Influence of the size of gold nanoparticles deposited on TiO2 upon the photocatalytic destruction of oxalic acid

Iliev, V.; Tomova, D.; Bilyarska, L.; Tyuliev, G.

doi:10.1016/j.molcata.2006.08.019

Cited by 160 publications

(92 citation statements)

References 37 publications

(65 reference statements)

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“…This enhancement mechanism relies on the presence of defect states in the TiO 2 , which enabled sub-bandgap absorption [102]. The rate of photocatalytic destruction of oxalic acid increased with TiO 2 modified with Au nanoparticles in comparison to the pure TiO 2 [103]. Remarkable influence of the pH on the particle size of Au was observed by photoreduction method.…”

Section: Photocatalytic Activity Of Gold Deposited Titania (Au/tio 2 )mentioning

confidence: 98%

“…The size of Au nanoparticle decreases in the photoreduction method by increasing the pH of the medium containing gold salt solution with TiO 2 which results in improvement of the photocatalytic activity (Table 4). At pH 9 fast precipitation of Au(OH) n Cl 4−n takes place and further the reduced gold is not deposited on the TiO 2 surface [103]. With the increase in the number of metal nanoparticle serving as effective electron traps, the photocatalytic activity increases only to a certain extent.…”

Section: Photocatalytic Activity Of Gold Deposited Titania (Au/tio 2 )mentioning

confidence: 99%

“…With the increase in the number of metal nanoparticle serving as effective electron traps, the photocatalytic activity increases only to a certain extent. But however further increase in the number of metal nanoparticles band-gap excitation of TiO 2 is hampered and decreases the extent of adsorption of oxalic acid and also water due to the large surface coverage by Au nanoparticles [103]. Microwave assisted hydrothermal synthesis of graphene based Au/TiO 2 (Au = 0.25 wt%) showed enhanced photocatalytic hydrogen evolution under visible light irradiation when compared to TiO 2 , graphene-TiO 2 and graphene-Au [104].…”

Section: Photocatalytic Activity Of Gold Deposited Titania (Au/tio 2 )mentioning

confidence: 99%

See 2 more Smart Citations

A review on plasmonic metal⿿TiO2 composite for generation, trapping, storing and dynamic vectorial transfer of photogenerated electrons across the Schottky junction in a photocatalytic system

Devi

Kavitha

2016

Applied Surface Science

311

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Section: Photocatalytic Activity Of Gold Deposited Titania (Au/tio 2 )mentioning

confidence: 98%

Section: Photocatalytic Activity Of Gold Deposited Titania (Au/tio 2 )mentioning

confidence: 99%

Section: Photocatalytic Activity Of Gold Deposited Titania (Au/tio 2 )mentioning

confidence: 99%

See 1 more Smart Citation

A review on plasmonic metal⿿TiO2 composite for generation, trapping, storing and dynamic vectorial transfer of photogenerated electrons across the Schottky junction in a photocatalytic system

Devi

Kavitha

2016

Applied Surface Science

311

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“…Although these methods have been demonstrated to be quite effective, getting fine control over particle size, size distribution and composition in the final materials still remains challenging [75]. Interestingly, noble metal loading of 1% or lower is generally regarded as optimal for a significant increase in the photocatalytic activity [58,76,77].…”

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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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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“…Iliev és munkatársai megállapították, hogy a közeg pH-jának a növelésével a képződő Au nanorészecskék mérete csökken [78].…”

Section: A Nemesfém Nanorészecskék Méretének Hatásaunclassified

Hidrogénfejlesztés nemesfémekkel módosított felületű TiO2 fotokatalizátorok alkalmazásával

Kmetykó

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Influence of the size of gold nanoparticles deposited on TiO2 upon the photocatalytic destruction of oxalic acid

Cited by 160 publications

References 37 publications

A review on plasmonic metal⿿TiO2 composite for generation, trapping, storing and dynamic vectorial transfer of photogenerated electrons across the Schottky junction in a photocatalytic system

A review on plasmonic metal⿿TiO2 composite for generation, trapping, storing and dynamic vectorial transfer of photogenerated electrons across the Schottky junction in a photocatalytic system

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

Hidrogénfejlesztés nemesfémekkel módosított felületű TiO2 fotokatalizátorok alkalmazásával

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