ChemInform Abstract: Photocatalytic Decomposition of Pure Water over NiO Supported on KTa(M)O3 (M: Ti4+, Hf4+, Zr4+) Perovskite Oxide.

Mitsui, Chiemi; Nishiguchi, Hiroyasu; Fukamachi, Keiko; Ishihara, Takeshi; Takita, Yusaku

doi:10.1002/chin.200013015

Cited by 2 publications

(2 citation statements)

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“…There was no significant change in the Ti 2p spectra. The binding energy of 458.6 eV for Ti 2p 3 Titanium Dioxidesignificant difference observed in the O 1s spectra. The peak at 529.8 eV was assigned to lattice oxygen of TiO 2 , and the shoulder peak at 531.5-532.0 eV was assigned to surface hydroxyl groups.…”

Section: Esr and Uv-vis-nir Spectroscopymentioning

confidence: 86%

Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst

Amano¹

2017

Titanium Dioxide

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For TiO 2 photocatalysts, recombination of photoexcited electrons and holes would occur in crystalline defects such as oxygen vacancies, Ti 3+ ions, and surface states. Therefore, it is believed that the density of crystalline defects should be decreased to improve the photocatalytic activity of TiO 2 particles. Contrary to this common knowledge, the introduction of crystalline defects by hydrogen reduction treatment is shown to increase the lifetime of photoexcited electrons in rutile TiO 2 photocatalysts with an increase of n-type electrical conductivity. The photocatalytic activities of H 2 -reduced rutile TiO 2 were higher than those of anatase TiO 2 and mixed-phase TiO 2 . This chapter explains the effect of donor doping on the photocatalytic activity of rutile TiO 2 , the relationship between its physicochemical properties and photocatalytic performances, and the mechanism of the enhanced activity of H 2 -reduced TiO 2 . Particle size dependence on the enhanced activities suggests the formation of a space charge layer in large TiO 2 crystallites.

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Section: Esr and Uv-vis-nir Spectroscopymentioning

confidence: 86%

Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst

Amano¹

2017

Titanium Dioxide

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“…Perovskite compounds have been used for heterogeneous catalysis like CO oxidation, oxidation of hydrocarbons, NO x decomposition, and exhaust treatment . Compounds like SrTiO 3 and KTaO 3 have been used for photocatalytic splitting of water. In addition, titanates and cobaltites have been extensively used for photocatalytic oxidation of CO , and photocatalytic synthesis of ammonia with SrTiO 3 as a catalyst …”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structure, and Photocatalytic Activity in Orthorhombic Perovskites LnVO₃ and Ln_1−xTi_xVO₃ (Ln = Ce, Pr, and Nd)

Saha

Mahapatra

Row

et al. 2009

Ind. Eng. Chem. Res.

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Orthorhombic perovskite type LnVO 3 and Ln 1-x Ti x VO 3 (Ln ) Ce, Pr, and Nd) have been synthesized by the solid state method. The structures of these compounds have been unequivocally established based on high resolution powder X-ray diffraction data using Rietveld refinement methodology followed by difference Fourier analysis. It is shown that substitution of Ti occurs at the vanadium site and not at the cerium site. The compounds have been tested for photocatalytic degradation of various dyes and substituted phenols. It is observed that doping of Ti remarkably improves the photodegradation efficiency of these orthorhombic perovskites.

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ChemInform Abstract: Photocatalytic Decomposition of Pure Water over NiO Supported on KTa(M)O₃ (M: Ti⁴⁺, Hf⁴⁺, Zr⁴⁺) Perovskite Oxide.

Cited by 2 publications

References 1 publication

Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst

Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst

Synthesis, Structure, and Photocatalytic Activity in Orthorhombic Perovskites LnVO₃ and Ln_1−xTi_xVO₃ (Ln = Ce, Pr, and Nd)

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ChemInform Abstract: Photocatalytic Decomposition of Pure Water over NiO Supported on KTa(M)O3 (M: Ti4+, Hf4+, Zr4+) Perovskite Oxide.

Cited by 2 publications

References 1 publication

Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst

Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst

Synthesis, Structure, and Photocatalytic Activity in Orthorhombic Perovskites LnVO3 and Ln1−xTixVO3 (Ln = Ce, Pr, and Nd)

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ChemInform Abstract: Photocatalytic Decomposition of Pure Water over NiO Supported on KTa(M)O₃ (M: Ti⁴⁺, Hf⁴⁺, Zr⁴⁺) Perovskite Oxide.

Synthesis, Structure, and Photocatalytic Activity in Orthorhombic Perovskites LnVO₃ and Ln_1−xTi_xVO₃ (Ln = Ce, Pr, and Nd)