TY - JOUR AU - Kouznetsova, T. AU - Ivanets, A. AU - Prozorovich, V. AU - Shornikova, P. AU - Kapysh, L. AU - Tian, Q. AU - Péter, László AU - Trif, László AU - Almásy, László TI - Design of Nickel-Containing Nanocomposites Based on Ordered Mesoporous Silica: Synthesis, Structure, and Methylene Blue Adsorption JF - GELS (BASEL) J2 - GELS-BASEL VL - 10 PY - 2024 IS - 2 PG - 15 SN - 2310-2861 DO - 10.3390/gels10020133 UR - https://m2.mtmt.hu/api/publication/34751383 ID - 34751383 N1 - Export Date: 29 April 2024 LA - English DB - MTMT ER - TY - JOUR AU - Mara, Józsefné AU - Bodnár, Attila-Ede AU - Trif, László AU - Telegdi, Lászlóné TI - Development of Effective Infrared Reflective Coatings JF - APPLIED SCIENCES-BASEL J2 - APPL SCI-BASEL VL - 13 PY - 2023 IS - 23 PG - 15 SN - 2076-3417 DO - 10.3390/app132312903 UR - https://m2.mtmt.hu/api/publication/34412528 ID - 34412528 AB - The adsorption of surfaces exposed to sunlight results in increased temperatures that can cause physical damage and an increase in energy consumption. Infrared reflective coatings can keep objects cooler and have significant benefits in a wide variety of application by reflecting infrared light and decreasing heat, reducing operating costs, improving energy efficiency in buildings and vehicles, and extending an objects’ lifespan. The main aim of our research was to develop coatings in a RAL7016 Anthracite grey color with minimum heat adsorption in the infrared wavelength range. This was achieved using a combination of infrared transparent and infrared reflective pigment built-in coatings applied on two primers: white and black. Infrared reflectivity or transparency, as well as surface temperature, was investigated as a function of the composition and concentration of pigments. These coatings were characterized by chromatic parameters, by total solar and infrared solar reflectance in the UV, visible, and infrared wavelength range, and by heat reflection. Among the coatings developed, two produced very effective controls for infrared reflectance and transparency, and they could control heat reflectance, resulting in a significant decrease in surface temperature. LA - English DB - MTMT ER - TY - JOUR AU - Nidhoim, Assoumani AU - Masryam, el Marouani AU - Lahcen, el Hamdaoui AU - Trif, László AU - Fatima, Kifani-Sahban AU - Merlin, Simo-Tagne TI - Extraction, characterization and kinetics of thermal decomposition of lignin from date seeds using model-free and fitting approaches JF - CELLULOSE CHEMISTRY AND TECHNOLOGY J2 - CELL CHEM TECHNOL VL - 57 PY - 2023 IS - 7-8 SP - 775 EP - 787 PG - 13 SN - 0576-9787 DO - 10.35812/CelluloseChemTechnol.2023.57.69 UR - https://m2.mtmt.hu/api/publication/34192768 ID - 34192768 LA - English DB - MTMT ER - TY - JOUR AU - Benea, Ioana Cristina AU - Kántor, Izolda AU - Todea, Anamaria AU - Pellis, Alessandro AU - Bîtcan, Ioan AU - Nagy, Lajos AU - Kéki, Sándor AU - Dreavă, Diana Maria AU - Péter, Francisc AU - Feczkó, Tivadar TI - Biocatalytic synthesis of new polyesteramides from ε-caprolactam and hydroxy acids: Structural characterization, biodegradability, and suitability as drug nanocarriers JF - REACTIVE & FUNCTIONAL POLYMERS J2 - REACT FUNCT POLYM VL - 191 PY - 2023 PG - 17 SN - 1381-5148 DO - 10.1016/j.reactfunctpolym.2023.105702 UR - https://m2.mtmt.hu/api/publication/34112909 ID - 34112909 AB - The synthesis of polyesters and polyamides by enzyme-catalyzed processes in vitro was developed in the last decades as a green alternative to obtain biodegradable synthetic polymers with various applications, such as nanoparticle-sized carriers for drug delivery. Polyesteramides were much