1. School of Physics and Electrical Engineering, Jishou University, Jishou 416000, P. R. China
2. Loudi Technician Institute, Loudi 417100, P. R. China
3. School of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, P. R. China
4. School of Pharmacy, Jishou University, Jishou 416000, P. R. China