1. Department of Chemistry; Anna University of Technology-Madurai; Ramanathapuram campus; Ramanathapuram; Tamilnadu; India
2. Department of Chemical Engineering; SSN college of Engineering; Chennai; India
3. Department of Applied Science and Technology; Anna University; Chennai; 600 025; India
4. Department of Chemistry; Velammal Engineering College; Chennai; 600 066; Tamil Nadu; India