1. Department of Environmental Engineering, HungKuang University, Sha-Lu, Taichung, Taiwan, Republic of China
2. Department of Science Application and Dissemination, National Taichung University of Education, Taichung, Taiwan, Republic of China
3. Department of Chemistry, Chung Yuan Christian University, Chung-Li, Taiwan, Republic of China
4. Department of General Education, National Taichung University of Science and Technology, Taichung, Taiwan, Republic of China