1. Liaoning Key Lab of Pulp and Paper Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
2. Department of Chemical Engineering, Lakehead University, Thunder Bay, Ontario P7B5E1, Canada
3. Key Laboratory of Pulp & Paper Science and Technology, Ministry of Education, Qilu University of Technology, Jinan, Shandong 250353, China