1. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 China
2. Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 China
3. New Technologies-Research Centre; University of West Bohemia; Univerzitni 8 306 14 Pilsen Czech Republic