TY - JOUR AU - Buzetzky, Dóra AU - Tóth, Csilla Noémi AU - M. Nagy, Noémi AU - Kónya, József TI - Application of Modified Bentonites for Arsenite (III) Removal from Drinking Water JF - PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING J2 - PERIOD POLYTECH CHEM ENG VL - 63 PY - 2019 IS - 1 SP - 113 EP - 121 PG - 9 SN - 0324-5853 DO - 10.3311/PPch.12197 UR - https://m2.mtmt.hu/api/publication/30487663 ID - 30487663 N1 - Funding Agency and Grant Number: EUEuropean Union (EU); European Regional Development FundEuropean Union (EU) [GINOP-2.3.2-15-2016-00008]; Hungarian National Research, Development, and Innovation Office [NKFIH K 120265] Funding text: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008.; The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). Lajos Imre Isotope Laboratory, Department of Physical Chemistry, Institute of Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Agilent Atomic Spectroscopy Partner Laboratory, Department of Inorganic and Analytical Chemistry, Institute of Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Cited By :2 Export Date: 11 October 2020 Correspondence Address: Buzetzky, D.; Lajos Imre Isotope Laboratory, Department of Physical Chemistry, Institute of Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, Hungary; email: dorabeata@science.unideb.hu Funding details: European Commission, EC Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI, K 120265 Funding text 1: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. Funding text 2: The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). Lajos Imre Isotope Laboratory, Department of Physical Chemistry, Institute of Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Agilent Atomic Spectroscopy Partner Laboratory, Department of Inorganic and Analytical Chemistry, Institute of Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, Debrecen, H-4032, Hungary Cited By :3 Export Date: 5 February 2021 Correspondence Address: Buzetzky, D.; Lajos Imre Isotope Laboratory, Egyetem tér 1, Hungary; email: dorabeata@science.unideb.hu Funding details: European Commission, EC Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, K 120265 Funding text 1: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. Funding text 2: The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). AB - Four modified bentonites (La(III), Y(III), Fe(III)) were prepared by ion exchange process to remove arsenite (III) ions from water. The modified bentonites were examined with X-ray fluorescence spectroscopy (XRF) and X-ray diffraction (XRD). The rare earth (REE) and Fe(III) ion content in bentonite was higher than the CEC values obtained by ammonium acetate method related to trivalent ions (2.7 x 10(-4) mol g(-1)). The kinetics, equilibrium time, sorption isotherms and desorption experiments were examined. Lanthanum, yttrium and cerium bentonite can bind similar amount of arsenite(III) ions. Iron-bentonite cannot bind significant amounts of arsenite ions. The active sites and the solubilities of the sorption complex were determined. Arsenite (III) ions sorb in the interlayer space as REEAsO3. The solubility of the arsenite complex was two orders of magnitude smaller than that of the phosphate complex. After desorption the eluted amount of arsenite (III) was 55% related to the sorbed amount of arsenite. The d(001) basal spacing of modified bentonites and that of after sorption and desorption was measured. After the sorption of arsenite ion on lanthanum bentonite, the d(001) basal spacing of montmorillonite was decreased and after desorption an increase in d(001) basal spacing was observed again. Modified bentonites can be used for removing arsenic ions from water. LA - English DB - MTMT ER - TY - JOUR AU - Buzetzky, Dóra AU - Kovács, Eszter Mária AU - M. Nagy, Noémi AU - Kónya, József TI - Sorption of pertechnetate anion by cation modified bentonites JF - JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY J2 - J RADIOANAL NUCL CHEM VL - 322 PY - 2019 IS - 3 SP - 1771 EP - 1776 PG - 6 SN - 0236-5731 DO - 10.1007/s10967-019-06852-8 UR - https://m2.mtmt.hu/api/publication/30853468 ID - 30853468 N1 - Funding Agency and Grant Number: University of Debrecen (DE); European Regional Development FundEuropean Union (EU) [GINOP-2.3.2-15-201600008]; Hungarian National Research, Development, and