1. School of Materials and Packaging Engineering, Fujian Polytechnic Normal University, Fuzhou, Fujian 350300, P. R. China
2. College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, P. R. China
3. Institute of National Analytical Research and Service, Bangladesh Council of Scientific and Industrial Research, Dhanmondi, Dhaka 1205, Bangladesh