Photocatalytic degradation of reactive dye by nano-ZnO
In the paper strongly basic anion-exchange resins as templates and zinc sulfate solution were mixed and stirred to prepare nano-ZnO.The products were characterized by scanning electron microscope,X-ray diffraction,ultraviolet-visible and other methods,which showed that the as-prepared products are nano-ZnO with hexagonal wurtzite and clubbed structure and the ratio of length and diameter is 10:1.and the as-prepared nano-ZnO has an absorption peak at 400nm wavelength.Photocatalytic degradation of methylene blue,methyl orange and rhodamine B with difierent initial concentrations by the nano-ZnO as catalyst was studied respectively under solar light;the results showed that their decoloration rates are all more than 90％.However,the decoloration rates of methyl orange and rhodamine B solution decrease gradually with the increase of initial concentrations.
photocatalysis Zn0 decoloration
LI Gang WANG Ying LI Yansheng LIU Haihuan
College of Environmental and Chemical Engineering,Dalian Jiaotong University,Liaoning Dalian,116028
国际会议
西安
英文
403-408
2008-05-15（万方平台首次上网日期，不代表论文的发表时间）