1. College of Chemistry; Sichuan University; Chengdu 610064 Sichuan China
2. College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong China
3. Chengdu Institute of Geology and Mineral Resources; Chengdu 610081 Sichuan China
4. Chemistry Department; King Abdulaziz University; Jeddah 21589 Saudi Arabia