Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture

Abstract In our work, the removal of cationic and anionic dyes from water was estimated both experimentally and computationally. We check the selectivity of the adsorbent, Zn–Fe layered double hydroxide (LDH) toward three dyes. The physical and chemical properties of the synthesis adsorbent before a...

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Autores principales:	Rehab K. Mahmoud, Mohamed Taha, Amal Zaher, Rafat M. Amin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d668b372d9ac4e4abd9585d4d0418167
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spelling	oai:doaj.org-article:d668b372d9ac4e4abd9585d4d04181672021-11-08T10:55:54ZUnderstanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture10.1038/s41598-021-00437-w2045-2322https://doaj.org/article/d668b372d9ac4e4abd9585d4d04181672021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-00437-whttps://doaj.org/toc/2045-2322Abstract In our work, the removal of cationic and anionic dyes from water was estimated both experimentally and computationally. We check the selectivity of the adsorbent, Zn–Fe layered double hydroxide (LDH) toward three dyes. The physical and chemical properties of the synthesis adsorbent before and after the adsorption process were investigated using X-ray photoelectron spectroscopy, energy dispersive X-ray, X-ray diffraction, FT-IR, HRTEM, and FESEM analysis, particle size, zeta potential, optical and electric properties were estimated. The effect of pH on the adsorption process was estimated. The chemical stability was investigated at pH 4. Monte Carlo simulations were achieved to understand the mechanism of the adsorption process and calculate the adsorption energies. Single dye adsorption tests revealed that Zn–Fe LDH effectively takes up anionic methyl orange (MO) more than the cationic dyes methylene blue (MB) and malachite green (MG). From MO/MB/MG mixture experiments, LDH selectively adsorbed in the following order: MO > MB > MG. The adsorption capacity of a single dye solution was 230.68, 133.29, and 57.34 mg/g for MO, MB, and MG, respectively; for the ternary solution, the adsorption capacity was 217.97, 93.122, and 49.57 mg/g for MO, MB, and MG, respectively. Zn–Fe LDH was also used as a photocatalyst, giving 92.2% and 84.7% degradation at concentrations of 10 and 20 mg/L, respectively. For visible radiation, the Zn–Fe LDH showed no activity.Rehab K. MahmoudMohamed TahaAmal ZaherRafat M. AminNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-19 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rehab K. Mahmoud Mohamed Taha Amal Zaher Rafat M. Amin Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture
description	Abstract In our work, the removal of cationic and anionic dyes from water was estimated both experimentally and computationally. We check the selectivity of the adsorbent, Zn–Fe layered double hydroxide (LDH) toward three dyes. The physical and chemical properties of the synthesis adsorbent before and after the adsorption process were investigated using X-ray photoelectron spectroscopy, energy dispersive X-ray, X-ray diffraction, FT-IR, HRTEM, and FESEM analysis, particle size, zeta potential, optical and electric properties were estimated. The effect of pH on the adsorption process was estimated. The chemical stability was investigated at pH 4. Monte Carlo simulations were achieved to understand the mechanism of the adsorption process and calculate the adsorption energies. Single dye adsorption tests revealed that Zn–Fe LDH effectively takes up anionic methyl orange (MO) more than the cationic dyes methylene blue (MB) and malachite green (MG). From MO/MB/MG mixture experiments, LDH selectively adsorbed in the following order: MO > MB > MG. The adsorption capacity of a single dye solution was 230.68, 133.29, and 57.34 mg/g for MO, MB, and MG, respectively; for the ternary solution, the adsorption capacity was 217.97, 93.122, and 49.57 mg/g for MO, MB, and MG, respectively. Zn–Fe LDH was also used as a photocatalyst, giving 92.2% and 84.7% degradation at concentrations of 10 and 20 mg/L, respectively. For visible radiation, the Zn–Fe LDH showed no activity.
format	article
author	Rehab K. Mahmoud Mohamed Taha Amal Zaher Rafat M. Amin
author_facet	Rehab K. Mahmoud Mohamed Taha Amal Zaher Rafat M. Amin
author_sort	Rehab K. Mahmoud
title	Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture
title_short	Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture
title_full	Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture
title_fullStr	Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture
title_full_unstemmed	Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture
title_sort	understanding the physicochemical properties of zn–fe ldh nanostructure as sorbent material for removing of anionic and cationic dyes mixture
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d668b372d9ac4e4abd9585d4d0418167
work_keys_str_mv	AT rehabkmahmoud understandingthephysicochemicalpropertiesofznfeldhnanostructureassorbentmaterialforremovingofanionicandcationicdyesmixture AT mohamedtaha understandingthephysicochemicalpropertiesofznfeldhnanostructureassorbentmaterialforremovingofanionicandcationicdyesmixture AT amalzaher understandingthephysicochemicalpropertiesofznfeldhnanostructureassorbentmaterialforremovingofanionicandcationicdyesmixture AT rafatmamin understandingthephysicochemicalpropertiesofznfeldhnanostructureassorbentmaterialforremovingofanionicandcationicdyesmixture
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Understanding the physicochemical properties of Zn–Fe LDH nanostructure as sorbent material for removing of anionic and cationic dyes mixture

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