1. School of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou 561000, China
2. Engineering Technology Center of Control and Remediation of Soil Contamination of Provincial Science & Technology Bureau, Anshun University, Anshun, Guizhou 561000, China
3. School of Resource and Environmental Engineering, Anshun University, Anshun, Guizhou 561000, China