Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays

Polycyclic aromatic hydrocarbons (PAHs) are of major scientific concern owing to their widespread presence in environmental compartments and their potential toxicological effects on humans and biota. In this study, the adsorption capacity of natural (montmorillonite (Mt)), synthetic (Na-Mica-4), and...

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Autores principales:	Sara Satouh, Julia Martín, María del Mar Orta, Santiago Medina-Carrasco, Nabil Messikh, Nabil Bougdah, Juan Luis Santos, Irene Aparicio, Esteban Alonso
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	montmorillonite Na-Mica-4 modified clays persistent organic pollutants environmental samples Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/dc36318a65eb468e95919e890eeaeb32
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spelling	oai:doaj.org-article:dc36318a65eb468e95919e890eeaeb322021-11-25T17:31:08ZAdsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays10.3390/environments81101242076-3298https://doaj.org/article/dc36318a65eb468e95919e890eeaeb322021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3298/8/11/124https://doaj.org/toc/2076-3298Polycyclic aromatic hydrocarbons (PAHs) are of major scientific concern owing to their widespread presence in environmental compartments and their potential toxicological effects on humans and biota. In this study, the adsorption capacity of natural (montmorillonite (Mt)), synthetic (Na-Mica-4), and modified (with octadecylamine and octadecyltrimethylamine (ODA-Mt, ODA-Mica-4, and ODTMA-Mt and ODTMA-Mica-4)) clays were assessed and compared for the removal of 16 PAHs. Materials were synthesized and characterized by X-Ray diffraction, Zeta potential, and Fourier-transform infrared spectroscopy. The results showed its correct preparation and the incorporation of PAHs in the structure of the clays after the adsorption tests. The proposed materials were effective PAH adsorbents, with adsorption percentages close to 100%, in particular those using Mt. Mt and Na-Mica-4 presented a better adsorption capacity than their organofunctionalized derivatives, indicating that the adsorption of PAHs may occur both in the surface part and in the interlayer. The proposed adsorbents take the advantage of being a low cost and highly effective. They can be an interesting alternative for wastewater treatment and soil remediation to prevent PAH contamination.Sara SatouhJulia MartínMaría del Mar OrtaSantiago Medina-CarrascoNabil MessikhNabil BougdahJuan Luis SantosIrene AparicioEsteban AlonsoMDPI AGarticlemontmorilloniteNa-Mica-4modified clayspersistent organic pollutantsenvironmental samplesEnvironmental technology. Sanitary engineeringTD1-1066ENEnvironments, Vol 8, Iss 124, p 124 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	montmorillonite Na-Mica-4 modified clays persistent organic pollutants environmental samples Environmental technology. Sanitary engineering TD1-1066
spellingShingle	montmorillonite Na-Mica-4 modified clays persistent organic pollutants environmental samples Environmental technology. Sanitary engineering TD1-1066 Sara Satouh Julia Martín María del Mar Orta Santiago Medina-Carrasco Nabil Messikh Nabil Bougdah Juan Luis Santos Irene Aparicio Esteban Alonso Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays
description	Polycyclic aromatic hydrocarbons (PAHs) are of major scientific concern owing to their widespread presence in environmental compartments and their potential toxicological effects on humans and biota. In this study, the adsorption capacity of natural (montmorillonite (Mt)), synthetic (Na-Mica-4), and modified (with octadecylamine and octadecyltrimethylamine (ODA-Mt, ODA-Mica-4, and ODTMA-Mt and ODTMA-Mica-4)) clays were assessed and compared for the removal of 16 PAHs. Materials were synthesized and characterized by X-Ray diffraction, Zeta potential, and Fourier-transform infrared spectroscopy. The results showed its correct preparation and the incorporation of PAHs in the structure of the clays after the adsorption tests. The proposed materials were effective PAH adsorbents, with adsorption percentages close to 100%, in particular those using Mt. Mt and Na-Mica-4 presented a better adsorption capacity than their organofunctionalized derivatives, indicating that the adsorption of PAHs may occur both in the surface part and in the interlayer. The proposed adsorbents take the advantage of being a low cost and highly effective. They can be an interesting alternative for wastewater treatment and soil remediation to prevent PAH contamination.
format	article
author	Sara Satouh Julia Martín María del Mar Orta Santiago Medina-Carrasco Nabil Messikh Nabil Bougdah Juan Luis Santos Irene Aparicio Esteban Alonso
author_facet	Sara Satouh Julia Martín María del Mar Orta Santiago Medina-Carrasco Nabil Messikh Nabil Bougdah Juan Luis Santos Irene Aparicio Esteban Alonso
author_sort	Sara Satouh
title	Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays
title_short	Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays
title_full	Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays
title_fullStr	Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays
title_full_unstemmed	Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays
title_sort	adsorption of polycyclic aromatic hydrocarbons by natural, synthetic and modified clays
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/dc36318a65eb468e95919e890eeaeb32
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Adsorption of Polycyclic Aromatic Hydrocarbons by Natural, Synthetic and Modified Clays

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