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Nair N, Gandhi V, Shukla A, Ghotekar S, Nguyen VH, Varma K. Mechanisms in the photocatalytic breakdown of persistent pharmaceutical and pesticide molecules over TiO 2-based photocatalysts: A review. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:413003. [PMID: 38968934 DOI: 10.1088/1361-648x/ad5fd6] [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: 12/23/2023] [Accepted: 07/05/2024] [Indexed: 07/07/2024]
Abstract
Titanium dioxide (TiO2) based photocatalysts have been widely used as a photocatalyst for the degradation of various persistent organic compounds in water and air. The degradation mechanism involves the generation of highly reactive oxygen species, such as hydroxyl radicals, which react with organic compounds to break down their chemical bonds and ultimately mineralize them into harmless products. In the case of pharmaceutical and pesticide molecules, TiO2and modified TiO2photocatalysis effectively degrade a wide range of compounds, including antibiotics, pesticides, and herbicides. The main downside is the production of dangerous intermediate products, which are not frequently addressed in the literature that is currently available. The degradation rate of these compounds by TiO2photocatalysis depends on factors such as the chemical structure of the compounds, the concentration of the TiO2catalyst, the intensity, the light source, and the presence of other organic or inorganic species in the solution. The comprehension of the degradation mechanism is explored to gain insights into the intermediates. Additionally, the utilization of response surface methodology is addressed, offering a potential avenue for enhancing the scalability of the reactors. Overall, TiO2photocatalysis is a promising technology for the treatment of pharmaceutical and agrochemical wastewater, but further research is needed to optimize the process conditions and to understand the fate and toxicity of the degradation products.
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Affiliation(s)
- Niraj Nair
- Department of Chemical Engineering, Dharmsinh Desai University, College Road, Nadiad 387 001 Gujarat, India
| | - Vimal Gandhi
- Department of Chemical Engineering, Dharmsinh Desai University, College Road, Nadiad 387 001 Gujarat, India
| | - Atindra Shukla
- Department of Chemical Engineering, Dharmsinh Desai University, College Road, Nadiad 387 001 Gujarat, India
| | - Suresh Ghotekar
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103 Tamil Nadu, India
| | - Van-Huy Nguyen
- Department of Environmental Engineering & Innovation and Development Centre of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan
| | - Kiran Varma
- Department of Petrochemical & Chemical Engineering, Institute of Technology, FoET, Ganpat University, Mehsana 384012, Gujarat, India
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Liu Q, Xu M, Meng Y, Chen S, Yang S. Magnetic CoFe 1.95Y 0.05O 4-Decorated Ag 3PO 4 as Superior and Recyclable Photocatalyst for Dye Degradation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4659. [PMID: 37444973 DOI: 10.3390/ma16134659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023]
Abstract
The Ag3PO4/CoFe1.95Y0.05O4 nanocomposite with magnetic properties was simply synthesized by the hydrothermal method. The structure and morphology of the prepared material were characterized, and its photocatalytic activity for degradation of the methylene blue and rhodamine B dyes was also tested. It was revealed that the Ag3PO4 in the nanocomposite exhibited a smaller size and higher efficiency in degrading dyes than the individually synthesized Ag3PO4 when exposed to light. Furthermore, the magnetic properties of CoFe1.95Y0.05O4 enabled the nanocomposite to possess magnetic separation capabilities. The stable crystal structure and effective degradation ability of the nanocomposite were demonstrated through cyclic degradation experiments. It was shown that Ag3PO4/CoFe1.95Y0.05O4-0.2 could deliver the highest activity and stability in degrading the dyes, and 98% of the dyes could be reduced within 30 min. Additionally, the photocatalytic enhancement mechanism and cyclic degradation stability of the magnetic nanocomposites were also proposed.
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Affiliation(s)
- Qingwang Liu
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Mai Xu
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Ying Meng
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Shikun Chen
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Shiliu Yang
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
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Deng Z, Huang Z, Liu J, Huang Y, Lu P. Efficient Activation of Peroxymonosulfate by V-Doped Graphitic Carbon Nitride for Organic Contamination Remediation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8936. [PMID: 36556741 PMCID: PMC9785673 DOI: 10.3390/ma15248936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Advanced oxidation processes (AOPs) based on peroxymonosulfate (PMS) activation have been developed as an ideal pathway for completely eradication of recalcitrant organic pollutants from water environment. Herein, the V-doped graphitic carbon nitride (g-C3N4) is rationally fabricated by one-step thermal polymerization method to activate PMS for contamination decontamination. The results demonstrate the V atoms are successfully integrated into the framework of g-C3N4, which can effectively improve light absorption intensity and enhance charge separation. The V-doped g-C3N4 displays superior catalytic performance for PMS activation. Moreover, the doping content has a great influence on the activation performances. The radical quenching experiments confirm •O2-, SO4•-, and h+ are the significant species in the catalytic reaction. This work would provide a feasible strategy to exploit efficient g-C3N4-based material for PMS activation.
