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المؤلفLaabd, M.
المؤلفChafai, H.
المؤلفEssekri, A.
المؤلفElamine, M.
المؤلفAl-Muhtaseb, S.A.
المؤلفLakhmiri, R.
المؤلفAlbourine, A.
تاريخ الإتاحة2021-01-27T11:06:56Z
تاريخ النشر2017
اسم المنشورSustainable Materials and Technologies
المصدرScopus
الرقم المعياري الدولي للكتاب22149937
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.susmat.2017.04.004
معرّف المصادر الموحدhttp://hdl.handle.net/10576/17516
الملخصThe polyaniline coated with an agricultural waste (Argan nut shell) was prepared via in-situ chemical polymerization and used as an adsorbent material for removal of trimellitic (Tri), hemimellitic (Hemi) and pyromellitic (Pyro) acids from water in single and multi-component systems. The obtained results indicate that the adsorption process was strongly influenced by experimental parameters. The greatest adsorption efficiency was obtained at pH 6, adsorbent dose = 0.5 g/L, T = 25 °C, contact time = 90 min and initial concentration of 20 mg/L. The experimental data for single component systems fitted very well to pseudo-second-order kinetic model (R2 = 0.999). The intraparticle diffusion model suggests that the adsorption of Tri, Hemi and Pyro acids takes place in two successive stages representing the progressive adsorption and equilibrium. The single component adsorption equilibrium data were successfully described by the Langmuir isotherm model (R2 ≥ 0.995). The maximum monolayer adsorption capacity of polyaniline/Argan-nut-shell composite was found to be 209.64, 143.68 and 267.38 mg/g for Tri, Hemi and Pyro acids, respectively. In binary and ternary systems, the competitive behavior of the adsorption process was successfully predicted by an extended Langmuir isotherm model, with interaction parameters obtained from measured single data. Furthermore, the values of thermodynamic parameters (ΔH° ˃ 0, ΔS° ˃ 0 and ΔG ˂ 0) indicate that the adsorption processes were spontaneous, endothermic and physisorption in nature.
اللغةen
الناشرElsevier B.V.
الموضوعAdsorption
Agricultural waste
Multi-component systems
Polyaniline
Polycarboxy-benzoic acids
العنوانSingle and multi-component adsorption of aromatic acids using an eco-friendly polyaniline-based biocomposite
النوعArticle
الصفحات35-43
رقم المجلد12
dc.accessType Abstract Only


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