@article{MTMT:34630364, title = {Study of phosphate sorption on rendzina soil by heterogeneous isotopic exchange: a biexponential kinetic model}, url = {https://m2.mtmt.hu/api/publication/34630364}, author = {Vörös, Zoltán János and Kónya, József and M. Nagy, Noémi}, doi = {10.1007/s10967-023-09325-1}, journal-iso = {J RADIOANAL NUCL CHEM}, journal = {JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY}, unique-id = {34630364}, issn = {0236-5731}, keywords = {Langmuir isotherm; Heterogeneous isotopic exchange; Biexponential kinetic model; Weakly bonded phosphate; Phosphate sorption on soil}, year = {2024}, eissn = {1588-2780} } @CONFERENCE{MTMT:33826163, title = {Heterogeneous isotope exchange in the study of phosphorous forms of soils}, url = {https://m2.mtmt.hu/api/publication/33826163}, author = {M. Nagy, Noémi and Buzetzky, Dóra and Kovács, Eszter Mária and Zoltán, János Vörös and Kónya, József}, booktitle = {Book of abstracts}, unique-id = {33826163}, year = {2023}, pages = {164}, orcid-numbers = {Buzetzky, Dóra/0000-0002-9157-3810; Kovács, Eszter Mária/0000-0002-3117-2521} } @article{MTMT:33187007, title = {Analysis of phosphorus forms on different soil types using heterogeneous isotope exchange reaction}, url = {https://m2.mtmt.hu/api/publication/33187007}, author = {Buzetzky, Dóra and Kónya, József and Kovács, Eszter Mária and Balláné Kovács, Andrea and Erdeiné Kremper, Rita and Kátai, János and M. Nagy, Noémi}, doi = {10.1016/j.still.2022.105557}, journal-iso = {SOIL TILL RES}, journal = {SOIL & TILLAGE RESEARCH}, volume = {225}, unique-id = {33187007}, issn = {0167-1987}, abstract = {Pot experiments and soil incubation were carried out to follow the processes of added phosphorus (P) fertilizer using radioisotope tracer technique, heterogeneous isotope exchange. Four types of soils were investigated (Dystric Arenosol (Humic), Calcic Vertisol (Gleyic), Rendzic Phaeozem (Hyperhumic), Calcic Gleysol(Arenic, Humic)). The changes of phosphate fractions (water-soluble (Pw), isotopically exchangeable (PIE), ammonium lactate soluble phosphorus (PAL), and tightly sorbed phosphorus (Ptightly)) in soil were determined as a function of P supply, incubation time and the plant culture. The soil samples were incubated at different times (1, 3, 13weeks) and phosphate quantities. 0, 40, 80, 160, 320 mg P/kg soil doses of P fertilizer were added to the soils. After incubation, perennial ryegrass (Lolium perenne L.) was sown. A significant correlation was found between the sum of Pw and PIE and Puptake of plant proving that these values can be good indicators of plant available phosphorus. During plant culture, the Pw and PIE values always decrease showing that plant directly utilizes these phosphate forms. The transformation of added phosphate to tightly sorbed phosphate is the highest for soils with great humus content.}, year = {2023}, eissn = {1879-3444}, orcid-numbers = {Buzetzky, Dóra/0000-0002-9157-3810; Kovács, Eszter Mária/0000-0002-3117-2521} } @inproceedings{MTMT:33286391, title = {Foszfátionok heterogén izotópcseréje savanyú homoktalajon - nemmonoton kinetika}, url = {https://m2.mtmt.hu/api/publication/33286391}, author = {Vörös, Zoltán János and Buzetzky, Dóra and Kovács, Eszter Mária and Kónya, József and M. Nagy, Noémi}, booktitle = {Őszi Radiokémiai Napok 2022}, unique-id = {33286391}, year = {2022}, pages = {53-58}, orcid-numbers = {Buzetzky, Dóra/0000-0002-9157-3810; Kovács, Eszter Mária/0000-0002-3117-2521} } @{MTMT:33187162, title = {Sn-bentonit előállítása és szerkezetvizsgálata pertechnetát megkötéséhez}, url = {https://m2.mtmt.hu/api/publication/33187162}, author = {Kovács, Eszter Mária and Buzetzky, Dóra and Soha, Márton and Fodor, Tamás and Kónya, Péter and Stichleutner, Sándor and Kubuki, Shiro and Kuzmann, Ernő and Kónya, József and M. Nagy, Noémi}, booktitle = {Őszi Radiokémiai Napok 2022}, unique-id = {33187162}, year = {2022}, pages = {22-23}, orcid-numbers = {Kovács, Eszter Mária/0000-0002-3117-2521; Buzetzky, Dóra/0000-0002-9157-3810; Kuzmann, Ernő/0000-0002-0183-6649} } @article{MTMT:33124346, title = {Preparation and structure analyses of Sn-bentonite for pertechnetate removal}, url = {https://m2.mtmt.hu/api/publication/33124346}, author = {Kovács, Eszter Mária and Buzetzky, Dóra and Soha, Márton and Fodor, Tamás and Kónya, Péter and Stichleutner, Sándor and Kubuki, Shiro and Kuzmann, Ernő and Kónya, József and M. Nagy, Noémi}, doi = {10.1016/j.psep.2022.09.075}, journal-iso = {PROCESS SAF ENVIRON}, journal = {PROCESS SAFETY AND ENVIRONMENTAL PROTECTION}, volume = {168}, unique-id = {33124346}, issn = {0957-5820}, abstract = {Tin (Sn) -bentonite was prepared by ion exchange method from Ca-bentonite. For the ion exchange process, tinchloride (SnCl2) solution was prepared from metallic tin, and the tin concentration was determined by Microwave Plasma Atomic Emission Spectroscopy (MP-AES). Sn-bentonite was characterized by X-ray fluorescence spectrometry (XRF), X-ray powder diffraction (XRPD), X-ray photoelectron spectroscopy (XPS) and 119Sn as well as iron-57 ( 57Fe) Mossbauer ? spectroscopy. 119Sn Mossbauer ? spectroscopy and XPS undoubtedly revealed both Sn+2 and Sn+4 ions in Sn-bentonite. SnII was attributed to be incorporated into the interlayer space while SnIV located partly in the octahedral position and in the interlayer space of montmorillonite. The removal of radioactive pertechnetate anion ( 99mTcO4 - ) was studied on Sn-bentonite in aqueous and artificial urine media. Based on the measurement results, 99mTcO4 - ion can be removed, in case of aqueous media, the equilibrium is reached after 5 mins (x = 99.9 ± 0.01%, k = 4.2 ± 0.83 1/min) (Buzetzky et al., 2019), while in the case of urine media the equilibrium is reached after 30 mins (x = 59.1% ± 2.7, k = 0.18 ± 0.05 1/min). Pertechnetate anoin sorption on tin-bentonite is a (Sn(II/IV)-TcO4 - ) redox reaction. Thus, Sn-bentonite can be a suitable sorbent for radioactive waste management.}, keywords = {MONTMORILLONITE; Structural changes; radioactive waste management; Sn incorporation; Pertechnetate removal}, year = {2022}, eissn = {1744-3598}, pages = {133-141}, orcid-numbers = {Kovács, Eszter Mária/0000-0002-3117-2521; Buzetzky, Dóra/0000-0002-9157-3810; Kuzmann, Ernő/0000-0002-0183-6649} } @{MTMT:32916988, title = {Application of cation-exchanged bentonites in nuclear waste treatment}, url = {https://m2.mtmt.hu/api/publication/32916988}, author = {Buzetzky, Dóra and Kovács, Eszter Mária and M. Nagy, Noémi and Kónya, József}, booktitle = {6th European Congress on Radiation Protection : Book of Abstracts : Radiation Protection For Everyone}, unique-id = {32916988}, year = {2022}, pages = {102-103}, orcid-numbers = {Buzetzky, Dóra/0000-0002-9157-3810; Kovács, Eszter Mária/0000-0002-3117-2521} } @{MTMT:32866392, title = {Preparation of a sorbent suitable for sorption of anionic and cationic radioactive contaminants}, url = {https://m2.mtmt.hu/api/publication/32866392}, author = {Kovács, Eszter Mária and Buzetzky, Dóra and Kónya, József and M. Nagy, Noémi}, booktitle = {6th European Congress on Radiation Protection : Book of Abstracts : Radiation Protection For Everyone}, unique-id = {32866392}, year = {2022}, pages = {103-104}, orcid-numbers = {Kovács, Eszter Mária/0000-0002-3117-2521; Buzetzky, Dóra/0000-0002-9157-3810} } @book{MTMT:32233757, title = {Interfacial Chemistry of Rocks and Soils. 2nd edition}, url = {https://m2.mtmt.hu/api/publication/32233757}, isbn = {9781003020080}, author = {M. Nagy, Noémi and Kónya, József}, doi = {10.1201/9781003020080}, publisher = {CRC Press - Taylor and Francis Group}, unique-id = {32233757}, year = {2022} } @inproceedings{MTMT:32500342, title = {ANIONOS ÉS KATIONOS RADIOAKTÍV SZENNYEZŐK MEGKÖTÉSÉRE ALKALMAS SZORBENS ELŐÁLLÍTÁSA}, url = {https://m2.mtmt.hu/api/publication/32500342}, author = {Kovács, Eszter Mária and Buzetzky, Dóra and Kónya, József and M. Nagy, Noémi}, booktitle = {Őszi Radiokémiai Napok 2021}, unique-id = {32500342}, year = {2021}, pages = {42-46}, orcid-numbers = {Kovács, Eszter Mária/0000-0002-3117-2521; Buzetzky, Dóra/0000-0002-9157-3810} }