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Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water

Driven by the need for delivering sustainable water purification solutions for the removal of heavy metals from water, electrospun PVC membranes were functionalised with triethylenetetramine (TETA) and were used to remove lead(ii) ions selectively from water. The membranes were characterised and the...

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Autores principales: Youness, Fatima, Jaafar, Amani, Tehrani, Ali, Bilbeisi, Rana A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9426649/
https://www.ncbi.nlm.nih.gov/pubmed/36128362
http://dx.doi.org/10.1039/d2ra02946d
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author Youness, Fatima
Jaafar, Amani
Tehrani, Ali
Bilbeisi, Rana A.
author_facet Youness, Fatima
Jaafar, Amani
Tehrani, Ali
Bilbeisi, Rana A.
author_sort Youness, Fatima
collection PubMed
description Driven by the need for delivering sustainable water purification solutions for the removal of heavy metals from water, electrospun PVC membranes were functionalised with triethylenetetramine (TETA) and were used to remove lead(ii) ions selectively from water. The membranes were characterised and their adsorption behavior towards the removal of lead from water was investigated. The incorporation of TETA on the membrane's surface significantly improved the removal efficiency of lead(ii) up to 99.8% in 30 minutes and under ambient conditions, with the lowest concentration of 50 ppm. The adsorption mechanism was investigated and kinetic data showed a better correlation with the pseudo-second-order model. Similarly, the equilibrium data best fitted with the Langmuir adsorption isotherm model with a relatively high maximum adsorption capacity of 1250 mg g(−1) for lead(ii) ions, larger than recently reported adsorption capacities for similar membranes. The functionalised membrane also showed high selectivity to lead(ii) in a mixed solution containing lead(ii), mercury(ii), cadmium(ii), arsenic(iii), copper(ii), and zinc(ii). The functionalised membrane was regenerated, where desorption of lead(ii) was achieved, under mildly acidic conditions. The removal efficiency of the regenerated membrane after six cycles of adsorption/desorption was maintained at a high level of 98%. The proposed design offers a simple yet effective, sustainable, and environmentally friendly solution for water treatment.
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spelling pubmed-94266492022-09-19 Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water Youness, Fatima Jaafar, Amani Tehrani, Ali Bilbeisi, Rana A. RSC Adv Chemistry Driven by the need for delivering sustainable water purification solutions for the removal of heavy metals from water, electrospun PVC membranes were functionalised with triethylenetetramine (TETA) and were used to remove lead(ii) ions selectively from water. The membranes were characterised and their adsorption behavior towards the removal of lead from water was investigated. The incorporation of TETA on the membrane's surface significantly improved the removal efficiency of lead(ii) up to 99.8% in 30 minutes and under ambient conditions, with the lowest concentration of 50 ppm. The adsorption mechanism was investigated and kinetic data showed a better correlation with the pseudo-second-order model. Similarly, the equilibrium data best fitted with the Langmuir adsorption isotherm model with a relatively high maximum adsorption capacity of 1250 mg g(−1) for lead(ii) ions, larger than recently reported adsorption capacities for similar membranes. The functionalised membrane also showed high selectivity to lead(ii) in a mixed solution containing lead(ii), mercury(ii), cadmium(ii), arsenic(iii), copper(ii), and zinc(ii). The functionalised membrane was regenerated, where desorption of lead(ii) was achieved, under mildly acidic conditions. The removal efficiency of the regenerated membrane after six cycles of adsorption/desorption was maintained at a high level of 98%. The proposed design offers a simple yet effective, sustainable, and environmentally friendly solution for water treatment. The Royal Society of Chemistry 2022-08-30 /pmc/articles/PMC9426649/ /pubmed/36128362 http://dx.doi.org/10.1039/d2ra02946d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Youness, Fatima
Jaafar, Amani
Tehrani, Ali
Bilbeisi, Rana A.
Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water
title Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water
title_full Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water
title_fullStr Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water
title_full_unstemmed Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water
title_short Functionalised electrospun membranes (TETA-PVC) for the removal of lead(ii) from water
title_sort functionalised electrospun membranes (teta-pvc) for the removal of lead(ii) from water
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9426649/
https://www.ncbi.nlm.nih.gov/pubmed/36128362
http://dx.doi.org/10.1039/d2ra02946d
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