less studied in this respect, although having the presumable advantage of increased mechanical and thermic resistance brought by the amide moieties. In this work, polyesteramides were synthesized for the first time employing as raw materials epsilon-caprolactam and a hydroxy acid. L-malic, 3-hydroxybutyric, 12-hydroxystearic and 16-hydroxyhexadecanoic acid, respectively, were investigated as co-monomers in solventless or organic medium, using the immobilized lipase Novozyme 435 as catalyst. The short chain hydroxy acids holding secondary hydroxyl groups yielded oligomers with average degree of polymerization no higher than 4, while in the case of the long-chain 12-hydroxystearic acid this value increased to 7. The best results were achieved by using 16-hydroxyhexadecanoic acid in 2:1 M excess at 80. C, yielding a product with 75% copolymer content and average molecular weight higher than 3000 Da. The emulsion-solvent evaporation method allowed the efficient production of nanoparticles based on this copolymer, with sizes around 230 nm, used for the encapsulation of a model bioactive compound, the anticancer drug sorafenib. Production yields of >70% and encapsulation efficiencies of around 60% are very promising for further development of this approach. LA - English DB - MTMT ER - TY - JOUR AU - Martiz Chalen, Jose Alejandro AU - Károly, Zoltán AU - Nagyné Bereczki, Laura AU - Trif, László AU - Farkas, Attila AU - Kállay-Menyhárd, Alfréd AU - Kótai, László TI - Carbonization of Zr-loaded thiourea-functionalized styrene-divinylbenzene copolymers: An easy was to synthesize Nano-ZrO2@C and Nano-(ZrC, ZrO2)@C composites JF - JOURNAL OF COMPOSITES SCIENCE J2 - J COMPOSITES SCI VL - 7 PY - 2023 PG - 15 SN - 2504-477X DO - 10.3390/jcs7080306 UR - https://m2.mtmt.hu/api/publication/34077482 ID - 34077482 N1 - Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok krt. 2, Budapest, H-1117, Hungary Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Műegyetem rakpart 3, Budapest, H-1111, Hungary Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rakpart 3, Budapest, H-1111, Hungary Deuton-X Ltd, Selmeci u. 89, Érd, H-2030, Hungary Export Date: 4 September 2023 Correspondence Address: Kótai, L.; Institute of Materials and Environmental Chemistry, Magyar Tudósok krt. 2, Hungary; email: kotai.laszlo@ttk.hu LA - English DB - MTMT ER - TY - JOUR AU - Zsigmond, Andreea Rebeka AU - Fejér, Ingrid R. AU - Kántor, Izolda AU - May, Zoltán AU - Urák, István TI - Influence of the urban environment on four mushroom species in the light of their elemental composition JF - CHEMOSPHERE J2 - CHEMOSPHERE VL - 335 PY - 2023 PG - 9 SN - 0045-6535 DO - 10.1016/j.chemosphere.2023.139052 UR - https://m2.mtmt.hu/api/publication/33948309 ID - 33948309 LA - English DB - MTMT ER - TY - JOUR AU - Marouani, Maryam El AU - El Hamdaoui, Lahcen AU - Boulhaoua, Mohammed AU - Pienaar, Andrew AU - Trif, László AU - Costa, Guy AU - Simo‐Tagne, Merlin AU - Kifani‐Sahban, Fatima TI - Non‐Isothermal Kinetics of Phoenix Dactylifera L . Date Palm Seeds Pyrolysis Using Model Fitting and Iso‐Conversional Model Free Methods JF - CHEMISTRYSELECT J2 - CHEMISTRYSELECT VL - 8 PY - 2023 IS - 11 PG - 14 SN - 2365-6549 DO - 10.1002/slct.202203946 UR - https://m2.mtmt.hu/api/publication/33703098 ID - 33703098 LA - English DB - MTMT ER - TY - JOUR AU - Németh, Bence László AU - Ujhidy, Aurél AU - Tóth, Judit AU - Ferencz, Mónika AU - Kurdi, Róbert AU - Gyenis, János AU - Feczkó, Tivadar TI - Power consumption of model houses with and without PCM plaster lining using different heating methods JF - ENERGY AND BUILDINGS J2 - ENERG BUILDINGS VL - 284 PY - 