Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Preparation, characterization and Cr(VI) adsorption evaluation of NaOH-activated carbon produced from Date Press Cake; an agro-industrial waste

Thu Aug 11 17:04:55 2022

(2018) Preparation, characterization and Cr(VI) adsorption evaluation of NaOH-activated carbon produced from Date Press Cake; an agro-industrial waste. Bioresource Technology. pp. 48-56. ISSN 0960-8524

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Abstract

Date Press Cake (DPC) is an inevitable by-product of date processing industries and may pose environmental problems if not managed properly. In this study, DPC was converted into activated carbon using solid NaOH under various activation conditions. The prepared activated carbon showed high specific surface area (2025.9 m(2) g(-1)) and microporous texture (86.01). It was successfully applied for the adsorption of Cr(VI) from aqueous solutions with maximum monolayer adsorption capacities as high as 282.8 mg g(-1) (pH = 2) and 198.0 mg g(-1) (pH = 5). The kinetic and isotherm experimental data of Cr(VI) adsorption onto the activated carbon were best described by Elovich and Redlich-Peterson models, respectively. It was found that the Cr(VI) adsorption onto the DPC-derived activated carbon was predominantly a chemisorption process with limited desorption rates (below 50). Overall, Date Press Cake could be considered as an abundant and renewable agroindustrial precursor for the production of high quality activated carbon.

Item Type: Article
Creators:
CreatorsEmail
Norouzi, S.UNSPECIFIED
Heidari, M.UNSPECIFIED
Alipour, V.UNSPECIFIED
Rahmanian, O.UNSPECIFIED
Fazlzadeh, M.UNSPECIFIED
Mohammadi-Moghadam, F.UNSPECIFIED
Nourmoradi, H.UNSPECIFIED
Goudarzi, B.UNSPECIFIED
Dindarloo, K.UNSPECIFIED
Keywords: Adsorption Activated carbon Date Press Cake Chromium hexavalent chromium removal aqueous-solution surface-area chemical activation enhanced adsorption shell equilibrium kinetics walnut water Agriculture Biotechnology & Applied Microbiology Energy & Fuels
Divisions:
Page Range: pp. 48-56
Journal or Publication Title: Bioresource Technology
Journal Index: ISI
Volume: 258
Identification Number: https://doi.org/10.1016/j.biortech.2018.02.106
ISSN: 0960-8524
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/79

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