1. College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, P.R. China
2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P.R. China
3. Department of Chemistry, Debre Berhan University, 445, Debre Berhan, Ethiopia
4. Department of Materials Science and Engineering, Adama Science and Technology University, Adama 1888, Ethiopia