1. School of Environment, Tsinghua University, Beijing 100084, China
2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
3. Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
4. Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
5. Department of Environmental Engineering, Rice University, Houston, Texas 77005, United States
6. School of Sustainable Engineering and Built Environment, Arizona State University, Tempe, Arizona 85287, United States
7. Department of Chemistry, Rice University, Houston, Texas 77005, United States
8. Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States