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Deymeh F, Ahmadpour A, Allahresani A, Arami-Niya A. Collaborative adsorption and photocatalytic degradation of high concentration pharmaceutical pollutants in water using a novel dendritic fibrous nano-silica modified with chitosan and UiO-66. Int J Biol Macromol 2024; 275:133534. [PMID: 38950805 DOI: 10.1016/j.ijbiomac.2024.133534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 05/25/2024] [Accepted: 06/27/2024] [Indexed: 07/03/2024]
Abstract
This study presents a novel hybrid mesoporous material for degrading drug pollutants in water. The hybrid materials, derived from UiO-66 metal-organic framework and chitosan, coated on nano-silica, showed excellent drug adsorption through hydrogen-bonding interactions and efficient photodegradation of antibiotics. The hybrid material's enhanced conductivity and reduced band gap significantly improved pollution reduction by minimising electron-hole recombination. This allows for more efficient charge transport and better light absorption, boosting the material's ability to break down pollutants. Structural and morphological analyses were conducted using various techniques, including scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, Brunauer-Emmett-Teller analysis, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Optimising the adsorption-photodegradation process involved investigating pH, catalyst dose, and radiation time. Non-linear optimisation revealed an efficiency exceeding 85 % for 400 mg/L tetracycline and doxycycline, the model antibiotics. The optimal parameters for maximal elimination were determined as pH = 4.3, hybrid mesosphere dose = 4.0 mg/mL, and radiation time = 10 min. Kinetic studies favored pseudo-second-order diffusion models over pseudo-first-order models. The hybrid mesosphere showed sustained efficiency after three cycles and performed well in real aqueous samples, removing over 80 % of each antibiotic. This study demonstrates the potential of the hybrid mesoporous material for removing pharmaceutical pollutants in water systems.
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Affiliation(s)
- Fatemeh Deymeh
- Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box 91779-48944, Mashhad, Iran; Industrial Catalysts, Adsorbents and Environment Lab., Oil and Gas Research Institute, Ferdowsi University of Mashhad, P.O. Box 91779-48974, Mashhad, Iran
| | - Ali Ahmadpour
- Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box 91779-48944, Mashhad, Iran; Industrial Catalysts, Adsorbents and Environment Lab., Oil and Gas Research Institute, Ferdowsi University of Mashhad, P.O. Box 91779-48974, Mashhad, Iran.
| | - Ali Allahresani
- Department of Chemistry, College of Sciences, University of Birjand, P.O. Box 97175-615, Birjand, Iran
| | - Arash Arami-Niya
- Discipline of Chemical Engineering, Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia.
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Motamedi M, Yerushalmi L, Haghighat F, Chen Z, Zhuang Y. Comparison of photocatalysis and photolysis of 2,2,4,4-tetrabromodiphenyl ether (BDE-47): Operational parameters, kinetic studies, and data validation using three modern machine learning models. CHEMOSPHERE 2023; 326:138363. [PMID: 36907486 DOI: 10.1016/j.chemosphere.2023.138363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/17/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are halogenated organic compounds that are among the major pollutants of water, and there is an urgent need for their removal. This work compared the application of two techniques, i.e., photocatalytic reaction (PCR) and photolysis (PL), for 2,2,4,4- tetrabromodiphenyl ether (BDE-47) degradation. Although a limited degradation of BDE-47 was observed by photolysis (LED/N2), photocatalytic oxidation by using TiO2/LED/N2 proved to be effective in the degradation of BDE-47. The use of a photocatalyst enhanced the extent of BDE-47 degradation by around 10% at optimum conditions in anaerobic systems. Experimental results were systematically validated through modeling with three new and powerful Machine Learning (ML) approaches, including Gradient Boosted Decision Tree (GBDT), Artificial Neural Network (ANN), and Symbolic Regression (SBR). Four statistical criteria (Coefficient of Determination (R2), Root Mean Square Error (RMSE), Average Relative Error (ARER), and Absolute Error (ABER)) were calculated for model validation. Among the applied models, the developed GBDT was the desirable model for predicting the remaining concentration (Ce) of BDE-47 for both processes. Total Organic Carbon (TOC) and Chemical Oxygen Demand (COD) results confirmed that BDE-47 mineralization required additional time than its degradation in both PCR and PL systems. The kinetic study demonstrated that BDE-47 degradation for both processes followed the pseudo-first-order form of the Langmuir-Hinshelwood (L-H) model. More importantly, the calculated electrical energy consumption of photolysis was shown to be ten percent higher than that for photocatalysis, possibly due to the higher irradiation time required in direct photolysis, which in turn increases electricity consumption. This study is useful in proposing a feasible and promising treatment process for the degradation of BDE-47.
