[Zhan, Faqi; Li, Jie; Li, Wenzhang; Liu, Wenhua] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.
[Li, Dongwei; Li, Wenzhang] Chongqing Univ Educ, Div Sci Res Management, Chongqing 400065, Peoples R China.
[Yang, Yahui] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
[Li, Yaomin] UCL, Dept Chem, 20 Gordon St, London WC1H 0AJ, England.
[Tang, Xinde] Hunan Inst Technol, Dept Mat & Chem Engn, Hengyang 421002, Peoples R China.