[1] Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin,300457, China
[2] School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, GA,30332, United States
[3] Center for Nanophase Materials and Sciences, Oak Ridge National Laboratory, Oak Ridge,TN,37831, United States
[4] Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge,TN,37831, United States
[5] National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Centre for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural Universit
[6] Department of Horticultural Sciences, Institute of Food and Agricultural Sciences (IFAS), University of Florida, Gainesville,FL,32611, United States
[7] School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta,GA,30332, United States