1. College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, Material Analysis and Testing Center, China Three Gorges University, Yichang, Hubei 443002, China
2. Centre for Clean Environment and Energy, Griffith University, Gold Coast, Queensland, 4222, Australia
3. Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
4. Center of Super-Diamond and Advanced Films (COSDAF), City University of Hongkong, Hong Kong SAR 999077, P. R. China