1. Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
2. Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
3. Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts 02747, USA
4. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
5. Sogang University, Department of Chemistry, Korea Center for Artificial Photosynthesis (KCAP), Center for Nanomaterial, Seoul, Republic of Korea