1. Department of Chemistry and
Chemical Engineering, Beijing University of Technology, Beijing 100124, China
2. Department of Chemistry, Lanzhou University, Lanzhou, Gansu, 730000, China
3. Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, United
States
4. School of Chemistry
and Chemical
Engineering, Huaiyin Normal University,
Huaian 223300, China