Innovation Office [NKFIH K 120265]; EUEuropean Union (EU) Funding text: Open access funding provided by University of Debrecen (DE). The authors thank Peter Konya for the X-ray diffraction measurements, Erno Kuzmann for Mossbauer measurements. The research was supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-201600008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). Export Date: 11 October 2020 CODEN: JRNCD Correspondence Address: Buzetzky, D.; 1mre Lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen, Egyetem tér 1, Hungary; email: dorabeata@science.unideb.hu Funding details: European Commission, EU Funding details: Office of Research, Innovation and Economic Development, California State Polytechnic University, Pomona, ORIED Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI, K 120265 Funding text 1: Open access funding provided by University of Debrecen (DE). The authors thank Peter Konya for the X-ray diffraction measurements, Ernő Kuzmann for Mössbauer measurements. The research was supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Cited By :1 Export Date: 5 February 2021 CODEN: JRNCD Correspondence Address: Buzetzky, D.; 1mre Lajos Isotope Laboratory, Egyetem tér 1, Hungary; email: dorabeata@science.unideb.hu Funding details: European Commission, EC Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, K 120265 Funding text 1: Open access funding provided by University of Debrecen (DE). The authors thank Peter Konya for the X-ray diffraction measurements, Ernő Kuzmann for Mössbauer measurements. The research was supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). LA - English DB - MTMT ER - TY - JOUR AU - Buzetzky, Dóra AU - M. Nagy, Noémi AU - Kónya, József TI - Use of La-, Ce-, Y-, Fe- bentonites for Removing Phosphate Ions from Aqueous Media JF - PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING J2 - PERIOD POLYTECH CHEM ENG VL - 61 PY - 2017 IS - 1 SP - 27 EP - 32 PG - 6 SN - 0324-5853 DO - 10.3311/PPch.9871 UR - https://m2.mtmt.hu/api/publication/3208230 ID - 3208230 N1 - Funding details: Office of Research, Innovation and Economic Development, California State Polytechnic University, Pomona Funding details: Erzincan Üniversitesi Funding details: European Regional Development Fund, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, K 120265 Funding text 1: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). The authors thank dr. Klara Dufresne for the improvement of English. Funding Agency and Grant Number: EUEuropean Union (EU); European Regional Development FundEuropean Union (EU) [GINOP-2.3.2-15-2016-00008]; Hungarian National Research, Development, and Innovation Office (NKFIH) [K 120265] Funding text: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). The authors thank dr. Klara Dufresne for the improvement of English. Cited By :3 Export Date: 11 October 2020 Correspondence Address: Buzetzky, D.; Imre lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen Debrecen, Egyetem tér 1, Hungary; email: buzetzkyd@gmail.com Funding details: European Commission, EC Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI, K 120265 Funding text 1: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). The authors thank dr. Klara Dufresne for the improvement of English. Cited By :4 Export Date: 5 February 2021 Correspondence Address: Buzetzky, D.; Imre lajos Isotope Laboratory, Egyetem tér 1, Hungary; email: buzetzkyd@gmail.com Funding details: European Commission, EC Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, K 120265 Funding text 1: The project presented in this article is supported by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008. The work was supported by the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). The authors thank dr. Klara Dufresne for the improvement of English. AB - Clays play an important role in the environment. By removing cations and anions either through ion exchange, adsorption and precipitation, or all these combined, they can act as nat - ural decontaminating agents of numerous pollutants. In this study, four modified bentonites (La-, Ce-, Y-, Fe-bentonite) were prepared and characterized, and their phosphate sorption capabilities were measured in batch experiments. Equilibrium times were also examined. The activation energy of the sorp - tion process