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Thakur N, Thakur N, Kumar A, Thakur VK, Kalia S, Arya V, Kumar A, Kumar S, Kyzas GZ. A critical review on the recent trends of photocatalytic, antibacterial, antioxidant and nanohybrid applications of anatase and rutile TiO2 nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169815. [PMID: 38184262 DOI: 10.1016/j.scitotenv.2023.169815] [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: 11/03/2023] [Revised: 12/22/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have become a focal point of research due to their widespread daily use and diverse synthesis methods, including physical, chemical, and environmentally sustainable approaches. These nanoparticles possess unique attributes such as size, shape, and surface functionality, making them particularly intriguing for applications in the biomedical field. The continuous exploration of TiO2 NPs is driven by the quest to enhance their multifunctionality, aiming to create next-generation products with superior performance. Recent research efforts have specifically focused on understanding the anatase and rutile phases of TiO2 NPs and evaluating their potential in various domains, including photocatalytic processes, antibacterial properties, antioxidant effects, and nanohybrid applications. The hypothesis guiding this research is that by exploring different synthesis methods, particularly chemical and environmentally friendly approaches, and incorporating doping and co-doping techniques, the properties of TiO2 NPs can be significantly improved for diverse applications. The study employs a comprehensive approach, investigating the effects of nanoparticle size, shape, dose, and exposure time on performance. The synthesis methods considered encompass both conventional chemical processes and environmentally friendly alternatives, with a focus on how doping and co-doping can enhance the properties of TiO2 NPs. The research unveils valuable insights into the distinct phases of TiO2 NPs and their potential across various applications. It sheds light on the improved properties achieved through doping and co-doping, showcasing advancements in photocatalytic processes, antibacterial efficacy, antioxidant capabilities, and nanohybrid applications. The study concludes by emphasizing regulatory aspects and offering suggestions for product enhancement. It provides recommendations for the reliable application of TiO2 NPs, addressing a comprehensive spectrum of critical aspects in TiO2 NP research and application. Overall, this research contributes to the evolving landscape of TiO2 NP utilization, offering valuable insights for the development of innovative and high-performance products.
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Affiliation(s)
- Naveen Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India.
| | - Nikesh Thakur
- Department of Physics, Career Point University, Hamirpur, Himachal Pradesh 176041, India
| | - Anil Kumar
- School of chemical and metallurgical engineering, University of the Witwatersrand, Johannesburg, South Africa
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, SRUC, Kings Buildings West Mains Road, Edinburgh EH9 3JG, United Kingdom
| | - Susheel Kalia
- Department of Chemistry, ACC Wing (Academic Block) Indian Military Academy, Dehradun, Uttarakhand 248007, India
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Ashwani Kumar
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, Uttarakhand 249405, India
| | - Sunil Kumar
- Department of Animal Sciences, Central University of Himachal Pradesh, Kangra, Shahpur, Himachal Pradesh 176206, India
| | - George Z Kyzas
- Hephaestus Laboratory, Department of Chemistry, School of Science, International Hellenic University, Kavala, Greece.
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Elamin NY, Indumathi T, Ranjith Kumar E. Pluronic f127 encapsulated titanium dioxide nanoparticles: Evaluation of physiochemical properties for biological applications. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Carrapiço A, Martins MR, Caldeira AT, Mirão J, Dias L. Biosynthesis of Metal and Metal Oxide Nanoparticles Using Microbial Cultures: Mechanisms, Antimicrobial Activity and Applications to Cultural Heritage. Microorganisms 2023; 11:microorganisms11020378. [PMID: 36838343 PMCID: PMC9960935 DOI: 10.3390/microorganisms11020378] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/21/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Nanoparticles (1 to 100 nm) have unique physical and chemical properties, which makes them suitable for application in a vast range of scientific and technological fields. In particular, metal nanoparticle (MNPs) research has been showing promising antimicrobial activities, paving the way for new applications. However, despite some research into their antimicrobial potential, the antimicrobial mechanisms are still not well determined. Nanoparticles' biosynthesis, using plant extracts or microorganisms, has shown promising results as green alternatives to chemical synthesis; however, the knowledge regarding the mechanisms behind it is neither abundant nor consensual. In this review, findings from studies on the antimicrobial and biosynthesis mechanisms of MNPs were compiled and evidence-based mechanisms proposed. The first revealed the importance of enzymatic disturbance by internalized metal ions, while the second illustrated the role of reducing and negatively charged molecules. Additionally, the main results from recent studies (2018-2022) on the biosynthesis of MNPs using microorganisms were summarized and analyzed, evidencing a prevalence of research on silver nanoparticles synthesized using bacteria aiming toward testing their antimicrobial potential. Finally, a synopsis of studies on MNPs applied to cultural heritage materials showed potential for their future use in preservation.
