1. School of Chemical Engineering and Pharmaceutics , Henan University of Science and Technology , Luoyang , Henan 471003 , P.R. China
2. School of Chemical Engineering and Pharmaceutics, Rovincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology , Henan University of Science and Technology , Luoyang , Henan 471003 , P.R. China