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Pregled bibliografske jedinice broj: 568171

Removal of lead from aqueous solutions by using the natural and Fe(III)-modified zeolite


Kragović, Milan; Daković, Aleksandra; Sekulić, Živko; Trgo, Marina; Ugrina, Marin; Perić, Jelena; Gatta, Diego G.
Removal of lead from aqueous solutions by using the natural and Fe(III)-modified zeolite // Applied surface science, 258 (2012), 8; 3667-3673 doi:10.1016/j.apsusc.2011.12.002 (međunarodna recenzija, članak, znanstveni)


Naslov
Removal of lead from aqueous solutions by using the natural and Fe(III)-modified zeolite
(Milan Kragović, Aleksandra Daković, Živko Sekulić, Marina Trgo, Marin Ugrina, Jelena Perić, G. Diego Gatta)

Autori
Kragović, Milan ; Daković, Aleksandra ; Sekulić, Živko ; Trgo, Marina ; Ugrina, Marin ; Perić, Jelena ; Gatta, Diego G.

Izvornik
Applied surface science (0169-4332) 258 (2012), 8; 3667-3673

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Natural zeolite; Fe(III)-modified zeolite; heavy metals; lead; sorption

Sažetak
In the present study, the sorption of lead by the natural and Fe(III)-modified zeolite (clinoptilolite) is described. The characterization of the natural zeolite-rich rock and the Fe(III)-modified form was performed by chemical analysis, point of the zero charge (pHpzc), X-ray powder diffraction, applying the Rietveld/RIR method for the quantitative phase analysis, and scanning electron microscopy. The effects of sorbents dose and the initial lead concentrations on its sorption by two sorbents were investigated. For both sorbents, it was determined that at lower initial concentrations of lead, ion exchange of inorganic cations in zeolites with lead, together with uptake of hydrogen dominated, while at higher initial lead concentrations beside these processes, chemisorption of lead occurred. Significantly higher sorption of lead was achieved with Fe(III)-modified zeolite. From sorption isotherms, maximum sorbed amounts of lead, under the applied experimental conditions, were 66 mg/g for the natural and 133 mg/g for Fe(III)- modified zeolite. The best fit of experimental data was achieved with the Freundlich model (R2 ≥ 0.94).

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekt / tema
011-0000000-2239 - Prirodni zeoliti u zaštiti voda (Jelena Perić, )

Ustanove
Kemijsko-tehnološki fakultet, Split

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • CA Search (Chemical Abstracts)


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