1. Department of Chemistry Rawalpindi Women University Rawalpindi 46000 Pakistan
2. Materials and environmental Lab E21 Environmental Sciences Department Fatima Jinnah Women University Rawalpindi 46000 Pakistan
3. Department of Chemistry College of Science King Saud University P. O. Box 2455 11451 Riyadh Saudi Arabia
4. Department of Materials Photon Science Institute and Sir Henry Royce Institute The University of Manchester Alan Turing Building, Oxford Road M13 9PL Manchester United Kingdom