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Affiliation(s)
- Zhi Deng
- Key Laboratory of Shale Gas Exploration, Ministry of Natural Resources, Chongqing Institute of Geology and Mineral Resources, Chongqing 401120, China
| | - Zhenhua Huang
- Key Laboratory of Shale Gas Exploration, Ministry of Natural Resources, Chongqing Institute of Geology and Mineral Resources, Chongqing 401120, China
| | - Jun Liu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Environment and Ecology, Chongqing University, Chongqing 400044, China
| | - Yongkui Huang
- Key Laboratory of Shale Gas Exploration, Ministry of Natural Resources, Chongqing Institute of Geology and Mineral Resources, Chongqing 401120, China
| | - Peili Lu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Environment and Ecology, Chongqing University, Chongqing 400044, China
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Photocatalytic activity of TiO2 mechanochemically modified with carbon and/or thiourea under UV and visible irradiation in the destruction of Safranine T and Rifampicinum. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02317-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kisała J, Ferraria AM, Mitina N, Cieniek B, Krzemiński P, Pogocki D, Nebesnyi R, Zaichenko O, Bobitski Y. Photocatalytic activity of layered MoS 2 in the reductive degradation of bromophenol blue. RSC Adv 2022; 12:22465-22475. [PMID: 36105982 PMCID: PMC9366594 DOI: 10.1039/d2ra03362c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/28/2022] [Indexed: 11/21/2022] Open
Abstract
Molybdenum disulphide (MoS2) is a layered material with interesting photocatalytic properties. In this study, a layered MoS2 was produced using a hydrothermal method. The obtained material was characterised by XRD (X-ray diffraction), XPS (X-ray photoelectron spectroscopy), SEM (scanning electron microscopy), UV-Vis spectroscopy, DLS (dynamic light scattering), and zeta potential analysis. For the evaluation of the photocatalytic properties of layered MoS2, a solution of bromophenol blue (BPB) and the catalyst was illuminated for 120 minutes. According to the experimental results, MoS2 exhibited excellent catalytic activity in BPB degradation. The MoS2 preparation method enabled improved light harvesting, avoided fast charge recombination (related to bulk MoS2), and created a large number of suitable electron transfer sites for photocatalytic reactions. Simulation of BPB decay and bromide production was carried out for a further understanding of MoS2 photocatalytic action. The simulation results proved the reduction mechanism of BPB photodegradation. Molybdenum disulphide (MoS2) is a layered material with interesting photocatalytic properties.![]()
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Affiliation(s)
- Joanna Kisała
- Department of Biology, Institute of Biology and Biotechnology, University of Rzeszow, Pigonia 1, 35-310 Rzeszow, Poland
| | - Ana M. Ferraria
- BSIRG-iBB-Institute for Bioengineering and Biosciences, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Nataliya Mitina
- Department of Organic Chemistry, Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University, 79013 Lviv, Ukraine
| | - Bogumił Cieniek
- Institute of Materials Science, College of Natural Sciences, University of Rzeszow, Pigonia 1, 35-959 Rzeszow, Poland
| | - Piotr Krzemiński
- Centre for Microelectronics and Nanotechnology, Institute of Physics, University of Rzeszow, Pigonia 1, 35-959 Rzeszow, Poland
| | - Dariusz Pogocki
- Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195, Warsaw, Poland
| | - Roman Nebesnyi
- Technology of Organic Products Department, Lviv Polytechnic National University, 12S. Bandera St., Lviv, 79013, Ukraine
| | - Oleksandr Zaichenko
- Department of Organic Chemistry, Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University, 79013 Lviv, Ukraine
| | - Yaroslav Bobitski
- Centre for Microelectronics and Nanotechnology, Institute of Physics, University of Rzeszow, Pigonia 1, 35-959 Rzeszow, Poland
- Department of Photonics, Lviv Polytechnic National University, 1 Sviatoho Yura Sq., 79013 Lviv, Ukraine
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