1. College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
2. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
3. Postdoctor Scientific Research Station of Shengli Petroleun Administration, SINOPEC, Dongying 257000, P. R. China
4. College of Science and Technology, Xinyang College, Xinyang 464000, P. R. China