Guangxi University, Guangxi University, Guangxi University, Guangxi University, Guangxi University, Guangxi University, Guangxi University, Guangxi University, Guangxi University, Shaanxi University of Science and Technology, South China University of Technology, Guangxi University - Key Laboratory of Clean Pulp & Papermaking and Pollution Control of Guangxi and Guangxi University - Key Laboratory of Clean Pulp & Papermaking and Pollution Control of Guangxi