Antimicrobial TiO2 nanocomposite coatings for surfaces, dental and orthopaedic implants

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 416, P. 129071 - 129071

Published: Feb. 23, 2021

Engineering of self-disinfecting surfaces to constrain the spread SARS-CoV-2 is a challenging task for scientific community because human coronavirus spreads through respiratory droplets. Titania (TiO2) nanocomposite antimicrobial coatings one ideal remedies disinfect pathogens (virus, bacteria, fungi) from common under light illumination. The photocatalytic disinfection efficiency recent TiO2 surfaces, dental and orthopaedic implants are emphasized in this review. Mostly, inorganic metals (e.g. copper (Cu), silver (Ag), manganese (Mn), etc), non-metals fluorine (F), calcium (Ca), phosphorus (P)) two-dimensional materials MXenes, MOF, graphdiyne) were incorporated with regulate charge transfer mechanism, surface porosity, crystallinity, microbial efficiency. activity was evaluated against most crucial pathogenic microbes such as Escherichia coli, methicillin-resistant Staphylococcus aureus, Pseudomonas aeruginosa, Bacillus subtilis, Legionella pneumophila, Streptococcus mutans, T2 bacteriophage, H1N1, HCoV-NL63, vesicular stomatitis virus, bovine coronavirus. Silane functionalizing agents polymers used coat titanium (Ti) metal introduce superhydrophobic features avoid adhesion. disclosed exceptional bio-corrosion resistance, durability, biocompatibility, bone-formation capability, long-term Moreover, commercial trend, techno-economics, challenges, prospects also discussed briefly.

Language: Английский

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Photocatalytic Degradation of Organic and Inorganic Pollutants to Harmless End Products: Assessment of Practical Application Potential for Water and Air Cleaning

Catalysts, Journal Year: 2023, Volume and Issue: 13(2), P. 380 - 380

Published: Feb. 9, 2023

It is well-documented that large-scale pollution generated by human activity has a dramatic impact on ecosystems. In this context, removing harmful chemicals via photocatalysis tremendous potential as depollution method, utilizing freely available solar light and catalytic materials with low or negligible ecotoxicity. The main drawbacks, which aren’t often addressed in the literature, are formation of intermediate products, reaction rates, limited catalyst stability, difficult recovery. most cases, published works assess efficiency tested photocatalysts from pollutant degradation studies, whereas identifying quantifying by-products not conducted. This review summarizes recent advances reported for photocatalytic removal some organic (e.g., alcohols, carboxylic acids, volatile compounds, phenol) inorganic NO3−) contaminants. various UV- visible-light active pathways were explained, emphasizing factors contributing to their mineralization. mechanisms, identification quantification intermediates, implication reactive species (ROS) discussed analyzed each category model target pollutant. Additionally, actual challenges future approaches improve environmental remediation presented.

Language: Английский

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Volatile organic compounds (VOCs) removal by photocatalysts: A review

Chemosphere, Journal Year: 2022, Volume and Issue: 306, P. 135655 - 135655

Published: July 8, 2022

Language: Английский

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A comprehensive review and perspective research in technology integration for the treatment of gaseous volatile organic compounds

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118472 - 118472

Published: March 6, 2024

Language: Английский

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Metaheuristic optimization algorithms-based prediction modeling for titanium dioxide-Assisted photocatalytic degradation of air contaminants

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102637 - 102637

Published: July 29, 2024

Airborne contaminants pose significant environmental and health challenges. Titanium dioxide (TiO2) has emerged as a leading photocatalyst in the degradation of air compared to other photocatalysts due its inherent inertness, cost-effectiveness, photostability. To assess effectiveness, laboratory examinations are frequently employed measure photocatalytic rate TiO2. However, this approach involves time-consuming requirements, labor-intensive tasks, high costs. In literature, ensemble or standalone models commonly used for assessing performance TiO2 water contaminants. Nonetheless, application metaheuristic hybrid potential be more effective predictive accuracy efficiency. Accordingly, research utilized machine learning (ML) algorithms estimate photo-degradation constants organic pollutants using nanoparticles exposure ultraviolet light. Six metaheuristics optimization algorithms, namely, nuclear reaction (NRO), differential evolution algorithm (DEA), human felicity (HFA), lightning search (LSA), Harris hawks (HHA), tunicate swarm (TSA) were combined with random forest (RF) technique establish models. A database 200 data points was acquired from experimental studies model training testing. Furthermore, multiple statistical indicators 10-fold cross-validation examine established model's robustness. The TSA-RF demonstrated superior prediction among six suggested models, achieving an impressive correlation (R) 0.90 lower root mean square error (RMSE) 0.25. contrast, HFA-RF, HHA-RF, NRO-RF exhibited slightly R-value 0.88, RMSE scores 0.32. DEA-RF LSA-RF while effective, showed marginally 0.85, values 0.45 0.44, respectively. Moreover, SHapley Additive exPlanation (SHAP) results indicated that rates through photocatalysis most notably influenced by factors such reactor sizes, dosage, humidity, intensity.

Language: Английский

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MnO2 nanoparticles encapsuled in spheres of Ce-Mn solid solution: Efficient catalyst and good water tolerance for low-temperature toluene oxidation

Applied Surface Science, Journal Year: 2019, Volume and Issue: 504, P. 144481 - 144481

Published: Oct. 29, 2019

Language: Английский

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Polymer Nanocomposites for Photocatalytic Applications

Catalysts, Journal Year: 2019, Volume and Issue: 9(12), P. 986 - 986

Published: Nov. 24, 2019

In the present comprehensive review we have specifically focused on polymer nanocomposites used as photocatalytic materials in fine organic reactions or pollutants degradation. The selection of substrates for immobilization active catalyst particles is motivated by several advantages displayed them, such as: Environmental stability, chemical inertness and resistance to ultraviolet radiations, mechanical low prices ease availability. Additionally, use photocatalysts offers possibility a facile separation reuse materials, eliminating thus post-treatment processes implicitly reducing costs procedure. This covers polymer-based containing most popular inorganic nanoparticles with good catalytic performance under UV visible light, namely TiO2, ZnO, CeO2, plasmonic (Ag, Au, Pt, Pd) NPs. study mainly targeted preparation, activity, strategies directed toward increase efficiency light hybrid catalysts.

Language: Английский

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Photocatalytic inactivation of airborne bacteria in a polyurethane foam reactor loaded with a hybrid of MXene and anatase TiO2 exposing {0 0 1} facets

Chemical Engineering Journal, Journal Year: 2020, Volume and Issue: 404, P. 126526 - 126526

Published: Aug. 5, 2020

Language: Английский

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Recent progress on catalysts for catalytic oxidation of volatile organic compounds: a review

Catalysis Science & Technology, Journal Year: 2022, Volume and Issue: 12(23), P. 6945 - 6991

Published: Jan. 1, 2022

Recent advances in understanding the oxidation mechanism of VOCs and catalysts VOC removal are discussed, highlighting influence various factors on catalytic performance, including deactivation by water vapor, SO 2 CO proposes regeneration approaches.

Language: Английский

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Unravelling the pathway determining the CO2 selectivity in photocatalytic toluene oxidation on TiO2 with different particle size

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144138 - 144138

Published: June 17, 2023

Language: Английский

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