Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions

This study proposed a novel and low-cost adsorbent prepared from dredging sediment (DSD) for effective removal of dye in aqueous solutions. The adsorption efficiency and behavior of the DSD adsorbent toward the crystal violet (CV), a cationic dye, were investigated via batch experiments. The results...

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Autores principales:	Abdelkader Ouakouak, Messameh Abdelhamid, Barhoumi Thouraya, Hadj-Otmane Chahinez, Grabi Hocine, Noureddine Hamdi, Achmad Syafiuddin, Raj Boopathy
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	dredged sediment characterization adsorption crystal violet mechanisms Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/50ee6c483aec4eaaa0b5d9c8368fa1b6
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spelling	oai:doaj.org-article:50ee6c483aec4eaaa0b5d9c8368fa1b62021-11-25T16:36:30ZDevelopment of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions10.3390/app1122107222076-3417https://doaj.org/article/50ee6c483aec4eaaa0b5d9c8368fa1b62021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10722https://doaj.org/toc/2076-3417This study proposed a novel and low-cost adsorbent prepared from dredging sediment (DSD) for effective removal of dye in aqueous solutions. The adsorption efficiency and behavior of the DSD adsorbent toward the crystal violet (CV), a cationic dye, were investigated via batch experiments. The results showed that DSD samples contain mainly clay minerals (illite and kaolinite) and other mineral phases. In addition, DSD is a mesoporous material (V<sub>mesopore</sub> = 94.4%), and it exhibits a relatively high surface area (~39.1 m<sup>2</sup>/g). Adsorption experiments showed that the solution’s pH slightly affects the adsorption process, and a pH of 11 gave a maximum capacity of 27.2 mg/g. The kinetic data of CV dye adsorption is well described by the pseudo–second-order and the Avrami models. The Langmuir and Liu isotherm models provide the best fit for the adsorption equilibrium data. The monolayer adsorption capacity of Langmuir reached 183.6, 198.0, and 243.6 mg/g at 293, 308, and 323 K, respectively. It was also found that the adsorption process was spontaneous (−ΔG°), exothermic (−∆H°), and increased the randomness (+∆S°) during the adsorption operation. The primary mechanisms in CV dye adsorption were ion exchange and pore filling, whereas electrostatic attraction was a minor contribution. In addition, three steps involving intraparticle diffusion occur at the same time to control the adsorption process. The results of this study highlight the excellent efficiency of DSD material as an ecofriendly sorbent for toxic dyes from water media.Abdelkader OuakouakMessameh AbdelhamidBarhoumi ThourayaHadj-Otmane ChahinezGrabi HocineNoureddine HamdiAchmad SyafiuddinRaj BoopathyMDPI AGarticledredged sedimentcharacterizationadsorptioncrystal violetmechanismsTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10722, p 10722 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dredged sediment characterization adsorption crystal violet mechanisms Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	dredged sediment characterization adsorption crystal violet mechanisms Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Abdelkader Ouakouak Messameh Abdelhamid Barhoumi Thouraya Hadj-Otmane Chahinez Grabi Hocine Noureddine Hamdi Achmad Syafiuddin Raj Boopathy Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions
description	This study proposed a novel and low-cost adsorbent prepared from dredging sediment (DSD) for effective removal of dye in aqueous solutions. The adsorption efficiency and behavior of the DSD adsorbent toward the crystal violet (CV), a cationic dye, were investigated via batch experiments. The results showed that DSD samples contain mainly clay minerals (illite and kaolinite) and other mineral phases. In addition, DSD is a mesoporous material (V<sub>mesopore</sub> = 94.4%), and it exhibits a relatively high surface area (~39.1 m<sup>2</sup>/g). Adsorption experiments showed that the solution’s pH slightly affects the adsorption process, and a pH of 11 gave a maximum capacity of 27.2 mg/g. The kinetic data of CV dye adsorption is well described by the pseudo–second-order and the Avrami models. The Langmuir and Liu isotherm models provide the best fit for the adsorption equilibrium data. The monolayer adsorption capacity of Langmuir reached 183.6, 198.0, and 243.6 mg/g at 293, 308, and 323 K, respectively. It was also found that the adsorption process was spontaneous (−ΔG°), exothermic (−∆H°), and increased the randomness (+∆S°) during the adsorption operation. The primary mechanisms in CV dye adsorption were ion exchange and pore filling, whereas electrostatic attraction was a minor contribution. In addition, three steps involving intraparticle diffusion occur at the same time to control the adsorption process. The results of this study highlight the excellent efficiency of DSD material as an ecofriendly sorbent for toxic dyes from water media.
format	article
author	Abdelkader Ouakouak Messameh Abdelhamid Barhoumi Thouraya Hadj-Otmane Chahinez Grabi Hocine Noureddine Hamdi Achmad Syafiuddin Raj Boopathy
author_facet	Abdelkader Ouakouak Messameh Abdelhamid Barhoumi Thouraya Hadj-Otmane Chahinez Grabi Hocine Noureddine Hamdi Achmad Syafiuddin Raj Boopathy
author_sort	Abdelkader Ouakouak
title	Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions
title_short	Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions
title_full	Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions
title_fullStr	Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions
title_full_unstemmed	Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions
title_sort	development of a novel adsorbent prepared from dredging sediment for effective removal of dye in aqueous solutions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/50ee6c483aec4eaaa0b5d9c8368fa1b6
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Development of a Novel Adsorbent Prepared from Dredging Sediment for Effective Removal of Dye in Aqueous Solutions

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