吸附
朗缪尔吸附模型
纳米复合材料
亚甲蓝
壳聚糖
核化学
朗缪尔
化学工程
弗伦德利希方程
傅里叶变换红外光谱
Zeta电位
水溶液
材料科学
共沉淀
化学
纳米颗粒
有机化学
纳米技术
光催化
工程类
催化作用
作者
Ibrahim Hotan Alsohaimi,Mosaed S. Alhumaimess,Ayoub Abdullah Alqadami,Hassan M.A. Hassan,Qiao Chen,Mohammed Saeed Alamri,Majed Mohammed J Alanzi,Thamer S. Alraddadi
标识
DOI:10.1016/j.ces.2023.119017
摘要
In this work, magnetite nanoparticle decorated graphene oxide (MGO) is modified with triethylenetetramine (TETA), which is supported by maleated chitosan (MACS), named [email protected]@MACS. The novel magnetic nanohybrid is successfully fabricated via an in situ coprecipitation method, which is for methylene blue (MB) uptake from liquid phase environment. XRD, FTIR, TGA, nitrogen isotherm, SEM, and Zeta potential experiments were utilized to explore the [email protected]@MACS nanocomposite. The mean particle size and surface area of [email protected]@MACS were measured to be 11.5 nm and 128.04 m2·g−1, respectively. The nonlinear kinetic and isotherm models were utilized to evaluate the adsorption equilibrium. Data analysis revealed that the uptake kinetics fits the PFO model while the adsorption equilibrium follows the Langmuir isotherm. The maximum adsorption capacity of [email protected]@MACS nanocomposite, estimated from Langmuir isotherm, was 247.37 mg/g at the ambient temperature. Thermodynamic calculations confirmed the exothermic and spontaneous nature of the MB decontamination.
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