Show simple item record

AuthorLaabd, M.
AuthorChafai, H.
AuthorEssekri, A.
AuthorElamine, M.
AuthorAl-Muhtaseb, S.A.
AuthorLakhmiri, R.
AuthorAlbourine, A.
Available date2021-01-27T11:06:56Z
Publication Date2017
Publication NameSustainable Materials and Technologies
ResourceScopus
ISSN22149937
URIhttp://dx.doi.org/10.1016/j.susmat.2017.04.004
URIhttp://hdl.handle.net/10576/17516
AbstractThe 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.
Languageen
PublisherElsevier B.V.
SubjectAdsorption
Agricultural waste
Multi-component systems
Polyaniline
Polycarboxy-benzoic acids
TitleSingle and multi-component adsorption of aromatic acids using an eco-friendly polyaniline-based biocomposite
TypeArticle
Pagination35-43
Volume Number12
dc.accessType Abstract Only


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record