1. Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
2. Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Rice University, Houston, Texas 77005, United States
3. Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005, United States
4. Department of Chemistry, Rice University, Houston, Texas 77005, United States
5. Department of Materials Science & Nanoengineering, Rice University, Houston, Texas 77005, United States