2023 PG - 16 SN - 0378-7788 DO - 10.1016/j.enbuild.2023.112845 UR - https://m2.mtmt.hu/api/publication/33628997 ID - 33628997 N1 - Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., Budapest, H-1117, Hungary Faculty of Engineering, University of Pannonia, Egyetem u. 10, Veszprém, H-8200, Hungary Export Date: 23 March 2023 CODEN: ENEBD Correspondence Address: Feczkó, T.; University of Pannonia, Egyetem u. 10, Hungary; email: feczko.tivadar@ttk.hu LA - English DB - MTMT ER - TY - JOUR AU - Béres, Kende Attila AU - Szilágyi, Fanni AU - Homonnay, Zoltán AU - Dürvanger, Zsolt AU - Nagyné Bereczki, Laura AU - Trif, László AU - Petruševski, Vladimir M. AU - Farkas, Attila AU - Bayat, Niloofar AU - Kótai, László TI - Structural, Spectroscopic, and Thermal Decomposition Features of [Carbonatotetraamminecobalt(III)] Iodide—Insight into the Simultaneous Solid-Phase Quasi-Intramolecular Redox Reactions JF - INORGANICS J2 - INORGANICS VL - 11 PY - 2023 IS - 2 PG - 21 SN - 2304-6740 DO - 10.3390/inorganics11020068 UR - https://m2.mtmt.hu/api/publication/33610854 ID - 33610854 N1 - Correspondence Address: Béres, K.A.; Research Centre for Natural Sciences, Magyar Tudósok krt. 2, Hungary; email: beres.kende.attila@ttk.hu Correspondence Address: Kótai, L.; Research Centre for Natural Sciences, Magyar Tudósok krt. 2, Hungary; email: kotai.laszlo@ttk.hu AB - [κ2-O,O′-Carbonatotetraamminecobalt(III)] iodide, or [Co(NH3)4CO3]I, named in this paper as compound 1, was prepared and characterized comprehensively with spectroscopic (IR, Raman and UV) and single-crystal X-ray diffraction methods. Compound 1 was orthorhombic, and isomorphous with the analogous bromide. The four ammonia ligands and the carbonate anion were coordinated to the central cobalt cation in a distorted octahedral geometry. The carbonate ion formed a four-membered symmetric planar chelate ring. The complex cations were bound to each other by N-H···O hydrogen bonds and formed zigzag sheets via an extended 2D hydrogen bond network. The complex cations and iodide ions were arranged into ion pairs and each cation bound its iodide pair through three hydrogen bonds. The thermal decomposition started with the oxidation of the iodide ion by CoIII in the solid phase resulting in [Co(NH3)4CO3] and I2. This intermediate CoII-complex in situ decomposed into Co3O4 and C-N bond containing intermediates. In inert atmosphere, CO or C-N bond containing compounds, and also, due to the in situ decomposition of CoCO3 intermediate, Co3O4 was formed. The quasi-intramolecular solid-phase redox reaction of [Co(NH3)4CO3] might have resulted in the formation of C-N bond containing compounds with substoichiometric release of ammonia and CO2 from compound 1. The C-N bond containing intermediates reduced Co3O4 into CoO and Co, whereas in oxygen-containing atmosphere, the end-product was Co3O4, even at 200 °C, and the endothermic ligand loss reaction coincided with the consecutive exothermic oxidation processes. LA - English DB - MTMT ER - TY - JOUR AU - Lázár, Anett AU - Molnár, Zsombor AU - Demény, Attila AU - Kótai, László AU - Trif, László AU - Béres, Kende Attila AU - Bódis, Eszter AU - Bortel, Gábor AU - Aradi, László Előd AU - Karlik, Máté AU - Szabó, Máté Zoltán AU - Pekker, Áron AU - Németh, Gergely AU - Kamarás, Katalin AU - Garvie, L.A.J. AU - Németh, Péter TI - Insights into the amorphous calcium carbonate (ACC) → ikaite → calcite transformations JF - CRYSTENGCOMM J2 - CRYSTENGCOMM VL - 25 PY - 2023 IS - 3 SP - 738 EP - 750 PG - 13 SN - 1466-8033 DO - 10.1039/d2ce01444k UR - https://m2.mtmt.hu/api/publication/33606758 ID - 33606758 LA - English DB - MTMT ER -