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Affiliation(s)
- António Carrapiço
- HERCULES Laboratory, Cultural Heritage, Studies and Safeguard, University of Évora, 7000-809 Évora, Portugal
- Institute for Research and Advanced Training (IIFA), University of Évora, 7000-809 Évora, Portugal
| | - Maria Rosário Martins
- HERCULES Laboratory, Cultural Heritage, Studies and Safeguard, University of Évora, 7000-809 Évora, Portugal
- Department of Medicinal Sciences and Health, School of Health and Human Development, University of Évora, 7000-671 Évora, Portugal
| | - Ana Teresa Caldeira
- HERCULES Laboratory, Cultural Heritage, Studies and Safeguard, University of Évora, 7000-809 Évora, Portugal
- Department of Chemistry and Biochemistry, School of Sciences and Technology, University of Évora, 7000-671 Évora, Portugal
| | - José Mirão
- HERCULES Laboratory, Cultural Heritage, Studies and Safeguard, University of Évora, 7000-809 Évora, Portugal
- Department of Geosciences, School of Sciences and Technology, University of Évora, 7000-671 Évora, Portugal
| | - Luís Dias
- HERCULES Laboratory, Cultural Heritage, Studies and Safeguard, University of Évora, 7000-809 Évora, Portugal
- Department of Geosciences, School of Sciences and Technology, University of Évora, 7000-671 Évora, Portugal
- Correspondence:
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Application of Synthesized Vanadium-Titanium Oxide Nanocomposite to Eliminate Rhodamine-B Dye from Aqueous Medium. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010176. [PMID: 36615371 PMCID: PMC9821815 DOI: 10.3390/molecules28010176] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
In this study, a V@TiO2 nanocomposite is examined for its ability to eliminate carcinogenic Rhodamine (Rh-B) dye from an aqueous medium. A simple ultrasonic method was used to produce the nanosorbent. In addition, V@TiO2 was characterized using various techniques, including XRD, HRTEM, XPS, and FTIR. Batch mode studies were used to study the removal of Rh-B dye. In the presence of pH 9, the V@TiO2 nanocomposite was able to remove Rh-B dye to its maximum extent. A correlation regression of 0.95 indicated that the Langmuir model was a better fit for dye adsorption. Moreover, the maximum adsorption capacity of the V@TiO2 nanocomposite was determined to be 158.8 mg/g. According to the thermodynamic parameters, dye adsorption followed a pseudo-first-order model. Based on the results of the study, a V@TiO2 nanocomposite can be reused for dye removal using ethanol.
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Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations. Catalysts 2022. [DOI: 10.3390/catal12080834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Activated carbon doping TiO2 nanoparticles were synthesised by zapota leaf extract using the co-precipitation method. The bio-constituents of plant compounds were used in the reactions of stabilization and reductions. The carbon loading on the TiO2 nanoparticles was characterised by XRD, FTIR, UV-DRS, SEM with EDX, and TEM analysis. The loading of activated carbon onto the TiO2 nanoparticles decreased the crystallite size and optical bandgap, and their doping improved the surface structure of AC/TiO2 nanoparticles. Mesoporous/microporous instability was remodified from the activated carbon, which was visualised using SEM and TEM analysis, respectively. The photocatalytic dye degradation of Rh-B dye was degraded in TiO2 and AC/TiO2 nanoparticles under visible light irradiation. The degradation efficiencies of TiO2 and AC/TiO2 nanoparticles were 73% and 91%, respectively. The bacterial abilities of TiO2 and AC/TiO2 nanoparticles were examined by E. coli and S. aureus. The water reclamation efficiency and bactericidal effect of TiO2 and AC/TiO2 nanoparticles were examined via catalytic dye degradation and bacterial efficiency of activated carbon-doped titanium dioxide nanoparticles.
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TiO2/Karaya Composite for Photoinactivation of Bacteria. MATERIALS 2022; 15:ma15134559. [PMID: 35806684 PMCID: PMC9267801 DOI: 10.3390/ma15134559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 12/26/2022]
Abstract
TiO2/Karaya composite was synthesized by the sol-gel method for the photoinactivation of pathogens. This is the first time that we have reported this composite for an antimicrobial approach. The structure, morphology, and optical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-rays (EDS), Fourier transform infrared spectroscopy (FTIR), and diffuse reflectance, and the surface area was characterized by the BET method. The XRD and EDS results showed that the TiO2/Karaya composite was successfully stabilized by the crystal structure and pore diameter distribution, indicating a composite of mesoporous nature. Furthermore, antibacterial experiments showed that the TiO2/Karaya composite under light was able to photoinactivate bacteria. Therefore, the composite is a promising candidate for inhibiting the growth of bacteria.
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