Rodriguez-de-la-Pena, Santiago and Gomez-Salazar, Sergio and Gutierrez-Ortega, Jose Antonio and Badillo-Camacho, Jessica and Peregrina-Lucano, Alejandro Aaron and Shenderovich, Ilya G. and Manriquez-Gonzalez, Ricardo (2022) Novel Silica Hybrid Adsorbent Functionalized with l-Glutathione Used for the Uptake of As(V) from Aqueous Media. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 61 (12). pp. 4348-4362. ISSN 0888-5885
Full text not available from this repository. (Request a copy)Abstract
A hybrid silica mesoporous material with l-glutathione (LG) (SG-LGPS) was synthesized by a modified sol-gel process. The chemical and structural characterization of the SG-LGPS material was achieved by Fourier transform infrared, solid-state C-13 and Si-19 NMR, and X-ray diffraction. Surface analysis showed a specific surface area of 466.8 m(2) g(-1). X-ray photoelectron spectroscopy and energy dispersive X-ray spectrometry measurements demonstrated the chemical composition of the hybrid material and the presence of As(V) after the uptake process. The adsorption performance for SG-LGPS reached a maximum arsenic uptake of 45.22 mg g(-1) at pH = 4; kinetics and equilibrium results were better described by the pseudo-second-order and Temkin models, respectively. Competitive ion adsorption studies were also performed. The uptake mechanism proposed for this material is a bidentate arsenic-glutathione complex. The present material proposed is as follows: (1) a new scope for environmentally friendly materials with amino acids and (2) a versatile adsorption application extended to other heavy metal ions due to the LG functional group composition.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ARSENIC REMOVAL; HEAVY-METALS; ADSORPTION; WATER; BANGLADESH; ACID; CONTAMINATION; WASTEWATERS; ENVIRONMENT; SORBENT |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Feb 2024 10:42 |
| Last Modified: | 16 Feb 2024 10:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58107 |
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