The effect of metal cluster deposition route on structure and photocatalytic activity of mono- and bimetallic nanoparticles supported on TiO2 by radiolytic method

Klein, Marek; Nadolna, Joanna; Gołąbiewska, Anna; Klimczuk, Tomasz; Remita, Hynd; Zaleska-Medynska, Adriana

doi:10.1016/j.apsusc.2016.03.191

Cited by 68 publications

(24 citation statements)

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“…The intensity of PL in this region is the same for all the samples. The emission peak at 420 nm can be ascribed to the indirect band edge allowed transitions and self-trapped excitations localized in [TiO 6 ] 8− 32. The self-trapped exciton results from interaction of conduction band electrons localized on Ti 3d orbital with holes on O 2p orbital of TiO 2 31.…”

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confidence: 99%

“…The self-trapped exciton results from interaction of conduction band electrons localized on Ti 3d orbital with holes on O 2p orbital of TiO 2 31. The emission peaks at 440 nm and 490 nm correspond to shallow trap state near the absorption band edge emission, which results from the presence of oxygen vacancies [31][32][33][34]. Emission peak at 530 nm is assigned to deep-trap states related to the presence of oxygen vacancies O 2− .…”

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confidence: 99%

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Gas‐phase removal of indoor volatile organic compounds and airborne microorganisms over mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide nanocomposites

et al. 2019

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The photocatalytic deactivation of volatile organic compounds and mold fungi using TiO2 modified with mono‐ and bimetallic (Pt, Cu, Ag) particles is reported in this study. The mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide photocatalysts were prepared by chemical reduction method and characterized using XRD, XPS, DR/UV‐Vis, BET, and TEM analysis. The effect of incident light, type and content of mono‐ and bimetallic nanoparticles deposited on titanium(IV) oxide was studied. Photocatalytic activity of as‐prepared nanocomposites was examined in the gas phase using LEDs array. High photocatalytic activity of Ag/Pt‐TiO2 and Cu/Pt‐TiO2 in the reaction of toluene degradation resulted from improved efficiency of interfacial charge transfer process, which was consistent with the fluorescence quenching effect revealed by photoluminescence (PL) emission spectra. The photocatalytic deactivation of Penicillium chrysogenum, a pathogenic fungi present in the indoor environment, especially in a damp or water‐damaged building using mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide was evaluated for the first time. TiO2 modified with mono‐ and bimetallic NPs of Ag/Pt, Cu, and Ag deposited on TiO2 exhibited improved fungicidal activity under LEDs illumination than pure TiO2.

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Gas‐phase removal of indoor volatile organic compounds and airborne microorganisms over mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide nanocomposites

et al. 2019

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“…Although the effects of deposition of platinum on surface of different semiconductors have been extensively investigated, no reports have been made about the effects of Rh and Ru deposition on SrTiO 3 [75][76][77]. The presence of a noble metal on a semiconductor is usually believed to retard the otherwise fast electron-hole pair recombination by serving as an electron sink (Schottky barrier electron trapping) and to facilitate the interfacial electron transfer to dioxygen or other electron acceptors.…”

Section: Noble Metal Enhanced Mechanismmentioning

confidence: 98%

TiO2/SrTiO3 and SrTiO3 microspheres decorated with Rh, Ru or Pt nanoparticles: Highly UV–vis responsible photoactivity and mechanism

Grabowska

Marchelek

Klimczuk

et al. 2017

Journal of Catalysis

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“…Klein et al [263] deposited single atom and diatomic clusters (Pd, Pt, Ag/Pd, Ag/Pt, and Pd/Pt) on the surface of TiO 2 (P25) using a high energy radiation reduction method. By the photocatalytic decomposition of toluene, it was found that palladium/platinum-titanium dioxide (Pd/Pt-TiO 2 ) has the strongest decomposing ability for toluene in the ultraviolet and visible range.…”

Section: Precious Metal Depositingmentioning

confidence: 99%

“…Block diagram of (A) mono metal or bimetallic (both) TiO 2 modification and (B) bimetallic TiO 2 modification (seq)[263].…”

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Recent Advances and Applications of Semiconductor Photocatalytic Technology

et al. 2019

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Along with the development of industry and the improvement of people’s living standards, peoples’ demand on resources has greatly increased, causing energy crises and environmental pollution. In recent years, photocatalytic technology has shown great potential as a low-cost, environmentally-friendly, and sustainable technology, and it has become a hot research topic. However, current photocatalytic technology cannot meet industrial requirements. The biggest challenge in the industrialization of photocatalyst technology is the development of an ideal photocatalyst, which should possess four features, including a high photocatalytic efficiency, a large specific surface area, a full utilization of sunlight, and recyclability. In this review, starting from the photocatalytic reaction mechanism and the preparation of the photocatalyst, we review the classification of current photocatalysts and the methods for improving photocatalytic performance; we also further discuss the potential industrial usage of photocatalytic technology. This review also aims to provide basic and comprehensive information on the industrialization of photocatalysis technology.

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The effect of metal cluster deposition route on structure and photocatalytic activity of mono- and bimetallic nanoparticles supported on TiO2 by radiolytic method

Cited by 68 publications

References 50 publications

Gas‐phase removal of indoor volatile organic compounds and airborne microorganisms over mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide nanocomposites

Gas‐phase removal of indoor volatile organic compounds and airborne microorganisms over mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide nanocomposites

TiO2/SrTiO3 and SrTiO3 microspheres decorated with Rh, Ru or Pt nanoparticles: Highly UV–vis responsible photoactivity and mechanism

Recent Advances and Applications of Semiconductor Photocatalytic Technology

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