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Affiliation(s)
- Mahsa Motamedi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Laleh Yerushalmi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Fariborz Haghighat
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Zhi Chen
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada.
| | - Yanbin Zhuang
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
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Jovanoski Kostić A, Kanas N, Rajić V, Sharma A, Bhattacharya SS, Armaković S, Savanović MM, Armaković SJ. Evaluation of Photocatalytic Performance of Nano-Sized Sr 0.9La 0.1TiO 3 and Sr 0.25Ca 0.25Na 0.25Pr 0.25TiO 3 Ceramic Powders for Water Purification. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4193. [PMID: 36500815 PMCID: PMC9736647 DOI: 10.3390/nano12234193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 06/17/2023]
Abstract
Water pollution is a significant issue nowadays. Among the many different technologies for water purification, photocatalysis is a very promising and environment-friendly approach. In this study, the photocatalytic activity of Sr0.9La0.1TiO3 (SLTO) and Sr0.25Ca0.25Na0.25Pr0.25TiO3 (SCNPTO) nano-sized powders were evaluated by degradation of pindolol in water. Pindolol is almost entirely insoluble in water due to its lipophilic properties. The synthesis of the SCNPTO was performed using the reverse co-precipitation method using nitrate precursors, whereas the SLTO was produced by spray pyrolysis (CerPoTech, Trondheim Norway). The phase purity of the synthesized powders was validated by XRD, while HR-SEM revealed particle sizes between 50 and 70 nm. The obtained SLTO and SCNPTO powders were agglomerated but had relatively similar specific surface areas of about 27.6 m2 g-1 and 34.0 m2 g-1, respectively. The energy band gaps of the SCNPTO and SLTO were calculated (DFT) to be about 2.69 eV and 3.05 eV, respectively. The photocatalytic performances of the materials were examined by removing the pindolol from the polluted water under simulated solar irradiation (SSI), UV-LED irradiation, and UV irradiation. Ultra-fast liquid chromatography was used to monitor the kinetics of the pindolol degradation with diode array detection (UFLC-DAD). The SLTO removed 68%, 94%, and 100% of the pindolol after 240 min under SSI, UV-LED, and UV irradiation, respectively. A similar but slightly lower photocatalytic activity was obtained with the SCNPTO under identical conditions, resulting in 65%, 84%, and 93% degradation of the pindolol, respectively. Chemical oxygen demand measurements showed high mineralization of the investigated mixtures under UV-LED and UV irradiation.
