1. Researcher, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Chinese Academy of Sciences, Beijing, P. R. China
2. Environmental Engineer, CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, P. R. China
3. Department of Civil and Environmental Engineering, Federal University of Technology, Akure, Nigeria (corresponding author: )
4. Researcher, Chemistry Department, Mississippi State University, Starkville, MS, USA
5. Researcher, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, P. R. China
6. Researcher, CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, P. R. China
7. Laboratory of Physical Chemistry, University of Abomey-Calavi, Cotonou, Republic of Benin