Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F23%3A00579552" target="_blank" >RIV/68081723:_____/23:00579552 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216305:26220/23:PU150443
Výsledek na webu
<a href="https://www.mdpi.com/2310-2861/9/11/865" target="_blank" >https://www.mdpi.com/2310-2861/9/11/865</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/gels9110865" target="_blank" >10.3390/gels9110865</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2023051" target="_blank" >LM2023051: Výzkumná infrastruktura CzechNanoLab</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Gels
ISSN
2310-2861
e-ISSN
2310-2861
Svazek periodika
9
Číslo periodika v rámci svazku
11
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
19
Strana od-do
865
Kód UT WoS článku
001114405500001
EID výsledku v databázi Scopus
2-s2.0-85178158456