WANG Bing-Bing1,2, CHENG Yao-Qin1, WANG Yin1, WANG Dan-Dan1,3, LI Yi-Mei1**
1.College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China;
2.Tongcheng No.8 High School, Anqing 231400,China;
3.Tongguan No.1 Middle School, Weinan 714300, China