TY - JOUR AU - Vörös, Zoltán János AU - Kónya, József AU - M. Nagy, Noémi TI - Study of phosphate sorption on rendzina soil by heterogeneous isotopic exchange: a biexponential kinetic model JF - JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY J2 - J RADIOANAL NUCL CHEM PY - 2024 PG - 18 SN - 0236-5731 DO - 10.1007/s10967-023-09325-1 UR - https://m2.mtmt.hu/api/publication/34630364 ID - 34630364 LA - English DB - MTMT ER - TY - CONF AU - M. Nagy, Noémi AU - Buzetzky, Dóra AU - Kovács, Eszter Mária AU - Zoltán, János Vörös AU - Kónya, József TI - Heterogeneous isotope exchange in the study of phosphorous forms of soils T2 - Book of abstracts PB - Akadémiai Kiadó C1 - Budapest SN - 9789634549024 PY - 2023 SP - 164 UR - https://m2.mtmt.hu/api/publication/33826163 ID - 33826163 LA - English DB - MTMT ER - TY - JOUR AU - Buzetzky, Dóra AU - Kónya, József AU - Kovács, Eszter Mária AU - Balláné Kovács, Andrea AU - Erdeiné Kremper, Rita AU - Kátai, János AU - M. Nagy, Noémi TI - Analysis of phosphorus forms on different soil types using heterogeneous isotope exchange reaction JF - SOIL & TILLAGE RESEARCH J2 - SOIL TILL RES VL - 225 PY - 2023 PG - 11 SN - 0167-1987 DO - 10.1016/j.still.2022.105557 UR - https://m2.mtmt.hu/api/publication/33187007 ID - 33187007 N1 - Funding details: European Commission, EC Funding details: European Regional Development Fund, ERDF, GINOP-2.3.2-15-2016-00008 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, K 120265 Funding details: National Research, Development and Innovation Office Funding text 1: 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 ]. AB - 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. LA - English DB - MTMT ER - TY - CHAP AU - Vörös, Zoltán János AU - Buzetzky, Dóra AU - Kovács, Eszter Mária AU - Kónya, József AU - M. Nagy, Noémi ED - Jószai, István TI - Foszfátionok heterogén izotópcseréje savanyú homoktalajon - nemmonoton kinetika T2 - Őszi Radiokémiai Napok 2022 SN - 9786156018137 PY - 2022 SP - 53 EP - 58 PG - 6 UR - https://m2.mtmt.hu/api/publication/33286391 ID - 33286391 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Kovács, Eszter Mária AU - Buzetzky, Dóra AU - Soha, Márton AU - Fodor, Tamás AU - Kónya, Péter AU - Stichleutner, Sándor AU - Kubuki, Shiro AU - Kuzmann, Ernő AU - Kónya, József AU - M. Nagy, Noémi ED - Jószai, István TI - Sn-bentonit előállítása és szerkezetvizsgálata pertechnetát megkötéséhez T2 - Őszi Radiokémiai Napok 2022 SN - 9786156018137 PY - 2022 SP - 22 EP - 23 PG - 2 UR - https://m2.mtmt.hu/api/publication/33187162 ID - 33187162 LA - English DB - MTMT ER - TY - JOUR AU - Kovács, Eszter Mária AU - Buzetzky, Dóra AU - Soha, Márton AU - Fodor, Tamás AU - Kónya, Péter AU - Stichleutner, Sándor AU - Kubuki, Shiro AU - Kuzmann, Ernő AU - Kónya, József AU - M. Nagy, Noémi TI - Preparation and structure analyses of Sn-bentonite for pertechnetate removal JF - PROCESS SAFETY AND ENVIRONMENTAL PROTECTION J2 - PROCESS SAF ENVIRON VL - 168 PY - 2022 SP - 133 EP - 141 PG - 9 SN - 0957-5820 DO - 10.1016/j.psep.2022.09.075 UR - https://m2.mtmt.hu/api/publication/33124346 ID - 33124346 AB - 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. LA - English DB - MTMT ER - TY - CHAP AU - Buzetzky, Dóra AU - Kovács, Eszter Mária AU - M. Nagy, Noémi AU - Kónya, József TI - Application of cation-exchanged bentonites in nuclear waste treatment T2 - 6th European Congress on Radiation Protection : Book of Abstracts : Radiation Protection For Everyone PB - Akadémiai Kiadó CY - Budapest PY - 2022 SP - 102 PG - 1 UR - https://m2.mtmt.hu/api/publication/32916988 ID - 32916988 LA - English DB - MTMT ER - TY - CHAP AU - Kovács, Eszter Mária AU - Buzetzky, Dóra AU - Kónya, József AU - M. Nagy, Noémi TI - Preparation of a sorbent suitable for sorption of anionic and cationic radioactive contaminants T2 - 6th European Congress on Radiation Protection : Book of Abstracts : Radiation Protection For Everyone PB - Akadémiai Kiadó CY - Budapest PY - 2022 SP - 103 PG - 1 UR - https://m2.mtmt.hu/api/publication/32866392 ID - 32866392 LA - English DB - MTMT ER - 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 - CHAP AU - Kovács, Eszter Mária AU - Buzetzky, Dóra AU - Kónya, József AU - M. Nagy, Noémi ED - Jószai, I TI - ANIONOS ÉS KATIONOS RADIOAKTÍV SZENNYEZŐK MEGKÖTÉSÉRE ALKALMAS SZORBENS ELŐÁLLÍTÁSA T2 - Őszi Radiokémiai Napok 2021 PB - Magyar Kémikusok Egyesülete (MKE) CY - Budapest SN - 9786156018076 PY - 2021 SP - 42 EP - 46 PG - 5 UR - https://m2.mtmt.hu/api/publication/32500342 ID - 32500342 LA - English DB - MTMT ER -