1. Department of Materials Science and Engineering, Chosun University, Gwangju 61452, South Korea
2. Optoelectronic Convergence Research Center, Department of Materials Science and Engineering, Chonnam National University, Gwangju 61186, South Korea
3. Department of Environment and Energy Engineering, Chonnam National University, Gwangju 61186, South Korea
4. KAUST Catalysis Center, Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
5. Department of Business Administration, Honam University, Gwangju 62399, South Korea
6. Department of Mechanical Engineering, Chosun University, Gwangju 61452, South Korea