1. College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
2. Yibin Industrial Technology Research Institute of Sichuan University, Yibin 644000, China
3. Sichuan Realhoub Special Fibre Co., Ltd, Yibin 644000, China
4. School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, U.K.