1Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, 84990 Israel
2Department
of Chemistry, Department of Materials Science and NanoEngineering,
Smalley-Curl Institute and NanoCarbon Center, Nanosystems Engineering
Research Center for Nanotechnology-Enabled Water Treatment, Rice University, 6100 Main Street, Houston, Texas 77005, United States