LIU Qiang-Qiang1, CHEN Bai-Li1, ZHONG Jun-Bo1, HUANG Sheng-Tian1**, MA Lan2
1. School of Chemistry and Environmental,Sichuan University of Science and Engineering, Zigong 643000, China; 2. College of Vanadium and Titanium Panzhihua University, Panzhihua 617000, China