TY - BOOK AU - M. Nagy, Noémi AU - Kónya, József TI - Interfacial Chemistry of Rocks and Soils. 2nd edition TS - 2nd edition T3 - surfactant science series ET - 2 PB - CRC Press - Taylor and Francis Group CY - Boca Raton, Florida PY - 2022 SP - 272 SN - 9781000465112 DO - 10.1201/9781003020080 UR - https://m2.mtmt.hu/api/publication/32233757 ID - 32233757 N1 - Export Date: 16 November 2022 LA - English DB - MTMT ER - TY - JOUR AU - Kadlecikova, Magdalena AU - Breza, Juraj AU - Dekan, Julius AU - Jesenak, Karol AU - Vanco, Lubomir AU - Bediova, Katarina TI - A study of catalyst particles encapsulated inside multiwalled carbon nanotubes on zeolite and montmorillonite JF - MICROELECTRONIC ENGINEERING J2 - MICROELECTRON ENG VL - 242-243 PY - 2021 PG - 6 SN - 0167-9317 DO - 10.1016/j.mee.2021.111556 UR - https://m2.mtmt.hu/api/publication/32318481 ID - 32318481 N1 - Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovičova 3, Bratislava, 812 19, Slovakia Faculty of Natural Sciences, Comenius University, Mlynská dolina, Bratislava, 842 15, Slovakia Centre for Nanodiagnostics, Slovak University of Technology in Bratislava, Vazovova 5, Bratislava, 812 43, Slovakia Cited By :4 Export Date: 11 April 2023 CODEN: MIENE Correspondence Address: Breza, J.; Faculty of Electrical Engineering and Information Technology, Ilkovičova 3, Slovakia; email: juraj.breza@stuba.sk AB - Synthesis of carbon nanotubes on zeolite and montmorillonite is presented. Prior to synthesis, minerals were enriched by particles of iron. Synthesis of carbon nanotubes was performed by hot filament chemical vapour deposition using methane as a source of carbon. A high density of carbon nanotubes was observed in the whole volume of zeolite and montmorillonite. Iron containing particles catalysing the formation and growth of carbon nanotubes were visualized at the ends of nanotubes by field-emission scanning electron microscopy in a combined mode of secondary and backscattered electrons. 57Fe Mo center dot ssbauer spectroscopy was employed to find the oxidation state of iron in Fe-montmorillonite before the synthesis of nanotubes and in the structures of nanocomposites after the synthesis. The metallic particles in the structures of nanocomposites at the ends of carbon nanotubes are characterized by Mo center dot ssbauer spectroscopy mainly as ferromagnetic cementite (Fe3C). LA - English DB - MTMT ER - TY - JOUR AU - Buzetzky, Dóra AU - M. Nagy, Noémi AU - Kónya, József TI - Use of silver-bentonite in sorption of chloride and iodide ions JF - JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY J2 - J RADIOANAL NUCL CHEM VL - 326 PY - 2020 IS - 3 SP - 1795 EP - 1804 PG - 10 SN - 0236-5731 DO - 10.1007/s10967-020-07457-2 UR - https://m2.mtmt.hu/api/publication/31745456 ID - 31745456 AB - Ag-bentonite was prepared by ion exchange process to sorb iodide and chloride ions in batch experiments. The modified bentonite was examined with XRF and XRD. 75% of the cation exchange capacity was exchanged by silver ions. It was found that the sorption of chloride ions is an exothermic precipitation process because the solubility decreases with increasing temperature. In the case of iodide sorption, the dissolution of AgI was observed under high concentration of non-radioactive iodide ions, which is well known in analytical chemistry. The phenomenon occurs not only in the bulk aqueous phase but also in the interlayer space of montmorillonite. LA - English DB - MTMT ER - TY - CHAP AU - Natividad, Reyna AU - Mendoza, Arisbeth AU - Brewer, Sharon E. AU - Martínez-Vargas, Sandra Luz AU - Pérez-Mazariego, J. L. AU - Novoa, Karen Adriana AU - Gómez-Oliván, Leobardo Manuel AU - Romero, Rubi ED - Gómez-Oliván, Leobardo Manuel TI - Photo-Fenton Treatment of a Pharmaceutical Industrial Effluent Under Safe pH Conditions T2 - Non-Steroidal Anti-Inflammatory Drugs in Water PB - Springer Netherlands SN - 9783030562939 T3 - The Handbook of Environmental Chemistry, ISSN 1867-979X ; 96. PY - 2020 SP - 241 EP - 259 PG - 19 DO - 10.1007/698_2020_551 UR - https://m2.mtmt.hu/api/publication/31953948 ID - 31953948 N1 - Chemical Engineering Lab., Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Universidad Autónoma del Estado de México, Toluca, Mexico Chemistry Department, Faculty of Science, Thompson Rivers University, Kamloops, BC, Canada Faculty of Chemistry, Universidad Autonoma del Estado de México, Paseo Colón Esq. Paseo Tollocan, Toluca, Mexico Physics Department, Faculty of Science, Universidad Nacional Autonoma de Mexico, Ciudad de México, Mexico Cited By :1 Export Date: 12 April 2023 Correspondence Address: Romero, R.; Chemical Engineering Lab., Mexico; email: rromeror@uaemex.mx LA - English DB - MTMT ER - 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 - Kovács, Eszter Mária AU - Kónya, József AU - M. Nagy, Noémi TI - Structural curiosities of lanthanide (Ln)-modified bentonites analyzed by radioanalytical methods JF - JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY J2 - J RADIOANAL NUCL CHEM VL - 322 PY - 2019 IS - 3 SP - 1747 EP - 1754 PG - 8 SN - 0236-5731 DO - 10.1007/s10967-019-06765-6 UR - https://m2.mtmt.hu/api/publication/30809316 ID - 30809316 N1 - Funding Agency and Grant Number: University of Debrecen (DE); EUEuropean Union (EU); European Regional DevelopmentEuropean Union (EU) [GINOP-2.3.2-15-2016-00008]; Hungarian National Research, Development, and Innovation Office [NKFIH K 120265] Funding text: Open access funding provided by University of Debrecen (DE).This study was financed by the EU and co-financed by the European Regional Development (GINOP-2.3.2-15-2016-00008); the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). Export Date: 5 February 2021 CODEN: JRNCD Correspondence Address: Kovács, E.M.; Department of Physical Chemistry, Egyetem tér, Hungary; email: kovacs.eszter.maria@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).This study was financed by the EU and co-financed by the European Regional Development (GINOP-2.3.2-15-2016-00008); the Hungarian National Research, Development, and Innovation Office (NKFIH K 120265). LA - English DB - MTMT ER - TY - JOUR AU - Kuzmann, Ernő AU - Kovács, Eszter Mária AU - Homonnay, Zoltán AU - Csákvári, Szabolcs AU - Klencsár, Zoltán AU - Kónya, Péter AU - M. Nagy, Noémi AU - Kónya, József TI - Fe microenvironments in heat treated rare-earth exchanged montmorillonites JF - HYPERFINE INTERACTIONS J2 - HYPERFINE INTERACT VL - 240 PY - 2019 IS - 1 PG - 7 SN - 0304-3843 DO - 10.1007/s10751-019-1622-7 UR - https://m2.mtmt.hu/api/publication/30782621 ID - 30782621 N1 - Funding Agency and Grant Number: Eotvos Lorand University (ELTE); NKFIH OTKA [K115913, K115784, K131963, K120265]; Hungarian-Croatian ST [TET_16-1-2016-0002]; EU - European Regional Development Fund [GINOP-2.3.2-15-2016-00008] Funding text: Open access funding provided by Eotvos Lorand University (ELTE). The financial supports from NKFIH OTKA (No. K115913, K115784, K131963, and K120265) and Hungarian-Croatian S&T (No TET_16-1-2016-0002) as well as by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008 grants are acknowledged. Z.K. expresses thanks to Prof. Ferenc Simon (Institute of Physics, Budapest University of Technology and Economics, Budapest, Hungary) for making available the applied spectrometer for recording the EMR spectra. Funding Agency and Grant Number: Eotvos Lorand University (ELTE); NKFIH OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [K115913, K115784, K131963, K120265]; Hungarian-Croatian ST [TET_16-1-2016-0002]; EU - European Regional Development FundEuropean Union (EU) [GINOP-2.3.2-15-2016-00008] Funding text: Open access funding provided by Eotvos Lorand University (ELTE). The financial supports from NKFIH OTKA (No. K115913, K115784, K131963, and K120265) and Hungarian-Croatian S&T (No TET_16-1-2016-0002) as well as by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008 grants are acknowledged. Z.K. expresses thanks to Prof. Ferenc Simon (Institute of Physics, Budapest University of Technology and Economics, Budapest, Hungary) for making available the applied spectrometer for recording the EMR spectra. Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary Imre Lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen, Debrecen, Hungary Centre for Energy Research, HAS, Budapest, Hungary Geological and Geophysical Institute of Hungary, Budapest, Hungary Export Date: 5 February 2021 CODEN: HYIND Correspondence Address: Kuzmann, E.; Institute of Chemistry, Hungary; email: kuzmann@caesar.elte.hu Funding details: European Commission, EC Funding details: TÉT_16-1-2016-0002 Funding details: European Regional Development Fund, FEDER, GINOP-2.3.2-15-2016-00008 Funding text 1: Open access funding provided by Eötvös Loránd University (ELTE). The financial supports from NKFIH OTKA (No. K115913, K115784, K131963, and K120265) and Hungarian-Croatian S&T (No TÉT_16-1-2016-0002) as well as by the EU and co-financed by the European Regional Development Fund under the project GINOP-2.3.2-15-2016-00008 grants are acknowledged. Z.K. expresses thanks to Prof. Ferenc Simon (Institute of Physics, Budapest University of Technology and Economics, Budapest, Hungary) for making available the applied spectrometer for recording the EMR spectra. AB - The rare-earth bentonites were prepared from Ca-bentonite by suspending Ca-bentonite in rare-earth (Ce, La, Y) perchlorate solution. 