1. Department of Inorganic Materials, School of Minerals Processing and Bioengineering; Central South University; Changsha 410083 People's Republic of China
2. Hunan Key Laboratory of Mineral Materials and Application; Central South University; Changsha 410083 People's Republic of China
3. Department of Polymeric Materials and Engineering, College of Packaging and Materials Engineering; Hunan University of Technology; Zhuzhou 412007 People's Republic of China
4. Analysis & Testing Center, Changsha Research Institute of Mining and Metallurgy Co. Ltd; Changsha 410012 People's Republic of China