1
|
Al-Anber MA, Al Ja’afreh M, Al-Momani IF, Hijazi AK, Sobola D, Sagadevan S, Al Bayaydah S. Loading of Silver (I) Ion in L-Cysteine-Functionalized Silica Gel Material for Aquatic Purification. Gels 2023; 9:865. [PMID: 37998955 PMCID: PMC10670454 DOI: 10.3390/gels9110865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
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 °C. The Langmuir isotherm was found to be suitable for Ag(I) binding onto SG-Cys-Na+ active sites, forming a homogeneous monolayer (R2 = 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 (R2 > 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 ΔG values, positive ΔS values, and negative ΔH. 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.
Collapse
Affiliation(s)
- Mohammed A. Al-Anber
- Laboratory of Inorganic Materials and Polymers, Department of Chemistry, Faculty of Sciences, Mutah University, P.O. Box 7, Al-Karak 61710, Jordan
| | - Malak Al Ja’afreh
- Laboratory of Inorganic Materials and Polymers, Department of Chemistry, Faculty of Sciences, Mutah University, P.O. Box 7, Al-Karak 61710, Jordan
| | - Idrees F. Al-Momani
- Department of Chemistry, Faculty of Sciences, Yarmouk University, Irbid 21163, Jordan
| | - Ahmed K. Hijazi
- Department of Chemistry, Faculty of Sciences and Arts, Jordan University of Science and Technology, Irbid 22110, Jordan;
| | - Dinara Sobola
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic
- Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 61662 Brno, Czech Republic
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Salsabeel Al Bayaydah
- Laboratory of Inorganic Materials and Polymers, Department of Chemistry, Faculty of Sciences, Mutah University, P.O. Box 7, Al-Karak 61710, Jordan
| |
Collapse
|
2
|
Kholmogorova AS, Chernysh ML, Neudachina LK, Puzyrev IS. Method of adsorption-atomic-absorption determination of silver (I) using a modified polysiloxane. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
3
|
Kholmogorova AS, Svintsova EA, Neudachina LK, Lebedeva EL, Puzyrev IS. Potentiometric Determination of Palladium(II) in Aqueous Solutions Using a Modified Carbon-Paste Electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s106193482005007x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
4
|
Neudachina LK, Kholmogorova AS, Puzyrev IS, Galieva ZR. Exchange Capacity of Polysiloxane Ion Exchangers Modified with Dithiooxamide Groups with Respect to Silver(I), Platinum(IV), and Palladium(II). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418110304] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|