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Affiliation(s)
- Aleksandra Jovanoski Kostić
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, 21000 Novi Sad, Serbia
| | - Nikola Kanas
- University of Novi Sad, Institute BioSense, 21000 Novi Sad, Serbia
| | - Vladimir Rajić
- University of Belgrade, INS Vinča, Department of Atomic Physics, 11000 Belgrade, Serbia
| | - Annu Sharma
- Nanofunctional Materials Technology Centre, Department of MME, IIT Madras, Chennai 600001, India
| | | | - Stevan Armaković
- University of Novi Sad, Faculty of Sciences, Department of Physics, 21000 Novi Sad, Serbia
- Association for the International Development of Academic and Scientific Collaboration (AIDASCO), 21000 Novi Sad, Serbia
| | - Maria M. Savanović
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, 21000 Novi Sad, Serbia
- Association for the International Development of Academic and Scientific Collaboration (AIDASCO), 21000 Novi Sad, Serbia
| | - Sanja J. Armaković
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, 21000 Novi Sad, Serbia
- Association for the International Development of Academic and Scientific Collaboration (AIDASCO), 21000 Novi Sad, Serbia
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Naghizadeh M, Aghapour AA, khorsandi H. The degradation and mineralization of hydrochlorothiazide (HCTZ) using catalytic ozonation process (COP) with Al2O3/granular activated carbon composite. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02226-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abramović BF, Uzelac MM, Armaković SJ, Gašić U, Četojević-Simin DD, Armaković S. Experimental and computational study of hydrolysis and photolysis of antibiotic ceftriaxone: Degradation kinetics, pathways, and toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 768:144991. [PMID: 33736306 DOI: 10.1016/j.scitotenv.2021.144991] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/22/2020] [Accepted: 01/01/2021] [Indexed: 06/12/2023]
Abstract
In this work, we have experimentally and computationally investigated the process of hydrolysis and photolysis of cephalosporin antibiotics with ceftriaxone (CEF) as a model compound. The CEF hydrolysis was investigated in ultrapure and natural water, at 25 ± 1 °C and 4 ± 1 °C in the dark. It was found that CEF after 100 and 900 days at 25 ± 1°C and 4 ± 1 °C, respectively practically completely removed from ultrapure water. The CEF hydrolysis in natural water was five and three times slower at 25 ± 1 °C and 4 ± 1 °C, respectively than in ultrapure water. Further, the efficiency of direct photolysis (solar/UVA-B) and solar/H2O2 treatment of CEF was investigated. Under UVA-B radiation 95.6% of CEF was removed after 60 min, while for the same time of solar radiation degradation was practically not observed (only 3.2%). Also, the effects of different concentrations of H2O2 (0-150 mM) in the presence/absence of solar radiation were studied. The most efficient solar/H2O2 treatment was in the presence of 90 mM H2O2, whereby 66.8% of CEF was removed after 60 min (41.8% by indirect photolysis, 21.8% by H2O2-oxidation, and 3.2% by direct photolysis). Radial distribution functions (RDF) provided information about the distribution of water around the CEF molecule. Aside from the RDF, investigation of intramolecular noncovalent interactions and calculations of bond dissociation energies for hydrogen abstraction enabled understanding of degradation mechanism of CEF. In order to investigate sensitivity of CEF towards the radical attacks, the concept of Fukui functions was used. The structures of intermediates and degradation pathways were suggested by UHPLC-LTQ OrbiTrap MS and density functional theory calculations. Toxicity assessments showed that intermediates formed during hydrolysis exerted only mild cell growth effects in selected cell lines.
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Affiliation(s)
- Biljana F Abramović
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia.
| | - Maria M Uzelac
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Sanja J Armaković
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Uroš Gašić
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | | | - Stevan Armaković
- University of Novi Sad Faculty of Sciences, Department of Physics, Trg Dositeja Obradovića 4, 21000 Novi Sad, Serbia
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Kosman J, Monteiro JFHL, Lenart VM, Weinert PL, Tiburtius ERL. UV-Vis LED-assisted photo-Fenton process for mineralization of losartan and hydrochlorothiazide: optimization using desirability function. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:24046-24056. [PMID: 33420690 DOI: 10.1007/s11356-020-12011-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
This study presents the results obtained for the optimization of the mineralization of losartan (LOS) and hydrochlorothiazide (HCTZ) using the photo-Fenton process with a UV-Vis LED. Experimental design optimization employing a Doehlert matrix and a global desirability function enabled simultaneous evaluation of multiple responses, with factor fitting providing the best conditions that maximized the mineralization efficiency: Fe2+ at 10 mg L-1 and H2O2 at 100 mg L-1. High rates of mineralization of LOS and HCTZ were obtained, with dissolved organic carbon (DOC); removal of almost 75% after 90 min was observed for both pharmaceuticals. The kinetic model showed that the mineralization followed two regimes in the first minutes, with a fast progression followed by slower activity. The energy consumption calculated for mineralization of LOS and HCTZ at a concentration of 20 mg L-1 using the UV-Vis LED-assisted photo-Fenton process, at 60 min, was 130 kWh m-3. The desirability function provides a useful tool for finding optimal experimental conditions for the treatment of effluents with different characteristics. The UV-Vis LED was shown to be a good light source in the photo-Fenton process.
