吸附
弗伦德利希方程
金属有机骨架
纳米纤维
朗缪尔
核化学
材料科学
热液循环
傅里叶变换红外光谱
扩散
化学工程
金属
粒径
化学
无机化学
纳米技术
物理化学
冶金
工程类
物理
热力学
作者
Elaf Abdelillah Ali Elhussein,Selin Şahın,Şahika Sena Bayazit
标识
DOI:10.1016/j.molliq.2018.01.165
摘要
In this study, CeO2 nanofibers derived from Ce(1,3,5-BTC)(H2O)6 (Ce-BTC) metal organic frameworks were prepared, and then the affinity of CeO2 towards 2,4-dichlorophenoxyacetic acid (2,4-D) was investigated. After the Ce-BTC nanoparticles were synthesized by hydrothermal method, the Ce-BTC was calcinated, and CeO2 nanofibers were obtained. The Ce-BTC and CeO2 were characterized by SEM, XRD, FTIR and AFM methods, respectively. The adsorption studies of 2,4-D from water with CeO2 were carried out as batch type. The Langmuir, Freundlich and Sips isotherms were applied to the experimental data. And pseudo second order, intra-particle diffusion and Bangham kinetic models were used for determination of the kinetic mechanism of the adsorption. The maximum adsorption capacity for 2,4-D was found to be 86.16, 95.78 and 84.29 mg/g for each temperature (298, 308 and 318 K), respectively.
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