TY - JOUR AU - Farkas, Luca AU - Monzini, Ilaria AU - Takács, Erzsébet AU - Wojnárovits, László AU - Vörös, Mónika AU - Vágvölgyi, Csaba AU - Janáky, Csaba AU - Alapi, Tünde TI - Comparison of the effectiveness of UV, UV/VUV photolysis, ozonation, and ozone/UV processes for the removal of sulfonamide antibiotics JF - JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING J2 - J ENVIRON CHEM ENG VL - 12 PY - 2024 IS - 1 PG - 13 SN - 2213-3437 DO - 10.1016/j.jece.2023.111845 UR - https://m2.mtmt.hu/api/publication/34482345 ID - 34482345 LA - English DB - MTMT ER - TY - CHAP AU - Alapi, Tünde AU - Farkas, Luca AU - Szirmai, Adrienn TI - A VUV fotonok szerepének vizsgálta trimetoprim vizes oldatának UV/VUV/PDS eljárással való kezelése során; T2 - MKE 4. Nemzeti Konferencia 2023 PB - Magyar Kémikusok Egyesülete (MKE) CY - Eger SN - 9786156018182 PY - 2023 SP - 55 UR - https://m2.mtmt.hu/api/publication/34446737 ID - 34446737 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Chandola, Dinesh AU - Sinkovics, Erik AU - László, Zsuzsanna AU - Alapi, Tünde ED - Tünde, Alapi ED - Berkecz, Róbert ED - Ilisz, István TI - Activation of peroxomonosulfate ion by bichar for the degradation of trimethoprim in aqueous systems T2 - Proceedings of the 29th International Symposium on Analytical and Environmental Problems PB - University of Szeged CY - Szeged SN - 9789633069639 PY - 2023 SP - 124 UR - https://m2.mtmt.hu/api/publication/34446736 ID - 34446736 LA - English DB - MTMT ER - TY - CHAP AU - Farkas, Luca AU - Dragic, Teodóra AU - Alapi, Tünde ED - Tünde, Alapi ED - Berkecz, Róbert ED - Ilisz, István TI - The role of reactive species in the transformation of trimethoprim during UV/LED chlorine process T2 - Proceedings of the 29th International Symposium on Analytical and Environmental Problems PB - University of Szeged CY - Szeged SN - 9789633069639 PY - 2023 SP - 19 UR - https://m2.mtmt.hu/api/publication/34446733 ID - 34446733 LA - English DB - MTMT ER - TY - CONF AU - Alapi, Tünde AU - Farkas, Luca AU - Covic, Anett AU - Orosz, Gyöngyi TI - Perszulfáttal kombinált UV és UV/VUV fotolízis vizsgálata gyógyszer hatóanyagok eltávolítására T2 - Víz- és szennyvízkezelés az iparban (VSZI’23) PY - 2023 SP - 29 UR - https://m2.mtmt.hu/api/publication/34446629 ID - 34446629 LA - Hungarian DB - MTMT ER - TY - CONF AU - Farkas, Luca AU - Covic, Anett AU - Dragic, Teodóra AU - Csaplár, Constance AU - Alapi, Tünde TI - UV/klór eljárások alkalmazása a trimetoprim és az 5-fluorouracil eltávolítására T2 - Víz- és szennyvízkezelés az iparban (VSZI’23) PY - 2023 SP - 34 UR - https://m2.mtmt.hu/api/publication/34444205 ID - 34444205 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Náfrádi, Máté AU - Alapi, Tünde AU - Veres, Bence AU - Farkas, Luca AU - Bencsik, Gábor AU - Janáky, Csaba TI - Comparison of TiO2 and ZnO for Heterogeneous Photocatalytic Activation of the Peroxydisulfate Ion in Trimethoprim Degradation JF - MATERIALS J2 - MATERIALS VL - 16 PY - 2023 IS - 17 PG - 17 SN - 1996-1944 DO - 10.3390/ma16175920 UR - https://m2.mtmt.hu/api/publication/34145897 ID - 34145897 N1 - Department of Inorganic, Organic and Analytical Chemistry, University of Szeged, Dóm Square 7-8, Szeged, H-6720, Hungary Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Square 1, Szeged, H-6720, Hungary Export Date: 7 October 2023 Correspondence Address: Alapi, T.; Department of Inorganic, Dóm Square 7-8, Hungary; email: alapi@chem.u-szeged.hu Funding details: FK132742 Funding details: Magyar Tudományos Akadémia, MTA, ÚNKP-22-3-SZTE-398, ÚNKP-23-1-SZTE Funding details: Nemzeti Kutatási, Fejlesztési és Innovaciós Alap, NKFIA Funding details: National Research, Development and Innovation Office Funding text 1: This work was financed by the National Research, Development, and Innovation Office—NKFI Fund OTKA, project number FK132742. Tünde Alapi, thanks for the support of the János Bolyai Research Scholarship of the Hungarian Academy of Sciences. Luca Farkas (ÚNKP-22-3-SZTE-398) and Bence Veres (ÚNKP-23-1-SZTE) thanks to the New National Excellence Program of the Ministry for Culture and Innovation from the source of the National Research, Development, and Innovation Fund. AB - The persulfate-based advanced oxidation process is a promising method for degrading organic pollutants. Herein, TiO2 and ZnO photocatalysts were combined with the peroxydisulfate ion (PDS) to enhance the efficiency. ZnO was significantly more efficient in PDS conversion and SO4•− generation than TiO2. For ZnO, the PDS increased the transformation rate of the trimethoprim antibiotic from 1.58 × 10−7 M s−1 to 6.83 × 10−7 M s−1. However, in the case of TiO2, the moderated positive effect was manifested mainly in O2-free suspensions. The impact of dissolved O2 and trimethoprim on PDS transformation was also studied. The results reflected that the interaction of O2, PDS, and TRIM with the surface of the photocatalyst and their competition for photogenerated charges must be considered. The effect of radical scavengers confirmed that in addition to SO4•−, •OH plays an essential role even in O2-free suspensions, and the contribution of SO4•− to the transformation is much more significant for ZnO than for TiO2. The negative impact of biologically treated domestic