Počet záznamů: 1
Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification
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SYSNO ASEP 0579552 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification Tvůrce(i) Al-Anber, Mohammed A. (JO)
Al Ja'afreh, M. (JO)
Al-Momani, Idrees F. (JO)
Hijazi, Ahmed K. (JO)
Sobola, Dinara (UFM-A) ORCID
Sagadevan, S. (MY)
Al Bayaydah, S. (JO)Celkový počet autorů 7 Číslo článku 865 Zdroj.dok. Gels. - : MDPI
Roč. 9, č. 11 (2023)Poč.str. 19 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova aqueous-solution ; mesoporous silica ; sorption behavior ; hybrid materials ; nanoparticles ; recovery ; preconcentration ; adsorption ; desorption ; removal ; silver (I) Ion ; L-cysteine ; silica gel ; Langmuir isotherm ; thermodynamic parameters Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science Způsob publikování Open access Institucionální podpora UFM-A - RVO:68081723 UT WOS 001114405500001 EID SCOPUS 85178158456 DOI 10.3390/gels9110865 Anotace The 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. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2024 Elektronická adresa https://www.mdpi.com/2310-2861/9/11/865
Počet záznamů: 1