六价铬
材料科学
吸附
蒙脱石
复合数
化学工程
朗缪尔吸附模型
铬
傅里叶变换红外光谱
聚合
水溶液
结晶度
聚苯胺
核化学
复合材料
冶金
聚合物
有机化学
化学
工程类
作者
Abdelaziz Imgharn,Mohamed Laabd,Yassine Naciri,Abdelghani Hsini,Fatima-Zahra Mahir,Hamid Zouggari,Abdallah Albourine
标识
DOI:10.1016/j.surfin.2022.102568
摘要
In this work, a polyaniline-based Hydroxyapatite-Montmorillonite ([email protected]) composite was developed through an in-situ polymerization method. The porosity, crystallinity, morphology, and structural potentialities of the as-synthesized composite were assessed using various techniques (e.g. BET, SEM, XRD and FTIR). The composite was efficiently employed as an adsorbent material for hexavalent chromium Cr(VI) detoxification from solution. The influence of several operating conditions such as [email protected] amount, pH, contact time, temperature, and initial concentration of Cr(VI) ions were systematically investigated. The adsorption study demonstrated that a pseudo-second-order kinetic and Langmuir isotherm models were appropriate to anticipate the Cr(VI) adsorption process. Finally, the prepared composite exhibited a good regeneration capacity and a great reusability for Cr(VI) removal. These findings showed that the as-developed composite was a promising adsorbent for the detoxification of Cr(VI) from aqueous solution.
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