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Affiliation(s)
- Joslaine Kosman
- Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, PR, 84030-900, Brazil
| | | | - Vinícius Mariani Lenart
- Universidade Tecnológica Federal do Paraná, Av. Monteiro Lobato s/n, Km 04, Ponta Grossa, PR, 84016-210, Brazil
| | - Patrícia Los Weinert
- Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, PR, 84030-900, Brazil
| | - Elaine Regina Lopes Tiburtius
- Universidade Estadual de Ponta Grossa, Av. General Carlos Cavalcanti, 4748, Uvaranas, Ponta Grossa, PR, 84030-900, Brazil.
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7
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Sonochemical synthesis and characterization of silver tungstate nanostructures as visible-light-driven photocatalyst for waste-water treatment. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117062] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Cocrystals of hydrochlorothiazide with picolinamide, tetramethylpyrazine and piperazine: quantum mechanical studies, docking and modelling of the photovoltaic efficiency for DSSC. J Mol Model 2020; 26:256. [PMID: 32885337 DOI: 10.1007/s00894-020-04528-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/31/2020] [Indexed: 01/06/2023]
Abstract
Cocrystals are of immense applications in crystal engineering and pharmaceutical chemistry. Hydrochlorothiazide is found to form cocrystals with picolinamide (H1), tetramethylpyrazine (H2) and piperazine (H3). It was characterized using IR spectra, and quantum mechanical calculations for geometry and other properties. Frontier orbital energies are used to predict the energy properties and model the possible charge transfer between the constituents of the cocrystal. The frontier molecular orbital analysis indicates chemical reactivity and bioactivity of the cocrystals. The MEP surface reveals the various reactive surfaces in the cocrystal system, which is very important in deciding various biological activities. The UV-Vis spectra show the possible electronic transitions of the molecules. Simulated electronic spectra using TDDFT method with CAM-B3LYP functional were used to investigate the suitability of the cocrystals to be used in DSSC. Moreover, the molecular docking analysis proves that the cocrystals can act as potential inhibitors and paves the way for developing effective drugs.
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Armaković SJ, Armaković S, Šibul F, Četojević-Simin DD, Tubić A, Abramović BF. Kinetics, mechanism and toxicity of intermediates of solar light induced photocatalytic degradation of pindolol: Experimental and computational modeling approach. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122490. [PMID: 32197201 DOI: 10.1016/j.jhazmat.2020.122490] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/26/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
In this work, we have investigated the stability of pindolol (PIN), a non-selective β1-blocker detected in the river and wastewater of hospitals, in water solution under solar irradiation. Further, detailed insights into the stability of PIN were obtained by the density functional theory (DFT) calculations and molecular dynamics simulations. The kinetics of PIN photocatalytic degradation and mineralization has been studied using four commercial photocatalysts ZnO and TiO2 (P25, Hombikat, and Wackherr). It was found that the major role in degradation of PIN play the reactive hydroxyl radicals. The structures of degradation intermediates were suggested by LC-ESI-MS/MS and DFT calculations. Also, DFT calculations were used to refine molecular structures of intermediates and obtain their geometries. Toxicity of PIN and its mixtures formed during photocatalytic degradation were investigated using mammalian cell lines (H-4-II-E, HT-29, and MRC-5). The H-4-II-E cell line was the most sensitive to PIN and its photodegradation mixtures. The computational results were combined with the experimental data on the amounts of degradation intermediates for determination of the intermediates that were principally responsible for the toxicity. Intermediate with two hydroxyl groups, positioned on indole ring in meta and para positions, was proposed as the one with the highest contribution to toxicity.
