摘要
通过水热法一步合成了一种{001}晶面暴露的片状Bi OCl和石墨烯(GS)复合材料.获得的Bi OCl/GS光催化剂用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和紫外-可见(UV-Vis)漫反射光谱表征.所制备的Bi OCl/GS光催化剂表现出紫外和可见光下(λ>400 nm)增强光催化降解甲基橙(MO)的性能.光催化活性的增强是因为{001}面的Bi OCl/GS能有效地抑制电荷复合、氧空位和光生电子转移效率高.
A series of composites of the high photoactivity of{001}facets exposed BiOCl and graphene sheets（GS）were synthesized via a one - step hydrothermal reaction. The obtained BiOCl/ GS photocatalysts were characterized by X - ray diffraction（XRD）,scanning electron microscopy（SEM）,transmission elec-tron microscopy（TEM）,Ultraviolet - visible（UV - Vis）diffuse reflectance spectroscopy. The as - pre-pared BiOCl/ GS photocatalyst showed enhanced photocatalytic activity for the degradation of methyl orange （MO）under UV and visible light（λ 〉 400 nm）. The enhanced photocatalytic activity could be attributed to oxygen vacancies of the{001}facets of BiOCl/ GS and the high migration efficiency of photo - induced e-lectrons,which could suppress the charge recombination effectively.
出处
《重庆文理学院学报（社会科学版）》
2015年第2期29-33,共5页
Journal of Chongqing University of Arts and Sciences（Social Sciences Edition)
基金
重庆文理学院学生创新创业项目
重庆市自然科学基金项目(CSTC2013JCYJA1128)
重庆文理学院引进人才基金项目(R2013CJ05)
关键词
氯氧铋纳米片
石墨烯
光催化剂
氧空位
可见光催化
BiOCl nanosheets
graphene
photocatalysts
oxygen vacancy
visible light catalysis
