1. Chemistry Department, The University of Texas at El Paso, 500 West University
Avenue, El Paso, Texas 79968, United States
2. University of California
Center
for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso
3. European Synchrotron Radiation Facility, B.P.220 - 38043 Grenoble Cedex,
France
4. Environmental Science and Engineering
PhD Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States