Characterization and environmental application of iron-modified zeolite from the Zlatokop deposit
Апстракт
In this paper, characterization of iron-modified zeolite (IMZ) from the Zlatokop deposit and its potential environmental application has been described. The modification procedure includes treatment of natural zeolite (NZ) with Fe(NO3)(3) in an acetate buffer at pH = 3.6 followed by treatment with NaOH and NaNO3. The properties of NZs and IMZs have been determined by analysis of their chemical composition, specific surface area and by X-ray powder diffraction method (XRPD), scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDS), TG-DTG and FTIR analyses. The chemical behaviour of modified zeolite has been examined in the zeolite-ultrapure water system at adjusted initial pH values in the range of 1.71-5.08, and also by determining the zero-point charge. The NZ and IMZ samples have been tested relative to the uptake of zinc ions. The results have shown that the capacity of IMZ samples for zinc ions is three-to-four times higher compared to the NZs. The balance of exchan...geable ions before and after zinc uptake confirms an almost complete stoichiometric relation for both zeolite samples indicating ion exchange as the main process. However, in IMZ samples ion exchange takes place inside the zeolite particle and on activated zeolite particle surface.
Кључне речи:
XRPD / TG-DTG / SEM-EDS / Natural zeolite / Iron-modified zeolite / FTIRИзвор:
Desalination and Water Treatment, 2015, 53, 13, 3557-3569Издавач:
- Desalination Publ, Hopkinton
Финансирање / пројекти:
- Ministry of Science, Education and Sports of the Republic of Croatia [011-0000000-2239]
DOI: 10.1080/19443994.2013.873743
ISSN: 1944-3994
WoS: 000349822100002
Scopus: 2-s2.0-84923622227
Институција/група
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Ugrina, Marin AU - Vukojević-Medvidović, Nediljka AU - Daković, Aleksandra PY - 2015 UR - https://ritnms.itnms.ac.rs/handle/123456789/372 AB - In this paper, characterization of iron-modified zeolite (IMZ) from the Zlatokop deposit and its potential environmental application has been described. The modification procedure includes treatment of natural zeolite (NZ) with Fe(NO3)(3) in an acetate buffer at pH = 3.6 followed by treatment with NaOH and NaNO3. The properties of NZs and IMZs have been determined by analysis of their chemical composition, specific surface area and by X-ray powder diffraction method (XRPD), scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDS), TG-DTG and FTIR analyses. The chemical behaviour of modified zeolite has been examined in the zeolite-ultrapure water system at adjusted initial pH values in the range of 1.71-5.08, and also by determining the zero-point charge. The NZ and IMZ samples have been tested relative to the uptake of zinc ions. The results have shown that the capacity of IMZ samples for zinc ions is three-to-four times higher compared to the NZs. The balance of exchangeable ions before and after zinc uptake confirms an almost complete stoichiometric relation for both zeolite samples indicating ion exchange as the main process. However, in IMZ samples ion exchange takes place inside the zeolite particle and on activated zeolite particle surface. PB - Desalination Publ, Hopkinton T2 - Desalination and Water Treatment T1 - Characterization and environmental application of iron-modified zeolite from the Zlatokop deposit EP - 3569 IS - 13 SP - 3557 VL - 53 DO - 10.1080/19443994.2013.873743 UR - conv_721 ER -
@article{ author = "Ugrina, Marin and Vukojević-Medvidović, Nediljka and Daković, Aleksandra", year = "2015", abstract = "In this paper, characterization of iron-modified zeolite (IMZ) from the Zlatokop deposit and its potential environmental application has been described. The modification procedure includes treatment of natural zeolite (NZ) with Fe(NO3)(3) in an acetate buffer at pH = 3.6 followed by treatment with NaOH and NaNO3. The properties of NZs and IMZs have been determined by analysis of their chemical composition, specific surface area and by X-ray powder diffraction method (XRPD), scanning electron microscopy-energy dispersive X-ray analysis (SEM-EDS), TG-DTG and FTIR analyses. The chemical behaviour of modified zeolite has been examined in the zeolite-ultrapure water system at adjusted initial pH values in the range of 1.71-5.08, and also by determining the zero-point charge. The NZ and IMZ samples have been tested relative to the uptake of zinc ions. The results have shown that the capacity of IMZ samples for zinc ions is three-to-four times higher compared to the NZs. The balance of exchangeable ions before and after zinc uptake confirms an almost complete stoichiometric relation for both zeolite samples indicating ion exchange as the main process. However, in IMZ samples ion exchange takes place inside the zeolite particle and on activated zeolite particle surface.", publisher = "Desalination Publ, Hopkinton", journal = "Desalination and Water Treatment", title = "Characterization and environmental application of iron-modified zeolite from the Zlatokop deposit", pages = "3569-3557", number = "13", volume = "53", doi = "10.1080/19443994.2013.873743", url = "conv_721" }
Ugrina, M., Vukojević-Medvidović, N.,& Daković, A.. (2015). Characterization and environmental application of iron-modified zeolite from the Zlatokop deposit. in Desalination and Water Treatment Desalination Publ, Hopkinton., 53(13), 3557-3569. https://doi.org/10.1080/19443994.2013.873743 conv_721
Ugrina M, Vukojević-Medvidović N, Daković A. Characterization and environmental application of iron-modified zeolite from the Zlatokop deposit. in Desalination and Water Treatment. 2015;53(13):3557-3569. doi:10.1080/19443994.2013.873743 conv_721 .
Ugrina, Marin, Vukojević-Medvidović, Nediljka, Daković, Aleksandra, "Characterization and environmental application of iron-modified zeolite from the Zlatokop deposit" in Desalination and Water Treatment, 53, no. 13 (2015):3557-3569, https://doi.org/10.1080/19443994.2013.873743 ., conv_721 .