1. John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ 07102, United States
2. Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ 07102, United States
3. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, United States
4. Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P.R. China