摘要
This study investigated the visible-light catalysis mediated by zeolite NaY on the oxidation of dyes with H2O2. The results demonstrated that zeolite NaY acts as a sink for the electron from the photo-excited dye in the heterogeneous catalysis. Furthermore, the electron can effectively activate H2O2 to produce ?OH radical that is a powerful oxidant for the oxidation of dye at room temperature. The effects of the framework topology, Si/Al ratio, and exchangeable cation of the zeolite on the oxidation of various dyes were also shown.
This study investigated the visible-light catalysis mediated by zeolite NaY on the oxidation of dyes with H2O2.The results demonstrated that zeolite NaY acts as a sink for the electron from the photo-excited dye in the heterogeneous catalysis.Furthermore,the electron can effectively activate H2O2 to produce ''OH radical that is a powerful oxidant for the oxidation of dye at room temperature.The effects of the framework topology,Si/Al ratio,and exchangeable cation of the zeolite on the oxidation of various dyes were also shown.
作者
LIU LiLi1, MA WanHong1, SONG WenJing1, CHEN ChunCheng1, LIN Jun2, ZHAO JinCai1, QIAN XinHua3 & ZHANG ShiBo3 1 Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
2 Department of Chemistry, Renmin University of China, Beijing 100872, China
3 Fushun Petrochemical Company, PetroChina Company Limited, Fushun 113008, China
基金
Supported by the 973 Program of China (Grant No. 2003CB415006)
the National Natural Science Foundation of China (Grant Nos. 20520120221, 20537010, 50436040, 20371048, 20407016)
the Chinese Academy of Sciences
