1. Institute of Chemistry , University of the Punjab , Lahore , Pakistan
2. Department of Chemistry , The Islamia University of Bahawalpur , Bahawalpur , Pakistan
3. Department of Physics , University of the Punjab , Lahore , Pakistan
4. Mineral Processing Research Centre , PCSIR Laboratories Complex , Ferozepur Road, Lahore , Pakistan
5. Department of Chemistry , Karakoram International University , Gilgit-Baltistan , Pakistan
6. Department of Chemistry , University of Lahore , Lahore , Pakistan