湖南大学学报（自然科学版）2017，Vol.44Issue(12)：40-46,7.DOI:10.16339/j.cnki.hdxbzkb.2017.12.007
ZnO/g-C3N4复合材料的制备及其光催化性能研究
Preparation of ZnO /g-C3 N 4 Composite Photocatalyst with Enhanced Photocatalytic Activity
摘要
Abstract
ZnO /g-C3 N4 composite was prepared by one-step calcining .The microstructure and absorption property of the as-prepared samples were characterized by XRD ,SEM ,TEM ,FT-TR ,and UV-vis DRS .The results showed that ZnO particles distributed uniformly on the surface of g -C3 N4 ,and the light absorption edge of the composite had an obvious red shift compared with pure ZnO .Photocatalytic degradation of methyl orange solution experiments was conducted to evaluate photocatalytic activities of the as-prepared samples .The results indicated that ZnO /g-C3 N4 exhibited higher photocatalytic activity than pure ZnO and pure g-C3 N4 .The photocatalytic efficiency was 14 and 9 times as high as that of ZnO and g-C3 N4 ,respectively .The photocatalytic performance of the composite got promoted mainly due to the formation of heterogeneous structure between ZnO and g-C3 N4 ,which decreased recombination rate of photo-induced electron-hole pairs .Furthermore ,the composite had wider photoabsorption region compared with pure ZnO ,which increased utilization rate of solar energy .关键词
半导体/ZnO/g-C3N4/异质结/光催化活性Key words
semiconductor/ZnO/g-C3 N4/heterojunction/photocatalytic activity分类
化学化工引用本文复制引用
刘艳丽,刘倩..ZnO/g-C3N4复合材料的制备及其光催化性能研究[J].湖南大学学报（自然科学版）,2017,44(12):40-46,7.基金项目
国家自然科学基金青年资助项目(61404046) ,National Natural Science Foundatiom of China(61404046) （61404046）
