期刊论文

Zhang, Lizhi

英文

催化学报

0253-9837

2015

36

12

2145-2154

10.1016/S1872-2067(15)60986-X

National Natural Science Funds for Distinguished Young ScholarsNational Natural Science Foundation of China (NSFC)National Science Fund for Distinguished Young Scholars [21425728]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21173093, 21177048, 21273088, 21477044]; Key Project of Natural Science Foundation of Hubei ProvinceNatural Science Foundation of Hubei Province [2013CFA114]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [CCNU14Z01001 CCNU14KFY002]

本校为第一且通讯机构

In this study, we showed that BiOBr nanoplates prepared at different pH values have substrate-dependent photocatalytic activities under visible-light irradiation. The BiOBr nanoplates synthesized at pH 1 (BOB-1) degraded salicylic acid more effectively than did those obtained at pH 3 (BOB-3), but the order of their photocatalytic activities in rhodamine B (RhB) degradation were reversed. Electrochemical Mott-Schottky and zeta-potential measurements showed that BOB-1 had a more positive valence band and lower surface charge, leading to superior ...

近年来,半导体光催化技术已广泛用于去除水中有机污染物.在各类光催化剂中,具有合适禁带宽度的溴氧铋(BiOBr,2.7 eV)材料吸引了众多研究者兴趣.通常情况下,半导体光催化降解有机污染物性能主要与光催化材料的结构性质,如物相组成、颗粒粒径、材料表面结构等相关.研究已经证实了TiO2光催化降解有机污染物具有底物依赖的特性,但是BiOBr的有机物降解特性与底物性质的关系研究尚未见文献报道.为发展高效的BiOBr太阳光催化污染净化技术,研究有机底物与BiOBr光催化降解性能的关系具有重要意义.本文分别在pH =1和pH =3条件下采用水热法合成了BiOBr纳米片(BOB-1和BOB-3),并通过X射线粉末衍射(XRD),扫描电...