1. Laboratory
of Green Chemistry, Faculty of Technology, Lappeenranta University of Technology, Mikkeli FI-50100, Finland
2. Department
of Chemistry, College of Science, Sultan Qaboos University, P.O. Box 36, P.C. 123, Al-Khoudh, Muscat, Sultanate of Oman
3. Department
of Chemical Engineering, Kwangwoon University, Seoul 139-701, Korea
4. Department
of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden