1. Chemistry Department University of North Carolina at Charlotte Charlotte NC 28223 USA
2. Nanophotonics and Applications Lab, Physics Department, Faculty of Science Beni‐Suef University Beni‐Suef 62514 Egypt
3. Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science Beni‐Suef University Beni‐Suef 62514 Egypt
4. Department of Chemistry Indian Institute of Technology Madras Chennai 600036 India
5. Geology Department, Faculty of Science Beni‐Suef University Beni‐Suef 62514 Egypt