1. Department of Chemical Engineering, College of Engineering, Dhofar University, P.O. Box 2509, Salalah 211, Sultanate of Oman
2. Department of Chemical Engineering, Birla Institute of Technology, Ranchi 835215, India
3. Department of Chemistry and The Alan G. MacDiarmid NanoTech Institute, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States