1. School of Materials Science and Engineering Shandong University of Science and Technology Qingdao 266590 P. R. China
2. Key Laboratory of Coal to Ethylene Glycol and Its Related Technology State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 P. R. China
3. College of Environmental Science and Engineering Engineering Research Center of Polymer Green Recycling of Ministry of Education Fujian Key Laboratory of Pollution Control &Resource Reuse Fujian Normal University Fuzhou 350007 P. R. China
4. College of Chemistry Fuzhou University Fuzhou 350108 (P. R. China