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Affiliation(s)
- Sanja J Armaković
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Stevan Armaković
- University of Novi Sad Faculty of Sciences, Department of Physics, Trg Dositeja Obradovića 4, 21000 Novi Sad, Serbia
| | - Filip Šibul
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Dragana D Četojević-Simin
- University of Novi Sad Faculty of Medicine, Oncology Institute of Vojvodina, Dr Goldmana 4, 21204 Sremska Kamenica, Serbia
| | - Aleksandra Tubić
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Biljana F Abramović
- University of Novi Sad Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg D. Obradovića 3, 21000 Novi Sad, Serbia.
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Efficiency evaluation of the photocatalytic degradation of telmisartan anti-hypertensive drug with Fenton, photo-Fenton and recyclable TiO2 heterogeneous catalyst. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01806-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tomić BT, Abraham CS, Pelemiš S, Armaković SJ, Armaković S. Fullerene C 24 as a potential carrier of ephedrine drug - a computational study of interactions and influence of temperature. Phys Chem Chem Phys 2019; 21:23329-23337. [PMID: 31616869 DOI: 10.1039/c9cp04534a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Interactions between fullerene C24 and a frequently used supplement for sport activities, ephedrine (EPH), have been studied in detail by a combination of density functional theory (DFT), time dependent DFT (TD-DFT) calculations, the symmetry-adapted perturbation theory (SAPT) approach and molecular dynamics (MD) simulations. Information about interaction energies and non-covalent interactions formed between C24 and EPH have been obtained by DFT calculations. TD-DFT calculations have been used in order to obtain UV/vis spectra and to check whether the presence of the EPH molecule produces significant changes in the spectrum. The SAPT approach has been employed in order to decompose the interaction energy into components and therefore to better understand the physical origins of interaction between C24 and EPH. Last, but not least, MD simulations have been used in order to track the influence of temperature on the interactions between C24 and EPH.
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Affiliation(s)
- Bogdan T Tomić
- Educons University, Faculty of Sport and Tourism - TIMS, Radnička 30a, 21000 Novi Sad, Serbia
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Saravanakumar K, Muthupoongodi S, Muthuraj V. A novel n-CeO2/n-CdO heterojunction nanocomposite for enhanced photodegradation of organic pollutants under visible light irradiation. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2018.12.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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13
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Cui S, Zhang X, Liu J, Zhou L, Shang Y, Zhang C, Liu W, Zhuang S. Natural sunlight-driven aquatic toxicity enhancement of 2,6-di-tert-butylphenol toward Photobacterium phosphoreum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 251:66-71. [PMID: 31071634 DOI: 10.1016/j.envpol.2019.04.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/03/2019] [Accepted: 04/26/2019] [Indexed: 06/09/2023]
Abstract
The tert-butylphenols (TBPs) are one group of alkylated phenolic compounds with wide applications in UV absorbers and antioxidants. They are becoming contaminants of emerging concern with residues frequently detected in natural surface water or drinking water. The direct sunlight may photolyze TBPs in waters and affect their aquatic toxicities; however, such data are very limited. In the present study, we investigate the photodegradation of 2,6-DTBP by direct sunlight in water and compare the aquatic toxicities of 2,6-DTBP with that of its product toward Photobacterium phosphoreum. 2,6-DTBP is photodegraded by 71.31 ± 2.64% under simulated sunlight following a pseudo-first-order kinetics with rate constant (k) of 0.061 h-1. Density functional theory simulations at M06-2X/def2-SVP level reveal that the photodegradation occurred sequentially through oxidation, photo-isomerization and hydrogenation. The degradation product 2,5-DTBP is toxic to P. phosphoreum (EC50 3.389 × 10-5 mol/L) whereas 2,6-DTBP is not harmful (EC50 3.917 × 10-3 mol/L) as designated by the European Union Standard, indicating the enhanced toxicities driven by the direct sunlight photodegradation. We demonstrate the enhanced toxicities of 2,6-DTBP by natural sunlight, suggesting that negligence of photodegradation of TBPs-related contaminants will underestimate the comprehensive risk of these emerging contaminant in natural waters.
