Scholarly record
MODIFIED CLINOPTILOLITE AS PRECURSOR FOR FORMATION OF SILVER NANOPARTICLES-ZEOLITE NANOCOMPOSITES
Abstract
Purified natural clinoptilolite as well as clinoptilolite converted into hydrogen and sodium form have been contacted with 0.1 mol/L silver nitrate solution at a ratio solid to liquid equal to 1 to 20, in order to load silver ions (Ag+) on the zeolite support. It has been found that sodium modified clinoptilolite exchanged in highest degree Ag+ ions, followed by natural zeolite. Preliminary transformation of natural clinoptilolite into hydrogen form leads to decreasing of zeolite ability to bind Ag+ ions. The kinetics and thermodynamics of Ag+ ions uptake by zeolite have been studied. It has been found that the uptake process is best described by the pseudo-second order kinetic equation for the three studied materials. Fitting the experimental data to the isotherms' equations has shown that the Langmuir isotherm best described the loading of Ag+ ions on the three investigated zeolites. Nanocomposites ''silver nanoparticles-zeolite'' have been successfully formed by heating the Ag+-loaded zeolites at temperature 400 oC for 2 hours in air. The obtained materials have been characterized by X-ray diffraction, BET, SEM and EDS analyses. The current study has revealed that the chemical composition and morphology of synthesized nanocomposites are influenced by the modified form of clinoptilolite.
Publication Impact Profile
- Citations
- CrossRef - Citation Indexes: 1
- Scopus - Citation Indexes: 2
- Captures
- Mendeley - Readers: 2
Publication details
References14
Verma P., Maheshwari S.K., Applications of silver nanoparticles in diverse sectors, Int J Nano Dimens, vol. 10, pp. 18-36, 2019.
World Health Organization, Alternative drinking-water disinfectants: bromine, iodine and silver, CC BY-NC-SA 3.0 IGO, Geneva, 2018.
Rudramurthy G.R., Swamy M.K., Sinniah U.R., Ghasemzadeh A., Nanoparticles: alternatives against drug-resistant pathogenic microbes', Molecules, vol. 21, 836, 2016.
Hanim S.A.M., Malek N.A.N., Ibrahim Z., Amine-functionalized, silver-exchanged zeolite NaY: Preparation, characterization and antibacterial activity, App Surf Sci, vol. 360, pp. 121–130, 2016.
Flores-Lopez N.S., Castro-Rosas J., Ramirez-Bon R., Mendoza-Cordova A., Larios-Rodriguez E., Flores-Acosta M., Synthesis and properties of crystalline silver nanoparticles supported in natural zeolite chabazite, J Mol Struct, vol. 1028, pp. 110–115, 2012.
Guerra R., Lima E., Viniegra M., Guzman A., Lara V., Growth of Escherichia coli and Salmonella typhi inhibited by fractal silver nanoparticles supported on zeolites, Micropor Mesopor Mat, vol. 147, pp. 267–273, 2012.
Liu Y., Chen F., Kuznicki S.M., Wasylishen R. E., Xu Z., A novel method to control the size of silver nanoparticles formed on chabazite, J Nanosci Nanotechno, vol. 9, pp. 2768–2771, 2009.
Bartolomeu R., B?rtolo R., Casale S., Fernandes A., Henriques C., Costa P., Ribeiro F., Particular characteristics of silver species on Ag-exchanged LTL zeolite in K and H form, Micropor Mesopor Mat, vol. 169, pp. 137-147, 2013.
Lopez-Fonseca R., Rivas B., Guti?rrez-Ortiz J.I., Gonz?lez-Velasco J.R., Characterization of the textural properties of chemically dealuminated Y zeolites, Stud Surf Sci Catal, vol. 144, pp. 717-722, 2002.
Wang Y.Y., Liu Y.X., Lu H.H., Yang R.Q., Yang S.M., Competitive adsorption of Pb(II), Cu(II), and Zn(II) ions onto hydroxyapatite-biochar nanocomposite in aqueous solution, J Solid State Chem, vol. 261, pp. 53–61, 2018.
Foo K.Y., Hameed B.H., Insights into the modeling of adsorption isotherm systems, Chem. Eng J., vol. 156, pp. 2–10, 2010.
Kallo D., Sherry, H., Eds. Occurrence, properties and utilisation of natural zeolites. Akademiai Kiado, Budapest, 1988.
Ho Y.S., Review of second-order models for adsorption systems, J Hazard Mater, vol. B136, pp. 681–689, 2006.
Wee M., Lara M.M., Goh K.T.K., The cation-controlled and hydrogen bond-mediated shear-thickening behavior of a tree-fern isolated polysaccharide, Carbohyd Polym 130, pp. 57-68, 2015.
Citing literature
Number of times cited according to Crossref: 1
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.