1. Department of Science and Humanities, Sumathi Reddy Institute of Technology for Women, Warangal, Telangana 506371, India
2. Department of Applied Sciences, National Institute of Technology Goa, Ponda 403401, India
3. College of Engineering, National University of Science & Technology, P. O. Box 620, Seeb PC 130, Oman
4. Department of Chemistry, School of Engineering, Presidency University, Bangalore, Karnataka 560064, India