1. Department of Chemistry, Faculty of Science; Ferdowsi University of Mashhad; PO Box 91775-1436, Mashhad Iran
2. Environmental Chemistry Research Centre, Department of Chemistry, Faculty of Science; Ferdowsi University of Mashhad; PO Box 91775-1436, Mashhad Iran
3. Department of Catalyst; Iran Polymer and Petrochemical Institute (IPPI); PO Box 14965/115, Tehran Iran
4. Department of Chemical and Materials Engineering; University of Alberta; Edmonton Alberta T6G 1H9 Canada