1. Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou, P. R. China
2. Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, P. R. China
3. Xuyi Center of Attapulgite Applied Technology Research Development and Industrialization, Chinese Academy of Sciences, Xuyi, P. R. China
4. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, P. R. China