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...

Full description

Bibliographic Details
Main Authors: del Sole Roberta, Maggio Alvaro, Mergola Lucia
Format: Article
Language:English
Published: Association of the Chemical Engineers of Serbia 2023-01-01
Series:Chemical Industry and Chemical Engineering Quarterly
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-9372/2023/1451-93722200008S.pdf
_version_ 1811186180904976384
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.
first_indexed 2024-04-11T13:42:29Z
format Article
id doaj.art-f005e551d28147d99de7830e865856cb
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
record_format Article
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