TiO2 coated Au/Ag nanorods with enhanced photocatalytic activity under visible light irradiation

Zhou, Na; Polavarapu, Lakshminarayana; Gao, Nong; Pan, Yutao; Yuan, Peiyan; Wang, Qing; Xu, Qing‐Hua

doi:10.1039/c3nr00517h

Cited by 187 publications

(120 citation statements)

References 32 publications

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“…It has been demonstrated that Au or Au/Ag NRs enhance the photocatalytic activity of TiO 2 . A reasonable mechanism beyond the enhanced photocatalytic dye degradation is reported in Figure 8 [67].…”

Section: Water Remediationmentioning

confidence: 99%

“…Moreover, noble metal nanoparticles can store photogenerated electrons, thus promoting charge separation in semiconductor-metal composite systems [66,67]. Several other factors may also affect photocatalytic efficiency, e.g., the surface properties, the particle size of the catalysts their morphology, and the composition and organization of the metal and TiO 2 [68].…”

Section: Tio2/plasmonic Material-based Hybrid Nanocrystalsmentioning

confidence: 99%

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Visible-Light-Active TiO2-Based Hybrid Nanocatalysts for Environmental Applications

et al. 2017

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Photocatalytic nanomaterials such as TiO 2 are receiving a great deal of attention owing to their potential applications in environmental remediation. Nonetheless, the low efficiency of this class of materials in the visible range has, so far, hampered their large-scale application. The increasing demand for highly efficient, visible-light-active photocatalysts can be addressed by hybrid nanostructured materials in which two or more units, each characterised by peculiar physical properties, surface chemistry and morphology, are combined together into a single nano-object with unprecedented chemical-physical properties. The present review intends to focus on hybrid nanomaterials, based on TiO 2 nanoparticles able to perform visible-light-driven photocatalytic processes for environmental applications. We give a brief overview of the synthetic approaches recently proposed in the literature to synthesise hybrid nanocrystals and discuss the potential applications of such nanostructures in water remediation, abatement of atmospheric pollutants (including NO x and volatile organic compounds (VOCs)) and their use in self-cleaning surfaces.

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Section: Water Remediationmentioning

confidence: 99%

Section: Tio2/plasmonic Material-based Hybrid Nanocrystalsmentioning

confidence: 99%

Visible-Light-Active TiO2-Based Hybrid Nanocatalysts for Environmental Applications

et al. 2017

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“…The effective utilization of the visible light (50% of solar spectrum) is main aim of study conducted by many research teams. A numerous modifi cation techniques, which seem to be promising for TiO 2 band-gap narrowing and shift the light absorption capacity towards visible wavelengths have been proposed [14][15][16] . The titania modifi ed with noble metals (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…ZnO, WO 3 , SiO 2 , CrO) and non-metals e.g. S, C, N are most often investigated photocatalysts [16][17][18][19] .…”

Section: Introductionmentioning

confidence: 99%

Influence of titanium dioxide modification on the antibacterial properties

Rokicka

Markowska‐Szczupak

Kowalczyk

et al. 2016

Polish Journal of Chemical Technology

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Antibacterial properties of 15 titania photocatalysts, mono-and dual-modifi ed with nitrogen and carbon were examined. Amorphous TiO 2 , supplied by Azoty Group Chemical Factory Police S.A., was used as titania source (Ar-TiO 2 , C-TiO 2 , N-TiO 2 and N,C-TiO 2 calcined at 300 o C, 400 o C, 500 o C, 600 o C, 700 o C). The disinfection ability was examined against Escherichia coli K12 under irradiation with UV and artifi cial sunlight and in dark conditions. It has been found the development of new photocatalysts with enhanced interaction ability with microorganisms might be a useful strategy to improve disinfection method conducted under artifi cial sunlight irradiation. The effi ciency of disinfection process conducted under artifi cial sunlight irradiation with carbon (C-TiO 2 ) and carbon/nitrogen (N,C-TiO 2 ) photocatalysts was similar as obtained under UV irradiation. Furthermore, during dark incubation, any toxicity of the photocatalyst was noted.

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“…Due to diverse structures and properties, the core-shell nanoparticles have wide applications in various fields such as surface-enhanced Raman scattering, photonic crystals, catalysis, nano-electronic devices, and biochemical sensor [1]- [7].Among the various core-shell nanoparticles, the fabrication of inorganic nanoparticles coated with the shell of polymers has attracted increasing attention as new materials because of their novel mechanical, electrical, and optical properties [8]- [9]. Characteristics of the hybrid colloids can be adjusted through the functionality of polymer moieties.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Conductive SiO2-Polyaniline Core-Shell Nanoparticles

Liu¹,

Syu²,

Wang³

2013

IJCEA

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Abstract-Recently, polymer-inorganic nanocomposites have attracted great attention as new materials because of their novel mechanical, electrical, and optical properties. In particular, inorganic-polymer core-shell nanoparticles are more promising in such new applications as surface-enhanced Raman scattering, photonic crystals, catalysis, nano-electronic devices, and biochemical sensor. In this study we used 1.2-Aminopropyltriethoxysilane as a coupling agent to synthesize silica-polyaniline core-shell nanoparticles. Preparation and characterization of the core-shell nanoparticles were analyzed and discussed. To evaluate the core-shell effect, the core-shell nanoparticles were incorporated into polyurethane. The nanocomposites containing the core-shellstructure nanoparticle show significant enhancement on electrical and mechanical properties compared to those containing silica nanoparticles.

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TiO2 coated Au/Ag nanorods with enhanced photocatalytic activity under visible light irradiation

Cited by 187 publications

References 32 publications

Visible-Light-Active TiO2-Based Hybrid Nanocatalysts for Environmental Applications

Visible-Light-Active TiO2-Based Hybrid Nanocatalysts for Environmental Applications

Influence of titanium dioxide modification on the antibacterial properties

Preparation and Characterization of Conductive SiO2-Polyaniline Core-Shell Nanoparticles

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