1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection; College of Materials, Chemistry & Chemical Engineering; Chengdu University of Technology; 610059 Chengdu China
2. Department of Chemistry; Graduate School of Science; Tohoku University; 980-8578 Sendai Japan
3. College of Environment and Ecology; College of Materials, Chemistry & Chemical Engineering; Chengdu University of Technology; 610059 Chengdu China