Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Adsorption of methylene blue from aqueous solution by raw and NaOH-modified date fruit waste

Wed Jun 19 01:56:38 2024

(2016) Adsorption of methylene blue from aqueous solution by raw and NaOH-modified date fruit waste. Der Pharma Chemica. pp. 233-242. ISSN 0975413X (ISSN)

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

This study examined the adsorption of methylene blue onto raw date fruit waste (DFW) and NaOH-modified date fruit waste (N-DFW). Experiments were done as function of contact time, initial pH (2-12), adsorbent dose (0.5-8 g/L) and initial dye concentration (20-200 mg/L). The solution pH had strong effect on the adsorption capacity of both adsorbents and the extent of the dye removal increased with increasing pH. The experimental data were fitted to different kinetic and isotherm models. The adsorption of methylene blue on both sorbents followed well the pseudo-second-order model. According to Langmuir isotherm model, the maximum monolayer adsorption capacities of DFW and N-DFW were 165.3 and 215.4 mg/g, respectively. Therefore, date fruit waste could be considered as an efficient adsorbent for the removal of MB from aqueous solutions and its adsorption properties were improved through modification with NaOH.

Item Type: Article
Creators:
CreatorsEmail
Khorshidi, S.UNSPECIFIED
Nourmoradi, H.UNSPECIFIED
Rahmanian, O.UNSPECIFIED
Moghadam, F. M.UNSPECIFIED
Norouzi, S.UNSPECIFIED
Heidari, M.UNSPECIFIED
Keywords: Adsorption Date fruit waste Methylene Blue NaOH adsorbent sodium hydroxide adsorbent dose adsorption kinetics agricultural waste aqueous solution Article chemical modification concentration (parameters) contact time controlled study pH physical parameters raw date fruit waste sodium hydroxide modified date fruit waste waste component removal
Divisions:
Page Range: pp. 233-242
Journal or Publication Title: Der Pharma Chemica
Journal Index: Scopus
Volume: 8
Number: 19
ISSN: 0975413X (ISSN)
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/1406

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