吸附
朗缪尔吸附模型
弗伦德利希方程
朗缪尔
化学
纳米颗粒
核化学
比表面积
化学工程
复合数
卡马西平
材料科学
有机化学
复合材料
纳米技术
催化作用
工程类
生物
神经科学
癫痫
作者
Elaf Abdelillah Ali Elhussein,Selin Şahın,Şahika Sena Bayazit
标识
DOI:10.1016/j.jece.2020.103898
摘要
Carbamazepine (CBZ) is an endocrine disrupting and psychoactive chemical. The application area of this chemical is wide and the presence of CBZ concentration in water is very high. The half life of CBZ is 25−65 h. So, purification of water from CBZ is a very important issue. In this study, adsorption method was used for this purpose. UiO-66 (Universitetet i Oslo) is one of the most popular metal organic frameworks. The adsorption ability of UiO-66 is very high. UiO-66 and graphene nanoplatelet (GNP)/UiO-66 composites were prepared by hydrothermal method. Then, XRD, FTIR, SEM, surface area and particle size distribution methods were applied for characterization of nanoparticles. The prepared adsorbents were used for CBZ adsorption. Some adsorption parameters were tested. These parameters are amount of adsorbent, volume of adsorbate, pH of solution, contact time of solid and liquid phase and initial CBZ concentration. Pseudo first order kinetic model and pseudo second order kinetic model were applied to contact time data. Non-linear Langmuir isotherm and non-linear Freundlich isotherm were applied to initial CBZ concentration experimental data. Also, these isotherm studies were repeated for different temperatures, 20 °C, 25 °C, 30 °C, 40 °C and 50 °C. According to Langmuir isotherm, maximum CBZ adsorption capacity of UiO-66 nanoparticles were calculated as 16.69 mg/g, and maximum CBZ adsorption capacity of UiO-66/GNP nanoparticles were found as 51.17 mg/g.
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