Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification

This work explores the fabrication of organic–inorganic nanohybrid based biopolymer composite systems for the cleaning of different contaminants from wastewater. This system involves the simultaneous radiation grafting techniques for sepiolite (SP) modification and the simple mixing of modified-SP w...

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Autores principales:	Mohib Ullah Khan, Bandar Ali Al-Asbahi, Saira Bibi, Shaista Taimur, Mohsan Nawaz, Tariq Yasin, W. Aslam Farooq, Zarshad Ali, Iram Bibi, Saddiqa Begum, Ali Bahader, Zia ur Rehman, Nafeesah Yaqub, Abdullah Ahmed Ali Ahmed
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Nanohybrid Sepiolite Composite Chitosan Copper Methylene blue Science (General) Q1-390
Acceso en línea:	https://doaj.org/article/bee731f2f7734a3092fdf6a9febf45dd
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spelling	oai:doaj.org-article:bee731f2f7734a3092fdf6a9febf45dd2021-11-20T04:56:03ZInvestigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification1018-364710.1016/j.jksus.2021.101689https://doaj.org/article/bee731f2f7734a3092fdf6a9febf45dd2022-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1018364721003517https://doaj.org/toc/1018-3647This work explores the fabrication of organic–inorganic nanohybrid based biopolymer composite systems for the cleaning of different contaminants from wastewater. This system involves the simultaneous radiation grafting techniques for sepiolite (SP) modification and the simple mixing of modified-SP with biopolymer matrix, chitosan (CS). The SP beads were chemically modified with amidoxime prior to its use in composite systems. The synthesized composite beads were characterized using scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), nitrogen physical adsorption (BET) investigations, Fourier transform infrared (FT-IR), atomic absorption and UV–visible spectroscopy. Hydrolytic stability of beads was also investigated in aqueous media, beads showed excellent stability in aqueous medium and in acidic environment. Here, the sorption profile of copper over amidoxime grafted SP-nanohybrid (MSP) incorporating CS-beads is reported. Furthermore, the key adsorptive variables, i.e. contact time, adsorbent dose, and concentration of adsorbate are discussed. Different isothermal (Langmuir and Freundlich) and kinetics model were also elaborated. Langmuir isotherm and pseudo-second-order models are proved to be the best fit models for Cu (II) removal in aqueous system. To explore the efficacy of the material towards organic pollutants, methylene blue (MB) was selected as model compound and adsorbed on nanohybrid beads. The results revealed that organic–inorganic nanohybrid incorporating CS beads are quite effective for contaminated water remediation, owing to their better adsorptive performance, high stability and easy application.Mohib Ullah KhanBandar Ali Al-AsbahiSaira BibiShaista TaimurMohsan NawazTariq YasinW. Aslam FarooqZarshad AliIram BibiSaddiqa BegumAli BahaderZia ur RehmanNafeesah YaqubAbdullah Ahmed Ali AhmedElsevierarticleNanohybridSepioliteCompositeChitosanCopperMethylene blueScience (General)Q1-390ENJournal of King Saud University: Science, Vol 34, Iss 1, Pp 101689- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nanohybrid Sepiolite Composite Chitosan Copper Methylene blue Science (General) Q1-390
spellingShingle	Nanohybrid Sepiolite Composite Chitosan Copper Methylene blue Science (General) Q1-390 Mohib Ullah Khan Bandar Ali Al-Asbahi Saira Bibi Shaista Taimur Mohsan Nawaz Tariq Yasin W. Aslam Farooq Zarshad Ali Iram Bibi Saddiqa Begum Ali Bahader Zia ur Rehman Nafeesah Yaqub Abdullah Ahmed Ali Ahmed Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
description	This work explores the fabrication of organic–inorganic nanohybrid based biopolymer composite systems for the cleaning of different contaminants from wastewater. This system involves the simultaneous radiation grafting techniques for sepiolite (SP) modification and the simple mixing of modified-SP with biopolymer matrix, chitosan (CS). The SP beads were chemically modified with amidoxime prior to its use in composite systems. The synthesized composite beads were characterized using scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), nitrogen physical adsorption (BET) investigations, Fourier transform infrared (FT-IR), atomic absorption and UV–visible spectroscopy. Hydrolytic stability of beads was also investigated in aqueous media, beads showed excellent stability in aqueous medium and in acidic environment. Here, the sorption profile of copper over amidoxime grafted SP-nanohybrid (MSP) incorporating CS-beads is reported. Furthermore, the key adsorptive variables, i.e. contact time, adsorbent dose, and concentration of adsorbate are discussed. Different isothermal (Langmuir and Freundlich) and kinetics model were also elaborated. Langmuir isotherm and pseudo-second-order models are proved to be the best fit models for Cu (II) removal in aqueous system. To explore the efficacy of the material towards organic pollutants, methylene blue (MB) was selected as model compound and adsorbed on nanohybrid beads. The results revealed that organic–inorganic nanohybrid incorporating CS beads are quite effective for contaminated water remediation, owing to their better adsorptive performance, high stability and easy application.
format	article
author	Mohib Ullah Khan Bandar Ali Al-Asbahi Saira Bibi Shaista Taimur Mohsan Nawaz Tariq Yasin W. Aslam Farooq Zarshad Ali Iram Bibi Saddiqa Begum Ali Bahader Zia ur Rehman Nafeesah Yaqub Abdullah Ahmed Ali Ahmed
author_facet	Mohib Ullah Khan Bandar Ali Al-Asbahi Saira Bibi Shaista Taimur Mohsan Nawaz Tariq Yasin W. Aslam Farooq Zarshad Ali Iram Bibi Saddiqa Begum Ali Bahader Zia ur Rehman Nafeesah Yaqub Abdullah Ahmed Ali Ahmed
author_sort	Mohib Ullah Khan
title	Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
title_short	Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
title_full	Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
title_fullStr	Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
title_full_unstemmed	Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
title_sort	investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/bee731f2f7734a3092fdf6a9febf45dd
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Investigations on amidoxime grafted sepiolite based chitosan organic–inorganic nanohybrid composite beads towards wastewater detoxification

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