Green grape marc biosorbents preparation for mercury removal in aqueous media
In this study, grape marc waste from Negroamaro (a South of Italy vine variety) winery production was used to prepare biosorbents for Hg(II) removal in aqueous media. A green approach was used to develop a proper biosorbent through two different grape marc washing procedures. In particular, the comm...
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Format: | Article |
Language: | English |
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Association of the Chemical Engineers of Serbia
2023-01-01
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Series: | Chemical Industry and Chemical Engineering Quarterly |
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Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2023/1451-93722200008S.pdf |
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author | del Sole Roberta Maggio Alvaro Mergola Lucia |
author_facet | del Sole Roberta Maggio Alvaro Mergola Lucia |
author_sort | del Sole Roberta |
collection | DOAJ |
description | In this study, grape marc waste from Negroamaro (a South of Italy vine variety) winery production was used to prepare biosorbents for Hg(II) removal in aqueous media. A green approach was used to develop a proper biosorbent through two different grape marc washing procedures. In particular, the common chloridric acid and the greener citric acid were evaluated. The biosorbent prepared using citric acid as a washing agent (GM-CA) gave similar results to the biosorbent washed with HCl (GM-HCl) with a maximum adsorption capacity of 36.39 mg g-1. Isothermal studies revealed heterogeneous physical adsorption of Hg(II) on the biosorbents. Moreover, FTIR analysis of the grape marc-based biosorbent without and with Hg(II) confirmed ionic interactions in the biosorbent that fit with a pseudo-second-order kinetic model. Furthermore, no significant adsorption on the biosorbent was observed when two other heavy metals, copper(II) and nickel(II), previously studied for similar sorbents, were considered. Finally, the reusability of GM-CA biosorbent was also demonstrated over three cycles. Thus, the green preparation approach used in this work can be considered suitable for developing grape marc-based biosorbents. |
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institution | Directory Open Access Journal |
issn | 1451-9372 2217-7434 |
language | English |
last_indexed | 2024-04-11T13:42:29Z |
publishDate | 2023-01-01 |
publisher | Association of the Chemical Engineers of Serbia |
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series | Chemical Industry and Chemical Engineering Quarterly |
spelling | doaj.art-f005e551d28147d99de7830e865856cb2022-12-22T04:21:13ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342023-01-0129111010.2298/CICEQ201014008S1451-93722200008SGreen grape marc biosorbents preparation for mercury removal in aqueous mediadel Sole Roberta0Maggio Alvaro1Mergola Lucia2Department of Engineering for Innovation, University of Salento, Lecce, ItalyDepartment of Engineering for Innovation, University of Salento, Lecce, ItalyDepartment of Engineering for Innovation, University of Salento, Lecce, ItalyIn this study, grape marc waste from Negroamaro (a South of Italy vine variety) winery production was used to prepare biosorbents for Hg(II) removal in aqueous media. A green approach was used to develop a proper biosorbent through two different grape marc washing procedures. In particular, the common chloridric acid and the greener citric acid were evaluated. The biosorbent prepared using citric acid as a washing agent (GM-CA) gave similar results to the biosorbent washed with HCl (GM-HCl) with a maximum adsorption capacity of 36.39 mg g-1. Isothermal studies revealed heterogeneous physical adsorption of Hg(II) on the biosorbents. Moreover, FTIR analysis of the grape marc-based biosorbent without and with Hg(II) confirmed ionic interactions in the biosorbent that fit with a pseudo-second-order kinetic model. Furthermore, no significant adsorption on the biosorbent was observed when two other heavy metals, copper(II) and nickel(II), previously studied for similar sorbents, were considered. Finally, the reusability of GM-CA biosorbent was also demonstrated over three cycles. Thus, the green preparation approach used in this work can be considered suitable for developing grape marc-based biosorbents.http://www.doiserbia.nb.rs/img/doi/1451-9372/2023/1451-93722200008S.pdfadsorption isothermscitric acidhg(ii) removalgrape marcgreen waste biosorbentkinetic study |
spellingShingle | del Sole Roberta Maggio Alvaro Mergola Lucia Green grape marc biosorbents preparation for mercury removal in aqueous media Chemical Industry and Chemical Engineering Quarterly adsorption isotherms citric acid hg(ii) removal grape marc green waste biosorbent kinetic study |
title | Green grape marc biosorbents preparation for mercury removal in aqueous media |
title_full | Green grape marc biosorbents preparation for mercury removal in aqueous media |
title_fullStr | Green grape marc biosorbents preparation for mercury removal in aqueous media |
title_full_unstemmed | Green grape marc biosorbents preparation for mercury removal in aqueous media |
title_short | Green grape marc biosorbents preparation for mercury removal in aqueous media |
title_sort | green grape marc biosorbents preparation for mercury removal in aqueous media |
topic | adsorption isotherms citric acid hg(ii) removal grape marc green waste biosorbent kinetic study |
url | http://www.doiserbia.nb.rs/img/doi/1451-9372/2023/1451-93722200008S.pdf |
work_keys_str_mv | AT delsoleroberta greengrapemarcbiosorbentspreparationformercuryremovalinaqueousmedia AT maggioalvaro greengrapemarcbiosorbentspreparationformercuryremovalinaqueousmedia AT mergolalucia greengrapemarcbiosorbentspreparationformercuryremovalinaqueousmedia |