期刊论文

中文

南华大学学报(自然科学版)

1673-0062

2016

30

2

103-106

10.3969/j.issn.1673-0062.2016.02.021

湖南省教育厅科学研究优秀青年基金资助项目（13B100）；

本校为第一机构

采用水热法制得了分别择优暴露{110}、{010}和{001}晶面的BiOBr.XRD研究结果显示,相应样品{110}与{102}衍射峰的强度之依次减小;可见光下BiOBr光催化降解环丙沙星的实验结果表明,BiOBr{110}、BiOBr{010}和BiOBr{001}上环丙沙星降解反应速率常数依次为0.008 9、0.001 2和0.000 9 min-1,即暴露的{110}晶面越多,其光催化降解环丙沙星的活性越高.BiOBr{110}晶面具有强的内电场,应是其高催化性能的内在原因.

The BiOBr samples with { 110},{ 010} or { 001} facets were obtained by hydrothermal methods.The results of XRD show that their intensity ratios of diffraction peak{ 110} to { 102} decrease accordingly.The reaction rate constants of BiOBr{ 110},BiOBr{ 010} and BiOBr{ 001} for photocatalytic decomposing ciprofloxacin under visible light irradiation were 0.008 9,0.001 2 and 0.000 9 min-1,respectively.That is to say,the more the{ 110} facets exposed,the higher the photocatalytic efficiency of BiOBr.The strong internal electric field of BiOBr with { 110} facets is sho...