@article{MTMT:33571440,
	title = {Synthesis of K+ and Na+ Synthetic Sodalite Phases by Low-Temperature Alkali Fusion of Kaolinite for Effective Remediation of Phosphate Ions: The Impact of the Alkali Ions and Realistic Studies. The Impact of the Alkali Ions and Realistic Studies},
	url = {https://m2.mtmt.hu/api/publication/33571440},
	author = {Bellucci, Stefano and Hemida, Mohamed Hamdy Eid and Kruppiné Fekete, Ilona and Szűcs, Péter and Kovács, Attila and Othman, Sarah I. and Ajarem, Jamaan S. and Allam, Ahmed A. and Abukhadra, Mostafa R.},
	doi = {10.3390/inorganics11010014},
	journal-iso = {INORGANICS},
	journal = {INORGANICS},
	volume = {11},
	unique-id = {33571440},
	abstract = {Two sodalite phases (potassium sodalite (K.SD) and sodium sodalite (Na.SD)) were prepared using alkali fusion of kaolinite followed by a hydrothermal treatment step for 4 h at 90 °C. The synthetic phases were characterized as potential adsorbents for PO43− from the aqueous solutions and real water from the Rákos stream (0.52 mg/L) taking into consideration the impact of the structural alkali ions (K+ and Na+). The synthetic Na.SD phase exhibited enhanced surface area (232.4 m2/g) and ion-exchange capacity (126.4 meq/100 g) as compared to the K.SD phase. Moreover, the Na.SD phase exhibited higher PO43− sequestration capacity (Qmax = 261.6 mg g−1 and Qsat = 175.3 mg g−1) than K.SD phase (Qmax = 201.9 mg g−1 and Qsat = 127.4 mg g−1). The PO43− sequestration processes of both Na.SD and K.SD are spontaneous, homogenous, and exothermic reactions that follow the Langmuir isotherm and pseudo-first-order kinetics. Estimation of the occupied active site density validates the enrichment of the Na.SD phase with high quantities of active sites (Nm = 86.1 mg g−1) as compared to K.SD particles (Nm = 44.4 mg g−1). Moreover, the sequestration and Gaussian energies validate the cooperation of physisorption and weak chemisorption processes including zeolitic ion exchange reactions. Both Na.SD and K.SD exhibit significant selectivity for PO43− in the coexisting of other common anions (Cl−, SO42−, HCO3−, and NO3−) and strong stability properties. Their realistic application results in the complete adsorption of PO43- from Rákos stream water after 20 min (Na. SD) and 60 min (K.SD).},
	year = {2023},
	eissn = {2304-6740},
	orcid-numbers = {Bellucci, Stefano/0000-0003-0326-6368; Abukhadra, Mostafa R./0000-0001-5404-7996}
}

@article{MTMT:33335822,
	title = {A BCR frakcionálási módszer kritikai vizsgálata a BCR-701 tanúsított anyagminta segítségével},
	url = {https://m2.mtmt.hu/api/publication/33335822},
	author = {Kruppiné Fekete, Ilona and Heltai, György and Bezur, László and Horváth, Márk},
	doi = {10.33038/jcegi.3499},
	journal-iso = {J CENT EUR GREEN INNOV},
	journal = {JOURNAL OF CENTRAL EUROPEAN GREEN INNOVATION},
	volume = {10},
	unique-id = {33335822},
	abstract = {Kutatásunkban a potenciálisan toxikus elemszennyezés által okozott környezeti kockázat becslésére alkalmazott, az EU Community Bureau of Reference (BCR) által 1993-ban ajánlott 3+1 lépéses extrakcióval végzett frakcionálás kritikai értékelésével foglalkoztunk, az elemdetektálásra korábban optimalizált multielemes ICP-OES kalibrációt alkalmazva. Munkánk fő célja a HNO3/H2O2 eleggyel végzett mikrohullámú feltárás, továbbá a királyvízzel végzett mikrohullámú feltárás és a királyvízzel visszafolyós hűtős extraktorral végzett feltárás alkalmazhatóságának összehasonlítása a reziduális és pszeudototál frakciók meghatározása során. Vizsgálataink eredményei alapján azt tapasztaltuk, hogy mind a BCR1-4 frakció összegénél, mind az összes kioldásnál a koncentrációk a visszafolyós hűtős királyvizes extrakció esetében a legnagyobbak, a mikrohullámmal támogatott királyvíz és a mikrohullámmal támogatott salétromsav/hidrogén-peroxid kivonás közel azonos hatásfokú. Tehát a salétromsav/hidrogén-peroxid mikrohullámú feltárás továbbra is alkalmazható, s különösen javasolt abban az esetben, ha a királyvíz a mátrix zavaró hatásának felerősödését okozná a mérés során.},
	keywords = {ICP-OES; BCR extraction; BCR extrakció; HNO3/H2O2 mikrohullámú feltárás; királyvizes mikrohullámú feltárás; királyvizes feltárás visszafolyós hűtős extraktorban; HNO3/H2O2 microwave extraction; aqua regia microwave extraction; aqua regia extraction in reflux cooling extractor},
	year = {2022},
	eissn = {2064-3004},
	pages = {55-66}
}

@misc{MTMT:32699468,
	title = {Mezőgazdasági kémia},
	url = {https://m2.mtmt.hu/api/publication/32699468},
	author = {Halász, Gábor Endre and Horváth, Márk and Kruppiné Fekete, Ilona},
	unique-id = {32699468},
	year = {2021}
}

