1. Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
2. Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
3. National Research Council Resident Research Associate, United States Environmental Protection Agency, Ada, Oklahoma 74820, United States
4. Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
5. School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, P. R. China
6. State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China