1. College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, People’s Republic of China.
2. Corresponding author. School of Mathematics and Shing-Tung Yau Center, Southeast University, Nanjing 211189; Nanjing Center for Applied Mathematics, Nanjing 211135, People’s Republic of China.
3. School of Mathematics and Shing-Tung Yau Center, Southeast University, Nanjing 211189; Nanjing Center for Applied Mathematics, Nanjing 211135, People’s Republic of China.
4. Nanjing Center for Applied Mathematics, Nanjing 211135, People’s Republic of China; Department of Applied Mathematics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.