Investigation of acetylated kapok fibers on the sorption of oil in water
Investigation of acetylated kapok fibers on the sorption of oil in water作者机构:Center of Eco-material and Green ChemistryLanzhou Institute of Chemical PhysicsChinese Academy of Sciences Graduate University of the Chinese Academy of Sciences
出 版 物:《Journal of Environmental Sciences》 (环境科学学报(英文版))
年 卷 期:2013年第25卷第2期
页 面:246-253页
核心收录:
学科分类:0830[工学-环境科学与工程(可授工学、理学、农学学位)] 08[工学] 0815[工学-水利工程]
基 金:supported by the National Natural Science Foundation of China (No.21107116) the Science and Technology Support Project of Jiangsu Provincial Sci.&Tech.Department (No.BY2010012)
主 题:kapok fiber acetylated oil sorption capacity kinetics isotherms
摘 要:Kapok fibers have been acetylated for oil spill cleanup in the aqueous environment. The structures of raw and acetylated kapok fiber were characterized using Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM). Without severe damage to the lumen structures, the kapok fibers were successfully acetylated and the resulting fibers exhibited a better oil sorption capacity than raw fibers for diesel and soybean oil. Compared with high viscosity soybean oil, low viscosity diesel shows a better affinity to the surface of acetylated fibers. Sorption kinetics is fitted well by the pseudo second-order model, and the equilibrium data can be described by the Freundlich isotherm model. The results implied that acetylated kapok fiber can be used as the substitute for non-biodegradable oil sorption materials.