Microwave-assisted Synthesis of ZnO for Photocatalytic Reduction of Cr (Ⅵ) in Aqueous Solution
ZnO nanosheets are successfully synthesized via microwave-assisted reaction of ZnO precursor in aqueous solution using a CEM microwave system.Their morphologies,structures and photocatalytic performances in reduction of Cr(Ⅵ) are characterized by scanning electron microscopy,transmission electron microscopy,X-ray diffraction spectroscopy and UV-vis absorption spectrophotometer,respectively.The result show that ZnO nanosheets synthesized in 5 min exhibits a maximum photocatalytic performance in reduction of Cr(Ⅵ) with removal rate of 81％ under UV irradiation due to the increased light absorption intensity and the reduction of electron-hole pair recombination.
microwave-assisted synthesis ZnO photocatalysis Cr(Ⅵ)
Xinjuan Liu Tian Lv Likun Pan Zhuo Sun Changqing Sun
Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education,Departmen School of Electrical and Electronic Engineering, Nanyang Technological University
国内会议
青岛
英文
396-401
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）