The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions
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2014
Authors
Jevtic, SanjaArcon, Iztok
Recnik, Aleksander
Babić, Biljana M.
Mazaj, Matjai
Pavlović, Jelena
Matijašević, Danka
Niksic, Miomir
Rajic, Nevenka
Article (Published version)
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Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed th...e inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form. (C) 2014 Published by Elsevier Inc.
Keywords:
Clinoptilolite / EXAFS / TEM / Selenium / MushroomSource:
Microporous and Mesoporous Materials, 2014, 197, 92-100Funding / projects:
- Oxide-based environmentally-friendly porous materials for genotoxic substances removal (RS-MESTD-Basic Research (BR or ON)-172018)
- Slovenian Research Agency [P1-0112], ELETTRA (beamline XAFS, project) [20115112]
DOI: 10.1016/j.micromeso.2014.06.008
ISSN: 1387-1811; 1873-3093
WoS: 000340990200013
Scopus: 2-s2.0-84903955005
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VinčaTY - JOUR AU - Jevtic, Sanja AU - Arcon, Iztok AU - Recnik, Aleksander AU - Babić, Biljana M. AU - Mazaj, Matjai AU - Pavlović, Jelena AU - Matijašević, Danka AU - Niksic, Miomir AU - Rajic, Nevenka PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/82 AB - Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed the inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form. (C) 2014 Published by Elsevier Inc. T2 - Microporous and Mesoporous Materials T1 - The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions VL - 197 SP - 92 EP - 100 DO - 10.1016/j.micromeso.2014.06.008 ER -
@article{ author = "Jevtic, Sanja and Arcon, Iztok and Recnik, Aleksander and Babić, Biljana M. and Mazaj, Matjai and Pavlović, Jelena and Matijašević, Danka and Niksic, Miomir and Rajic, Nevenka", year = "2014", abstract = "Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed the inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form. (C) 2014 Published by Elsevier Inc.", journal = "Microporous and Mesoporous Materials", title = "The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions", volume = "197", pages = "92-100", doi = "10.1016/j.micromeso.2014.06.008" }
Jevtic, S., Arcon, I., Recnik, A., Babić, B. M., Mazaj, M., Pavlović, J., Matijašević, D., Niksic, M.,& Rajic, N.. (2014). The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions. in Microporous and Mesoporous Materials, 197, 92-100. https://doi.org/10.1016/j.micromeso.2014.06.008
Jevtic S, Arcon I, Recnik A, Babić BM, Mazaj M, Pavlović J, Matijašević D, Niksic M, Rajic N. The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions. in Microporous and Mesoporous Materials. 2014;197:92-100. doi:10.1016/j.micromeso.2014.06.008 .
Jevtic, Sanja, Arcon, Iztok, Recnik, Aleksander, Babić, Biljana M., Mazaj, Matjai, Pavlović, Jelena, Matijašević, Danka, Niksic, Miomir, Rajic, Nevenka, "The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions" in Microporous and Mesoporous Materials, 197 (2014):92-100, https://doi.org/10.1016/j.micromeso.2014.06.008 . .