Interfacial photochemistry: fundamental and applications

Fujishima, Akira; Rao, Tata Narsinga

doi:10.1351/pac199870112177

Cited by 42 publications

(20 citation statements)

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“…One model for the photoinduced superhydrophilicity is based on surface structural changes caused by the photogenerated electron-hole pair. Hashimoto and co-workers [12,13] has suggested the following mechanism for the photoinduced superhydrophilicity. The photogenerated holes are assumed to be trapped at lattice oxygen at the surface of the TiO 2 film.…”

Section: Introductionmentioning

confidence: 99%

Influence of the OH groups on the photocatalytic activity and photoinduced hydrophilicity of microwave assisted sol–gel TiO2 film

Simonsen¹,

Søgaard³

2009

Applied Surface Science

165

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Section: Introductionmentioning

confidence: 99%

Influence of the OH groups on the photocatalytic activity and photoinduced hydrophilicity of microwave assisted sol–gel TiO2 film

Simonsen¹,

Søgaard³

2009

Applied Surface Science

165

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“…The basis and more significant applications of semiconductor photocatalytic oxidation have been extensively documented in the last 20 years [6][7][8][9][10][11][12]. One of the main problems associated with feasibility and viability of semiconductor photocatalytic oxidation is represented by a high tendency of photoinduced holeelectron pairs to recombine, leading to lower activity of semiconductor photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Investigations on the surface modification of ZnO nanoparticle photocatalyst by depositing Pd

Jing

Wang

Xin

et al. 2004

Journal of Solid State Chemistry

143

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“…TiO 2 nanoparticles are widely used in industry as catalysts, catalyst supports, components of solar cells, and even household products [1][2][3][4][5][6] . Dopants are often incorporated to improve structural and thermal stability, catalytic activity and selectivity, photoresponse, and other desirable chemical and physical properties [7][8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Determining the Location and Role of Al in Al-Modified TiO₂ Nanoparticles Using Low-Temperature Heat Capacity, Electron Energy-Loss Spectroscopy, and X-ray Diffraction

et al. 2015

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The location and function of dopants in metal oxide nanoparticles have been poorly characterized for many systems. We have performed heat capacity measurements, electron energy-loss spectroscopy (EELS), and X-ray diffraction (XRD) on ten TiO 2 nanoparticle samples that have different amounts of Al dopant to determine the location and function of the Al 3+ cations. From the heat capacity data, lattice vacancies are observed to increase significantly with the addition of the Al dopant, suggesting Al 3+ cations enter the TiO 2 lattice and create vacancies due to the charge difference between Al 3+ and Ti 4+ . The presence of gapped terms in fits of the low-temperature heat capacity data also suggests that small regions of short-range order are created within the TiO 2 lattice. Entropies at T = 298.15 K were determined from the heat capacity data and show effects related to the entropy of mixing, suggesting that a solid solution of Al/TiO 2 is formed. EELS data confirm that Al enters the TiO 2 lattice but also indicates that the short-range structure around the Al atoms shifts from a TiO 2 -like environment towards an Al 2 O 3 -like environment as the dopant concentration increases. XRD data suggest that the long-range order of the particles decreases as the dopant concentration increases but retains a basic TiO 2 -like structure. This is the first investigation to use heat capacity data in this manner to determine the location of the dopant.

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Interfacial photochemistry: fundamental and applications

Abstract: Abstract

Cited by 42 publications

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Influence of the OH groups on the photocatalytic activity and photoinduced hydrophilicity of microwave assisted sol–gel TiO2 film

Influence of the OH groups on the photocatalytic activity and photoinduced hydrophilicity of microwave assisted sol–gel TiO2 film

Investigations on the surface modification of ZnO nanoparticle photocatalyst by depositing Pd

Determining the Location and Role of Al in Al-Modified TiO₂ Nanoparticles Using Low-Temperature Heat Capacity, Electron Energy-Loss Spectroscopy, and X-ray Diffraction

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Interfacial photochemistry: fundamental and applications

Abstract: Abstract

Cited by 42 publications

References 0 publications

Influence of the OH groups on the photocatalytic activity and photoinduced hydrophilicity of microwave assisted sol–gel TiO2 film

Influence of the OH groups on the photocatalytic activity and photoinduced hydrophilicity of microwave assisted sol–gel TiO2 film

Investigations on the surface modification of ZnO nanoparticle photocatalyst by depositing Pd

Determining the Location and Role of Al in Al-Modified TiO2 Nanoparticles Using Low-Temperature Heat Capacity, Electron Energy-Loss Spectroscopy, and X-ray Diffraction

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About

Determining the Location and Role of Al in Al-Modified TiO₂ Nanoparticles Using Low-Temperature Heat Capacity, Electron Energy-Loss Spectroscopy, and X-ray Diffraction