wastewater as a matrix was manifested, most probably because of the radical scavenging capacity of Cl− and HCO3−. Nevertheless, in the case of ZnO, the positive effect of PDS successfully overcompensates that, due to the efficient SO4•− generation. Reusability tests were performed in Milli-Q water and biologically treated domestic wastewater, and only a slight decrease in the reactivity of ZnO photocatalysts was observed. LA - English DB - MTMT ER - TY - GEN AU - Farkas, Luca AU - Teodóra, Dragic AU - Tímea, Molnár AU - Alapi, Tünde TI - Application of LEDs and low pressure mercury vapor lamps in UV/Chlorine process for the removal of trimethoprim antibiotic PY - 2023 UR - https://m2.mtmt.hu/api/publication/34104390 ID - 34104390 LA - English DB - MTMT ER - TY - JOUR AU - Nagy, Eszter AU - Heszlerné Kopniczky, Judit AU - Smausz Kolumbán, Tamás AU - Náfrádi, Máté AU - Alapi, Tünde AU - Bohus, János AU - Pajer, Viktor AU - Révész, Piroska AU - Ambrus, Rita AU - Hopp, Béla TI - A comparative study of femtosecond pulsed laser ablation of meloxicam in distilled water and in air JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 13 PY - 2023 IS - 1 PG - 12 SN - 2045-2322 DO - 10.1038/s41598-023-36922-7 UR - https://m2.mtmt.hu/api/publication/34034385 ID - 34034385 N1 - Department of Optics and Quantum Electronics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, Szeged, 6720, Hungary ELI ALPS, ELI-HU Non-Profit Ltd., Wolfgang Sandner utca 3, Szeged, 6728, Hungary Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös utca 6, Szeged, 6720, Hungary Export Date: 21 September 2023 Correspondence Address: Hopp, B.; Department of Optics and Quantum Electronics, Dóm tér 9, Hungary; email: bhopp@physx.u-szeged.hu AB - The increasing prevalence of water insoluble or poorly soluble drugs calls for the development of new formulation methods. Common approaches include the reduction of particle size and degree of crystallinity. Pulsed laser ablation is a clean technique for producing sub-micrometre sized drug particles and has the potential to induce amorphization. We studied the effect of femtosecond pulsed laser ablation (ELI ALPS THz pump laser system: λ c = 781 nm, τ = 135 fs) on meloxicam in distilled water and in air. The ablated particles were characterized chemically, morphologically and in terms of crystallinity. We demonstrated that femtosecond laser ablation can induce partial amorphization of the particles in addition to a reduction in particle size. In the case of femtosecond pulsed laser ablation in air, the formation of pure meloxicam spheres showed that this technique can produce amorphous meloxicam without the use of excipients, which is a unique result. We also aimed to describe the ablation processes in both investigated media. LA - English DB - MTMT ER - TY - JOUR AU - Alapi, Tünde AU - Veres, Bence AU - Náfrádi, Máté AU - Farkas, Luca AU - Pap, Zsolt AU - Covic, Anett TI - Application of BiOX Photocatalyst to Activate Peroxydisulfate Ion-Investigation of a Combined Process for the Removal of Organic Pollutants from Water JF - CATALYSTS J2 - CATALYSTS VL - 13 PY - 2023 IS - 3 PG - 18 SN - 2073-4344 DO - 10.3390/catal13030513 UR - https://m2.mtmt.hu/api/publication/33692501 ID - 33692501 N1 - Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm Square 7, Szeged, H-6720, Hungary Applied & Environmental Chemistry Department, University of Szeged, Rerrich Béla Square 1, Szeged, H-6720, Hungary Funding details: FK132742 Funding details: Magyar Tudományos Akadémia, MTA, ÚNKP-22-3-SZTE-398 Funding details: Nemzeti Kutatási, Fejlesztési és Innovaciós Alap, NKFIA Funding details: National Research, Development and Innovation Office AB - The persulfate-based advanced oxidation processes employing heterogeneous photocatalysts to generate sulfate radicals (SO4•−) from peroxydisulfate ion (PDS, S2O82−) have been extensively investigated to remove organic pollutants. In this work, BiOX (X = Cl, Br, and I) photocatalysts were investigated to activate PDS and enhance the transformation rate of various organic substances under UV (398 nm) and Vis (400–700 nm) radiation. For BiOCl and BiOBr, in addition to excitability, the light-induced oxygen vacancies are decisive in the activity. Although without organic substances, the BiOI efficiency highly exceeds that of BiOBr and BiOCl for PDS activation (for BiOI, 15–20%, while for BiOBr and BiOCl, only 3–4% of the PDS transformed); each BiOX catalyst showed enhanced activity for 1,4-hydroquinone (HQ) transformation due to the semiquinone radical-initiated PDS activation. For sulfamethoxypyridazine (SMP), the transformation is driven by direct charge transfer, and the effect of PDS was less manifested. BiOI proved efficient for transforming various organic substances even under Vis radiation. The efficiency was enhanced by PDS addition (HQ is wholly transformed within 20 min, and SMP conversion increased from 40% to 90%) without damaging the catalyst; its activity did change over three consecutive cycles. Results related to the well-adsorbed trimethoprim (TRIM) and application of biologically treated domestic wastewater as a matrix highlighted the limiting factors of the method and visible light active photocatalyst, BiOI. LA - English DB - MTMT ER -