@article{MTMT:30728125,
	title = {Application of flexible multi-elemental ICP-OES detection in fractionation of potentially toxic element content of solid environmental samples by a sequential extraction procedure},
	url = {https://m2.mtmt.hu/api/publication/30728125},
	author = {Heltai, György and Győri, Zoltán and Kruppiné Fekete, Ilona and Halász, Gábor Endre and Kovács, Katalin and Takács, Anita and Khumalo, Lamlile and Horváth, Márk},
	doi = {10.1016/j.microc.2019.104029},
	journal-iso = {MICROCHEM J},
	journal = {MICROCHEMICAL JOURNAL},
	volume = {149},
	unique-id = {30728125},
	issn = {0026-265X},
	year = {2019},
	eissn = {1095-9149},
	orcid-numbers = {Takács, Anita/0009-0005-7300-4349; Horváth, Márk/0000-0001-5551-7718}
}

@article{MTMT:30429874,
	title = {Potenciálisan toxikus elemek mobilitásának jellemzése a talaj/víz/üledék/légkör rendszerben},
	url = {https://m2.mtmt.hu/api/publication/30429874},
	author = {Heltai, György and Horváth, Márk and Kruppiné Fekete, Ilona and Halász, Gábor Endre and Kovács, Katalin and Takács, Anita},
	doi = {10.24100/MKF.2019.02.53},
	journal-iso = {MAGY KÉM FOLY KÉM KÖZL},
	journal = {MAGYAR KÉMIAI FOLYÓIRAT - KÉMIAI KÖZLEMÉNYEK (1997-)},
	volume = {125},
	unique-id = {30429874},
	issn = {1418-9933},
	year = {2019},
	eissn = {1418-8600},
	pages = {53-58}
}

@{MTMT:30385519,
	title = {Determination of potentially toxic element content of medicinal herbs by flexible multielemental spectrochemical methods},
	url = {https://m2.mtmt.hu/api/publication/30385519},
	author = {Kruppiné Fekete, Ilona and Heltai, György and Hunor, Dobos and Horváth, Márk},
	booktitle = {XVI Hungarian - Italian Symposium on Spectrochemistry: technological innovation for water science and sustainable aquatic biodiversity & 61st Hungarian Spectrochemical Conference : programme & book of abstracts},
	unique-id = {30385519},
	year = {2018},
	pages = {70}
}

@{MTMT:30385449,
	title = {Fractionation of potentially toxic elements in sediment/soil/water system by a sequential extraction procedure applying flexible multielemental spectrochemical detection in remediation of contaminated areas},
	url = {https://m2.mtmt.hu/api/publication/30385449},
	author = {Heltai, György and Győri, Zoltán and Kruppiné Fekete, Ilona and Halász, Gábor Endre and Kovács, Katalin and Takács, Anita and Khumalo, Lamlile and Horváth, Márk},
	booktitle = {XVI Hungarian - Italian Symposium on Spectrochemistry: technological innovation for water science and sustainable aquatic biodiversity & 61st Hungarian Spectrochemical Conference : programme & book of abstracts},
	unique-id = {30385449},
	year = {2018},
	pages = {49}
}

@article{MTMT:3411815,
	title = {Review of heavy metal adsorption processes by several organic matters from wastewaters},
	url = {https://m2.mtmt.hu/api/publication/3411815},
	author = {Czikkely, Márton and Neubauer, Éva and Kruppiné Fekete, Ilona and Ymeri, Prespa and Fogarassy, Csaba},
	doi = {10.3390/w10101377},
	journal-iso = {WATER-SUI},
	journal = {WATER},
	volume = {10},
	unique-id = {3411815},
	year = {2018},
	eissn = {2073-4441},
	orcid-numbers = {Czikkely, Márton/0000-0003-3529-6983}
}

@article{MTMT:3385841,
	title = {Improvement of the Sequential Extraction Procedure based on Supercritical CO2 and Subcritical H2O Solvents for the Estimation of the Environmentally Mobile Potentially Toxic Element Fractions of Sediments and Soils},
	url = {https://m2.mtmt.hu/api/publication/3385841},
	author = {Takács, Anita and Kovács, Katalin and Halász, Gábor Endre and Győri, Zoltán and Kruppiné Fekete, Ilona and Heltai, György and Horváth, Márk},
	doi = {10.1556/0088.2018.67.1.3},
	journal-iso = {AGROKÉMIA ÉS TALAJTAN},
	journal = {AGROKÉMIA ÉS TALAJTAN},
	volume = {67},
	unique-id = {3385841},
	issn = {0002-1873},
	year = {2018},
	eissn = {1588-2713},
	pages = {35-48}
}

@article{MTMT:3178003,
	title = {Longterm study of transformation of potentially toxic element pollution in soil/water/sediment system by means of fractionation with sequential extraction procedures},
	url = {https://m2.mtmt.hu/api/publication/3178003},
	author = {Heltai, György and Győri, Zoltán and Kruppiné Fekete, Ilona and Halász, Gábor Endre and Kovács, Katalin and Takács, Anita and Boros, Norbert and Horváth, Márk},
	doi = {10.1016/j.microc.2017.01.026},
	journal-iso = {MICROCHEM J},
	journal = {MICROCHEMICAL JOURNAL},
	volume = {136},
	unique-id = {3178003},
	issn = {0026-265X},
	keywords = {risk assessment; fractionation; BCR sequential extraction; Potentially toxic elements; ICP-OES multielemental detection of pollutants},
	year = {2018},
	eissn = {1095-9149},
	pages = {85-93},
	orcid-numbers = {Takács, Anita/0009-0005-7300-4349; Boros, Norbert/0000-0003-0093-966X; Horváth, Márk/0000-0001-5551-7718}
}