Detail publikace

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

AL-ANBER, M. AL JA´AFREH, M. AL-MOMANI, I. HIJAZI, A. SOBOLA, D. SAGADEVAN, S. AL BAYAYDAH, S.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

silver (I) Ion; L-cysteine; silica gel; Langmuir isotherm; thermodynamic parameters

Autoři

AL-ANBER, M.; AL JA´AFREH, M.; AL-MOMANI, I.; HIJAZI, A.; SOBOLA, D.; SAGADEVAN, S.; AL BAYAYDAH, S.

Vydáno

30. 10. 2023

Nakladatel

MDPI

Místo

BASEL

ISSN

2310-2861

Periodikum

Gels

Ročník

9

Číslo

11

Stát

Švýcarská konfederace

Strany od

1

Strany do

19

Strany počet

19

URL

https://www.mdpi.com/2310-2861/9/11/865

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245073

BibTex

@article{BUT187459,
  author="Mohamed A. {Al-Anber} and Malak {Al Ja´afreh} and Idrees F. {Al-Momani} and Ahmed, K. {Hijazi} and Dinara {Sobola} and Suresh {Sagadevan} and Salsabeel {Al Bayaydah}",
  title="Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification",
  journal="Gels",
  year="2023",
  volume="9",
  number="11",
  pages="1--19",
  doi="10.3390/gels9110865",
  issn="2310-2861",
  url="https://www.mdpi.com/2310-2861/9/11/865"
}