1. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
2. School of Biological and Chemical Engineering, NingboTech University, Ningbo 315100, P. R. China
3. Ningbo Polytechnic, Ningbo 315800, P. R. China
4. Ningbo Tianli Petrochemical Co., Ltd., Ningbo 315200, P. R. China