吸附
水溶液
热重分析
壳聚糖
苯酚
扫描电子显微镜
化学
核化学
朗缪尔吸附模型
化学工程
动力学
朗缪尔
傅里叶变换红外光谱
材料科学
多孔性
有机化学
无机化学
复合材料
工程类
物理
量子力学
作者
Jalil Heydaripour,Mustafa Gazi,Akeem Adeyemi Oladipo,Hayrettin Ozan Gülcan
标识
DOI:10.1016/j.ijbiomac.2018.11.168
摘要
In this study, porous magnetic resin grafted chitosan (R-g-Ch) beads were prepared for removal of 4–chlorophenol and phenol from aqueous solutions. The R-g-Ch beads were characterized by vibrating sample magnetometer, Fourier-transform infrared spectroscopy, scanning electron microscopy and thermogravimetry methods. The removal of the phenolic compounds was optimized by varying the experimental conditions. Results herein are well fitted to the pseudo-second order kinetic and Langmuir isotherm. The maximum adsorption capacity of phenol and 4–chlorophenol were found to be 188.6 and 99 mg/g, respectively. The thermodynamic studies suggested that the adsorption process was exothermic, irreversible and feasible within the range of 298–318 K.
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