Titanium Dioxide as the Most Used Photocatalyst for Water Purification: An Overview

Catalysts, Journal Year: 2022, Volume and Issue: 13(1), P. 26 - 26

Published: Dec. 24, 2022

Titanium dioxide (TiO2), one of the most frequently used materials in general, has emerged as an excellent photocatalytic material for environmental applications. In this review, principles and mechanisms activity TiO2 have been analyzed. Structural physical specificities nanoparticles, such morphology, crystal structure, electronic optical properties, considered context A review influence several factors, type dimensions photocatalyst particles, pH solution, oxidants/electron acceptors, light intensity on properties TiO2, provided. Superhydrophilicity intrinsic property surface was discussed through reconstruction during reversible hydrophilic changes. Additionally, attention paid to improving particles aggregation agglomeration.

Language: Английский

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State-of-the-art review on photocatalysis for efficient wastewater treatment: Attractive approach in photocatalyst design and parameters affecting the photocatalytic degradation

Catalysis Communications, Journal Year: 2023, Volume and Issue: 183, P. 106764 - 106764

Published: Sept. 15, 2023

This review focuses on recently proposed photocatalyst designs for maximizing the efficiency of photogenerated charge carriers to improve photocatalytic performance photocatalysts. These include doping with metal and non-metal ions, surface grafting, noble deposition, dye sensitization, heterostructure fabrication. In addition, this thoroughly examines all prominent parameters that can influence degradation Furthermore, summarizes energy-band structures photocatalysts are suitable both O2 reduction oxidation H2O molecules generate reactive oxygen species. Lastly, we discuss future trends in development environmental applications.

Language: Английский

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Recent Advances in Advanced Oxidation Processes for Degrading Pharmaceuticals in Wastewater—A Review

Catalysts, Journal Year: 2024, Volume and Issue: 14(3), P. 189 - 189

Published: March 10, 2024

A large variety of pharmaceutical compounds have recently been detected in wastewater and natural water systems. This review highlighted the significance removing compounds, which are considered indispensable emerging contaminants, from Various advanced oxidation processes (AOPs), including UV-H2O2, Fenton photo-Fenton, ozone-based processes, photocatalysis, physical such as sonolysis, microwave, electron beam irradiation, regarded most viable methods to eliminate different categories discussed. All these AOPs exhibit great promising techniques, catalytic degradation process advantages, disadvantages each technique were deliberated. Heterogeneous photocatalysis employing metal oxides, particularly anatase TiO2 nanoparticles catalysts activated by UV light was reviewed terms electron–hole separation, migration charge carriers catalyst surfaces, redox potential carriers. brief overview also emphasized that TiO2-based nanomaterials photocatalysts, a combination other enhanced photocatalytic efficiency. Finally, challenges applying environmental remediation treatments degrade mass spectroscopic analysis biological activity test by-products contaminants resulting summarized.

Language: Английский

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Advances in powder nano-photocatalysts as pollutant removal and as emerging contaminants in water: Analysis of pros and cons on health and environment

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: unknown, P. 100233 - 100233

Published: Sept. 1, 2024

Language: Английский

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Research on Photocatalytic Wastewater Treatment Reactors: Design, Optimization, and Evaluation Criteria

Catalysts, Journal Year: 2023, Volume and Issue: 13(6), P. 974 - 974

Published: June 5, 2023

Photocatalytic wastewater treatment technology has been proposed for more than 30 years, but it is still seldom used in industry. The lack of research on high-performance and cost-effective photocatalytic reactors (PWTRs) may be one the major reasons limiting industrial application technology. To accelerate realization application, this review emphasizes importance increased PWTRs. In review, we analyze role treatment, followed by a comprehensive discussion PWTR design from multiple perspectives, including photocatalyst selection, loading recovery method photocatalysts within reactor, light source design, reaction conditions control. Additionally, consider cost reactor design. Finally, summarize optimization strategy PWTRs criteria evaluating performance. main innovation lies analysis with focus solutions to promote use

Language: Английский

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Emerging nanosemiconductors for photocatalytic degradation of mono-aromatic volatile organic compounds (BTEX): A pragmatic review

Journal of Organometallic Chemistry, Journal Year: 2023, Volume and Issue: 996, P. 122767 - 122767

Published: May 31, 2023

Language: Английский

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Recent advances in the application of nanoparticle-based strategies for water remediation as a novel clean technology–A comprehensive review

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 40, P. 102226 - 102226

Published: July 30, 2024

Language: Английский

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Recent trends and advancement in metal oxide nanoparticles for the degradation of dyes: synthesis, mechanism, types and its application

Nanotoxicology, Journal Year: 2024, Volume and Issue: 18(3), P. 272 - 298

Published: April 2, 2024

Synthetic dyes play a crucial role in our daily lives, especially clothing, leather accessories, and furniture manufacturing. Unfortunately, these potentially carcinogenic substances are significantly impacting water systems due to their widespread use. Dyes from various sources pose serious environmental threat owing persistence toxicity. Regulations underscore the urgency addressing this problem. In response challenge, metal oxide nanoparticles such as titanium dioxide (TiO2), zinc (ZnO), iron (Fe3O4) have emerged intriguing options for dye degradation unique characteristics production methods. This paper aims explore types of suitable degradation, synthesis methods, properties nanoparticles. The study elaborates on photocatalytic adsorption-desorption activities nanoparticles, elucidating application potential. Factors influencing including nanoparticle conditions, discussed. Furthermore, provides relevant case studies, practical applications treatment, effluent treatment specifically textile sector. Challenges agglomeration, toxicity concerns, cost-effectiveness acknowledged. Future advancements nanomaterial synthesis, integration with other materials, impact regulations potential areas development. conclusion, possess immense reducing pollution, further research development essential define long-term management.

Language: Английский

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An insight into the photocatalytic degradation of the antibiotic rifampicin by titanium dioxide nanoparticles in aqueous solution under UV light irradiation

Reaction Kinetics Mechanisms and Catalysis, Journal Year: 2024, Volume and Issue: 137(2), P. 1105 - 1123

Published: Jan. 31, 2024

Language: Английский

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Investigation of structural and optical properties of TM-doped CuO NPs: Correlation with their photocatalytic efficiency in sunlight-induced pollutant degradation

Measurement, Journal Year: 2024, Volume and Issue: 237, P. 115209 - 115209

Published: June 30, 2024

The presence of non-biodegradable, toxic, and harmful organic pollutants in various environmental mediums poses significant threats to ecosystems human health. This study investigates the impact transition metal (TM) doping on photocatalytic performance copper oxide nanoparticles (CuO NPs) degrading methylene blue (MB) dye under sunlight irradiation. CuO NPs are synthesized using co-precipitation method. X-ray diffraction (XRD) analysis revealed a monoclinic structure with space group C2/c for undoped TM–doped CuONPs, crystalline sizes ranging from 13 nm 36 Zn-doped CuO. Based UV–Visible Spectroscopy data, band gap energies nature electronic transitions determined new simplified calculation Accordingly, direct energy exhibits slight red-shift as result Ni, Mn or Fe, 1.427 eV 1.402 Fe-doped While Co Zn doping, induces trivial blue-shift 1.468 1.434 respectively. particles show heterogenous distribution size shape. mean grain raised 34.3 about 100 TM-doped CuONPS, excluding Co-doped which reached 154.532 highest standard deviation heterogeneity 125.737 nm. Furthermore, experiments demonstrated that TM-doping significantly enhanced degradation rate MB is most efficient catalyst. makes promising pathway use wastewater decontamination applications.

Language: Английский

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