1. Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
2. King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia
3. Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. 87 Helwan, Cairo 11421, Egypt
4. Chemical Engineering Department, King Saud University, Riyadh 11451, Saudi Arabia
5. King Abdullah City for Atomic and Renewable Energy (K.A. CARE), Energy Research and Innovation Center at Riyadh, Riyadh 12244, Saudi Arabia