Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification

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dc.contributor.authorAl-Anber, Mohamed A.cs
dc.contributor.authorAl Ja´afreh, Malakcs
dc.contributor.authorAl-Momani, Idrees F.cs
dc.contributor.authorHijazi, Ahmed, K.cs
dc.contributor.authorSobola, Dinaracs
dc.contributor.authorSagadevan, Sureshcs
dc.contributor.authorAl Bayaydah, Salsabeelcs
dc.coverage.issue11cs
dc.coverage.volume9cs
dc.date.issued2023-10-30cs
dc.description.abstractThe L-cysteine-functionalized silica (SG-Cys(-)Na(+)) matrix was effectively loaded with silver (I) ions using the batch sorption technique. Optimal Ag(I) loading into SG-Cys(-)Na(+) reached 98% at pHi = 6, 80 rpm, 1 mg L-1, and a temperature of 55 degree celsius. The Langmuir isotherm was found to be suitable for Ag(I) binding onto SG-Cys-Na+ active sites, forming a homogeneous monolayer (R-2 = 0.999), as confirmed by FTIR spectroscopy. XRD analysis indicated matrix stability and the absence of Ag2O and Ag(0) phases, observed from diffraction peaks. The pseudo-second-order model (R-2 > 0.999) suggested chemisorption-controlled adsorption, involving chemical bonding between silver ions and SG-Cys(-)Na(+) surface. Thermodynamic parameters were calculated, indicating higher initial concentrations leading to increased equilibrium constants, negative Delta G values, positive Delta S values, and negative Delta H. This study aimed to explore silver ion saturation on silica surfaces and the underlying association mechanisms. The capability to capture and load silver (I) ions onto functionalized silica gel materials holds promise for environmental and water purification applications.en
dc.formattextcs
dc.format.extent1-19cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationGels. 2023, vol. 9, issue 11, p. 1-19.en
dc.identifier.doi10.3390/gels9110865cs
dc.identifier.issn2310-2861cs
dc.identifier.orcid0000-0002-0008-5265cs
dc.identifier.other187459cs
dc.identifier.researcheridG-1175-2019cs
dc.identifier.scopus57189064262cs
dc.identifier.urihttp://hdl.handle.net/11012/245073
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofGelscs
dc.relation.urihttps://www.mdpi.com/2310-2861/9/11/865cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2310-2861/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsilver (I) Ionen
dc.subjectL-cysteineen
dc.subjectsilica gelen
dc.subjectLangmuir isothermen
dc.subjectthermodynamic parametersen
dc.titleLoading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purificationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-187459en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:40:34en
sync.item.modts2025.01.17 15:28:14en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé keramické materiálycs
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