1. Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
2. Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha, 410083, China
3. Centre for Water Technology (WATEC) & Department of Engineering, Aarhus University, Hangøvej 2, DK-8200 Aarhus N, Denmark
4. School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide SA5005, Australia
5. School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
6. Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
7. Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45221, United States
8. Department of Civil and Environmental Engineering, Rice University, Houston, 77005, United States