[1] Cent South Univ Technol, Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China
[2] China Tobacco Hunan Ind Corp, R&D Ctr, Changsha 410014, Hunan, Peoples R China
[3] Honghe Univ, Coll Sci, Menzi 661100, Yunnan, Peoples R China