was calculated. The La- , Ce- and Y-bentonite can bind similar amount of phosphate ions, while iron-bentonite can bind only half of it compared to La-, Ce- and Y-bentonite. LA - English DB - MTMT ER - TY - JOUR AU - Kuzmann, Ernő AU - Garg, VK AU - Singh, H AU - de Oliveira, AC AU - Pati, SS AU - Homonnay, Zoltán AU - Rudolf, M AU - Molnár, ÁM AU - Kovács, Eszter Mária AU - Baranyai, Edina AU - Kubuki, S AU - M. Nagy, Noémi AU - Kónya, József TI - Mössbauer study of pH dependence of iron-intercalation in montmorillonite JF - HYPERFINE INTERACTIONS J2 - HYPERFINE INTERACT VL - 237 PY - 2016 IS - 1 PG - 6 SN - 0304-3843 DO - 10.1007/s10751-016-1314-5 UR - https://m2.mtmt.hu/api/publication/3097530 ID - 3097530 N1 - WoS:hiba:000379534100001 2020-12-06 01:42 cikkazonosító nem egyezik Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary Institute of Physics, University of Brasília, Brasília, DF, Brazil Imre Lajos Isotope Laboratory, Department of Colloid and Environmental Chemistry, University of Debrecen, Debrecen, Hungary Department of Inorganic and Analytical Chemistry, University of Debrecen, Debrecen, Hungary Department of Chemistry, Tokyo Metropolitan University, Tokyo, 192-0397, Japan Cited By :4 Export Date: 5 February 2021 CODEN: HYIND Correspondence Address: Kuzmann, E.; Institute of Physics, Brazil; email: kuzmann@caesar.elte.hu AB - 57Fe Mössbauer spectroscopy and XRD have successfully been applied to show the incorporation of Fe ion into the interlayer space of montmorillonite via treatment with FeCl 3 in acetone. The 78K 57Fe Mössbauer spectra of montmorillonite samples reflected magnetically split spectrum part indicating the intercalation of iron into the interlayer of montmorillonite via the treatment with FeCl 3+acetone and washed with water until the initial pH=2.3 increased to pH=4.14. It was found that the occurrence of intercalated iron in the form of oxide-oxihydroxide in montmorillonite increases with the pH. Intercalation was confirmed by the gradual increase in the basal spacing d001 with pH. © 2016, Springer International Publishing Switzerland. LA - English DB - MTMT ER - TY - JOUR AU - Kuzmann, Ernő AU - Singh, LH AU - Garg, VK AU - de Oliveira, AC AU - Kovács, Eszter Mária AU - Molnár, ÁM AU - Homonnay, Zoltán AU - Kónya, Péter AU - M. Nagy, Noémi AU - Kónya, József TI - Mössbauer study of the effect of rare earth substitution into montmorillonite JF - HYPERFINE INTERACTIONS J2 - HYPERFINE INTERACT VL - 237 PY - 2016 IS - 1 PG - 8 SN - 0304-3843 DO - 10.1007/s10751-016-1225-5 UR - https://m2.mtmt.hu/api/publication/3030404 ID - 3030404 N1 - N1 Funding Details: A127/2013, CAPES, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Institute of Physics, University of Brasília, Brasília DF, 70919-970, Brazil Institute of Chemistry, Eötvös Loránd University, Budapest, 1117, Hungary Isotope Laboratory, Department of Colloid and Environmental Chemistry, University of Debrecen, Debrecen, Hungary Geological and Geophysical Institute of Hungary, Hungary, 1143, Hungary Cited By :8 Export Date: 5 February 2021 CODEN: HYIND Correspondence Address: Kuzmann, E.; Institute of Chemistry, Hungary; email: kuzmann@caesar.elte.hu Funding details: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES, A127/2013 Funding details: Hungarian Scientific Research Fund, OTKA, K115913, K115784 Funding text 1: The financial supports from the CAPES (No A127/2013) and OTKA (No K115913 and K115784) grants are acknowledged. E.K. thanks to Dr. P. Kovacs-Palffy for the valuable discussion. AB - Novel montmorillonites were prepared by the exchange of the interlayer cations with a series of rare earth cations (La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, and Er) and characterized by XRD, XRF, SEM, chemical analysis and 57Fe Mössbauer spectroscopy. An unexpected magnetically split component, assigned to iron being in the interlayer space, was observed in the Mössbauer spectra at 78K in some rare earth cation exchanged montmorillonite. This paper is the initial report about this observation. The transition of iron from the octahedral site to the interlayer and possible incorporation of rare earths in sites different from those which are in the interlayer space was concluded. © 2016, Springer International Publishing Switzerland. LA - English DB - MTMT ER -