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Affiliation(s)
- Shixuan Cui
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaofang Zhang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jinsong Liu
- Zhejiang Province Environmental Monitoring Center, Hangzhou, 310005, China
| | - Lihong Zhou
- Institute of Environment, Chengdu University of Technology, Chengdu, 610059, China
| | - Yukun Shang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chunlong Zhang
- Department of Environmental Sciences, University of Houston-Clear Lake, 2700 Bay Area Boulevard, Houston, TX, 77058, USA
| | - Weiping Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shulin Zhuang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Murthy PK, Valverde C, Suneetha V, Armaković S, Armaković SJ, Rani NU, Naidu NV. An analysis of structural and spectroscopic signatures, the reactivity study of synthetized 4,6-dichloro-2-(methylsulfonyl)pyrimidine: A potential third-order nonlinear optical material. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Tahir MB, Sagir M, Shahzad K. Removal of acetylsalicylate and methyl-theobromine from aqueous environment using nano-photocatalyst WO 3-TiO 2 @g-C 3N 4 composite. JOURNAL OF HAZARDOUS MATERIALS 2019; 363:205-213. [PMID: 30308359 DOI: 10.1016/j.jhazmat.2018.09.055] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/20/2018] [Accepted: 09/21/2018] [Indexed: 05/14/2023]
Abstract
Highly efficient, visible light-driven and a novel ternary hybrid photocatalyst WO3-TiO2-g-C3N4 with robust stabilities and versatile properties has been synthesized through facile hydrothermal method. This study considers the photo-degradation of aspirin (acetylsalicylate) and caffeine (methyl-theobromine) via photocatalysts (WO3, WO3/TiO2, and WO3/TiO2/g-C3N4 (WTCN) composite) under visible-light irradiation. The SEM and TEM images show the formation of WO3 nanoparticles with orthorhombic structure and average particle size of 65 nm. The photocatalyst WTCN composite possesses higher-catalytic activity when compared to that of WO3 and WO3/TiO2 for degradation of aspirin and caffeine. The incorporation of g-C3N4 in WO3/TiO2 composite exhibited significant influence on the photocatalytic performance for both pollutants. Excellent photocatalytic performance of WTCN composite was observed owing to hydroxyl radical (OH) and superoxide radical (O2-) as main active species. The enhanced photocatalytic activity of WTCN composite can be attributed to following three reasons: (1) extended visible-light absorption; (2) extended surface area; (3) efficient charge-separation due to synergistic effects between g- and WO3/TiO2 composite. The removal efficiency of aspirin and caffeine (Methyl theobromine) could be achieved as much as 98% and 97% for acetylsalicylate and methyl-theobromine using WTCN composite material, respectively. This study could provide new insights into the synthesis of novel WO3-based materials for environmental and energy applications.
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Affiliation(s)
- M B Tahir
- Department of Physics, Faculty of Sciences, University of Gujrat, Gujrat, 50700, Pakistan.
| | - M Sagir
- Department of Chemical Engineering, Faculty of Engineering, University of Gujrat, Gujrat, 50700, Pakistan
| | - K Shahzad
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
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Muthukkumar M, Bhuvaneswari T, Venkatesh G, Kamal C, Vennila P, Armaković S, Armaković SJ, Sheena Mary Y, Yohannan Panicker C. Synthesis, characterization and computational studies of semicarbazide derivative. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.123] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yabalak E, Görmez Ö, Nural Y. Mineralization of Hydrochlorothiazide using Hydrogen Peroxide in Subcritical Water. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2018. [DOI: 10.18596/jotcsa.449979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Sureshkumar B, Mary Y, Resmi K, Suma S, Armaković S, Armaković SJ, Van Alsenoy C, Narayana B, Sobhana D. Spectroscopic characterization of hydroxyquinoline derivatives with bromine and iodine atoms and theoretical investigation by DFT calculations, MD simulations and molecular docking studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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