1. Nano-Mineral Materials and Application Engineering Research Center of Ministry of Education
2. Faculty of Materials Science and Chemistry
3. China University of Geosciences
4. Wuhan 430074, P. R. China
5. Division of Nanomaterials and Chemistry
6. Hefei National Laboratory for Physical Sciences at Microscale
7. Department of Chemistry
8. University of Science and Technology of China
9. , P. R. China