Visible-light photocatalytic activity of Fe@TiO2 core–shell composite synthesized by sol–gel method

Yeh, Min Yen; Yang, Tzu Yuan; Wu, Tsung Chi; Lee, Shiow Yueh; Chang, Shun-Hsyung

doi:10.1142/s021797922040127x

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…The photocatalytic degradation of methylene blue reached 98% under UV light irradiation within 5 h, compared to 85% under visible light during the same period. 141 …”

Section: Toward Visible-light Activity–dopingmentioning

confidence: 99%

“…The photocatalytic degradation of methylene blue reached 98% under UV light irradiation within 5 h, compared to 85% under visible light during the same period. 141 Ferreira et al investigated the effect of Co and Ndoped TiO 2 NPs through an improved hydrothermal method. The photocatalysts were evaluated for their photocatalytic activity in UV, visible, and ambient light conditions.…”

Section: Antimicrobial Activity Of Tio 2 In Coatings and Paintmentioning

confidence: 99%

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Using visible light to activate antiviral and antimicrobial properties of TiO2 nanoparticles in paints and coatings: focus on new developments for frequent-touch surfaces in hospitals

et al. 2023

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The COVID-19 pandemic refocused scientists the world over to produce technologies that will be able to prevent the spread of such diseases in the future. One area that deservedly receives much attention is the disinfection of health facilities like hospitals, public areas like bathrooms and train stations, and cleaning areas in the food industry. Microorganisms and viruses can attach to and survive on surfaces for a long time in most cases, increasing the risk for infection. One of the most attractive disinfection methods is paints and coatings containing nanoparticles that act as photocatalysts. Of these, titanium dioxide is appealing due to its low cost and photoreactivity. However, on its own, it can only be activated under high-energy UV light due to the high band gap and fast recombination of photogenerated species. The ideal material or coating should be activated under artificial light conditions to impact indoor areas, especially considering wall paints or frequent-touch areas like door handles and elevator buttons. By introducing dopants to TiO 2 NPs, the bandgap can be lowered to a state of visible-light photocatalysis occurring. Naturally, many researchers are exploring this property now. This review article highlights the most recent advancements and research on visible-light activation of TiO 2 -doped NPs in coatings and paints. The progress in fighting air pollution and personal protective equipment is also briefly discussed. Graphical Abstract Indoor visible-light photocatalytic activation of reactive oxygen species (ROS) over TiO 2 nanoparticles in paint to kill bacteria and coat frequently touched surfaces in the medical and food industries.

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“…The photocatalytic degradation of methylene blue reached 98% under UV light irradiation within 5 h, compared to 85% under visible light during the same period. 141 …”

Section: Toward Visible-light Activity–dopingmentioning

confidence: 99%

Section: Antimicrobial Activity Of Tio 2 In Coatings and Paintmentioning

confidence: 99%