];Hu, Baowei[1]

机构：[1]Shaoxing Univ, Sch Life Sci, Huangcheng West Rd 508, Shaoxing 312000, Peoples R China;[2]Zhejiang Shaoxing Ecol Environm Monitoring Ctr, Shaoxing 312000, Peoples R China

年份：2022

卷号：18

起止页码：4248

外文期刊名：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

收录：SCI-EXPANDED(收录号：WOS:000802887900008)、、EI(收录号：20223312563891)、Scopus(收录号：2-s2.0-85135701181)、WOS

基金：Financial supported from Plan Funding of Shaoxing University(21055012) are acknowledged.

语种：英文

外文关键词：Photocatalytic reduction; U(VI); Magnetic g-C3N4; Graphene oxide

外文摘要：In this study, a novel synergistic photocatalyst (Fe3O4/GO/g-C3N4 composites) were constructed by chemical precipitation of Fe3O4 nanoparticles on surface of GO/g-C3N4 suspension. The characterization results indicated that Fe3O4/GO/g-C3N4 composites exhibited high efficient separation of photogenerated electron-hole pair, narrow bandgap (~2.38 eV) and wide absorption range. The incorporation of Fe3O4 significantly increased the photo catalytic performance of GO/g-C3N4 composites due to synergistic effect. More than 90% of U(VI) was photo-reduced by Fe3O4/GO/g-C3N4 composites within 2 h under visible light irradiation. The trapping experiments and XPS analysis indicated that the photogenerated electrons and superoxide (center dot O-2) radicals are responsible for U(VI) removal. These findings indicated that magnetic g-C3N4 composites can be used as excellent candidates for the high efficient removal of U(VI) in actual environmental cleanup. (C)& nbsp;2022 The Author(s). Published by Elsevier B.V.& nbsp;