57Fe Mössbauer spectra of rare earth montmorillonites before heat treatments showed a doublet envelop at room temperature, reflecting dominantly Fe3+ assigned to (cis) octahedral site in the montmorillonite. At the same time, the 80 K spectra of these rare-earth exchanged montmorillonites revealed an additional magnetically split component, too, associated with iron atoms intercalated in the interlayer space. In the case of heat treated samples (250 °C, 360 °C and 500 °C for 4 h), a new doublet component associated with Fe3+ at trans octahedral site, appeared in both the 295 K and 80 K Mössbauer spectra. Powder X-ray diffractometry (XRD) measurements of the heat treated rare earth montmorillonites revealed that a gradual mineral phase transformation of montmorillonite to muscovite occurred upon the applied heat treatments, being consistent with the completing electron magnetic resonance (EMR) and Mössbauer spectroscopy (MS) results. 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 - Kovács, Eszter Mária AU - Baradács, Eszter AU - Kónya, Péter AU - Kovács-Pálffy, P AU - Harangi, Sándor AU - Kuzmann, Ernő AU - Kónya, József AU - M. Nagy, Noémi TI - Preparation and structure's analyses of lanthanide (Ln) -exchanged bentonites JF - COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS J2 - COLLOID SURFACE A VL - 522 PY - 2017 SP - 287 EP - 294 PG - 8 SN - 0927-7757 DO - 10.1016/j.colsurfa.2017.02.085 UR - https://m2.mtmt.hu/api/publication/3208553 ID - 3208553 N1 - Funding Agency and Grant Number: EUEuropean Union (EU); European Regional DevelopmentEuropean Union (EU) [GINOP-2.3.2-15-2016-00008]; Hungarian National Research, Development, and Innovation Office [NKFIH K 120265] Funding text: This work was supported by the EU and co-financed by the European Regional Development [GINOP-2.3.2-15-2016-00008]; the Hungarian National Research, Development, and Innovation Office [NKFIH K 120265]. Imre Lajos Isotope Laboratory, Department of Colloid and Environmental Chemistry, University of Debrecen, 4032 Egyetem tér 1., Debrecen, Hungary Department of Solid State Physics, University of Debrecen, 4026 Bem tér 18/b, Debrecen, Hungary Geological and Geophysical Institute of HungaryH-1143, Hungary Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, H-4032, Hungary Institute of Chemistry, Eötvös Loránd University, 1117, Budapest, Hungary Cited By :8 Export Date: 5 February 2021 CODEN: CPEAE Correspondence Address: Nagy, N.M.; Imre Lajos Isotope Laboratory, 4032 Egyetem tér 1., Hungary; email: nagy.noemi@science.unideb.hu AB - The interaction between Lanthanides (Ln)- ions and Ca-bentonite and the structural changes accompanying were studied. Ln-exchanged bentonites were prepared from Ca-bentonite (Istenmezeje, Hungary) by ion exchange in three consecutive washings with lanthanide solutions. Scanning Eletronmicroscopy Energy Dispersive X-ray spectroscopy (SEM-EDX) studies showed even distribution of Lns and other components of bentonite. The natural bentonite and the lanthnide exchanged bentonites were characterized by X-ray diffraction (XRD), which revealed the same mineral composition, and the increase of the basal spacing of montmorillonite from 1.465 (Ca2+) to 1.577 nm (REE3+). The d001 basal spacing of lanthanide montmorillonite increases as the ion radius of the lanthanide cation increases. The Fe3+, and Lns3+ amount on the bentonite were determined by X-ray-fluorescence spectrometry (XRF) elemental analysis. The amount of exchanged Lns were determined by washing the Ln-bentonite with 1 M ammonium-acetate, and measuring the amount of Ln released, using inductively coupled plasma optical emission spectrometry (ICP-OES). In most Ln-bentonites, the quantity of the exchanged Ln ions was about 80–90% of the cation exchange capacity (CEC) of the bentonite. In case of some lanthanides bentonite (La3+, Ce3+, and Gd3+), however, the sorbed quantity of lanthanum ions was higher than the cation exchange capacity. In case of lanthanum-bentonite, the lanthanide quantity is as high as 136% of CEC. Moreover, the iron(III) content of lanthanum bentonite is less than that of the original Ca-bentonite. Mössbauer spectra of the La-, Ce-, and Gd-exchanged samples at 78 K revealed an unexpected magnetically split component that was absent from the Ca-bentonite. This component may belong to interlayer Fe. This iron can be released from the octahedral positions crystal lattice. © 2017 Elsevier B.V. LA - English DB - MTMT ER - TY - JOUR AU - M. Nagy, Noémi TI - Ioncsere-folyamatok az agyagásványok "nanolaboratóriumában" JF - MAGYAR KÉMIAI FOLYÓIRAT - KÉMIAI KÖZLEMÉNYEK (1997-) J2 - MAGY KÉM FOLY KÉM KÖZL VL - 123 PY - 2017 IS - 1 SP - 25 EP - 31 PG - 7 SN - 1418-9933 DO - 10.24100/MKF.2017.01.25 UR - https://m2.mtmt.hu/api/publication/3225767 ID - 3225767 LA - Hungarian 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 -