1. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes; National Laboratory of Mineral Materials; School of Materials Science and Technology; China University of Geosciences; Beijing 100083 China
2. Yantai Nanshan University; Longkou Shandong Province 265713 China
3. School of Science; China University of Geosciences; Beijing 100083 P.R. China