First-principles energy band calculation for undoped and N-doped InTaO4 with layered wolframite-type structure

Matsushima, Shigenori; Obata, Kenji; Nakamura, Hiroyuki; Arai, M.; Kobayashi, Kenkichiro

doi:10.1016/s0022-3697(03)00283-x

Cited by 28 publications

(30 citation statements)

References 13 publications

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“…3.50 eV, which is larger than the experimental result of 2.75 eV. The difference does not originat from the bulk, but from the surface and from defects [29]. Fig.…”

Section: Characterization Of As-prepared Powdercontrasting

confidence: 52%

A novel photocatalyst BiSbO4 for degradation of methylene blue

Lin

Huang

Wang

et al. 2006

Applied Catalysis A: General

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“…3.50 eV, which is larger than the experimental result of 2.75 eV. The difference does not originat from the bulk, but from the surface and from defects [29]. Fig.…”

Section: Characterization Of As-prepared Powdercontrasting

confidence: 52%

A novel photocatalyst BiSbO4 for degradation of methylene blue

Lin

Huang

Wang

et al. 2006

Applied Catalysis A: General

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“…These band structures obtained by the DOS calculations coincided with the ones that were optically obtained. The appearance of the N 2p narrow band is consistent with the previous report 22 …”

Section: Resultssupporting

confidence: 93%

“…The calculated band gap of InTaO 4 was approximately 3.2 eV, which is similar to that calculated by Oshikiri et al 18 . and Matsushima et al 22 . The calculated band gap often tends to be smaller than the observed band gap.…”

Section: Resultssupporting

confidence: 87%

“…The appearance of the N 2p narrow band is consistent with the previous report. 22 (2) Photocatalytic Activities Table 1. Acetone and CO 2 evolved from these photocatalysts during irradiation with Vis and UV light; furthermore, evolution of these compounds ended when irradiation was stopped.…”

Section: Resultsmentioning

confidence: 99%

“…The DOS of N-doped InTaO 4 has recently been reported and new states originating from N 2p orbitals appeared near the top of the valence band. 22 In addition, we expect that V doping at a Ta site in InTaO 4 might also generate a compound capable of absorbing Vis light, as the energy levels of the V 3d states in InVO 4 were lower than those of the Ta 5d states in InTaO 4 .…”

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confidence: 99%

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Visible Light‐Sensitive InTaO₄‐Based Photocatalysts for Organic Decomposition

Irie

Hashimoto

2005

Journal of the American Ceramic Society

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The ability of InTa1−xVxO4 (x=0, 0.002, 0.005, 0.01) and InTaO4−yNy (y=0, 0.048, 0.059) powders to photocatalyze the oxidative decomposition of gaseous 2‐propanol (IPA) when irradiated by the same number of visible or ultraviolet photons was confirmed. The first‐principle calculations of InTa0.875V0.125O8 indicated that the V 3d introduced state was discretely situated below the conduction band, which was composed mainly of Ta 5d. Similar calculations of InTaO3.5N0.5 indicated that the N 2p state was above the valence band, which was composed of O2p. These discrete narrow bands were responsible for the visible light sensitivity in the V‐ or N‐doped InTaO4 compounds.

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Photokatalytische Reduktion von CO₂ an TiO₂ und anderen Halbleitern

2013

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Der kontinuierliche Anstieg der Kohlendioxidkonzentration in der Atmosphäre sowie die zunehmende Ressourcenverknappung fossiler Brennstoffe vergrößern die Sorge um das Klima und die Energieversorgung der Zukunft. Eine Antwort auf beide Probleme liefert die mit Sonnenenergie betriebene photochemische Gewinnung von Brennstoffen wie Methan und Methanol aus CO2. Mit dieser Methode lässt sich Sonnenenergie zudem in chemischer Form speichern und transportieren. In diesem Aufsatz werden aktuelle Konzepte der photokatalytischen CO2‐Reduktion an TiO2 und anderen Metalloxiden, Oxynitriden, Sulfiden und Phosphiden präsentiert. Der Fokus der besprochenen Forschungsarbeiten liegt dabei meist auf der Entwicklung neuer nanostrukturierter photokatalytischer Materialien und mechanistischen Untersuchungen des Prozesses, von der Lichtabsorption über Ladungstrennung und ‐transport bis zu den Reaktionswegen der CO2‐Reduktion. Zudem werden die Effizienzmessgrößen, mit denen gegenwärtig die Effizienz des Prozesses quantifiziert wird, ausführlich diskutiert.

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First-principles energy band calculation for undoped and N-doped InTaO4 with layered wolframite-type structure

Cited by 28 publications

References 13 publications

A novel photocatalyst BiSbO4 for degradation of methylene blue

A novel photocatalyst BiSbO4 for degradation of methylene blue

Visible Light‐Sensitive InTaO₄‐Based Photocatalysts for Organic Decomposition

Photokatalytische Reduktion von CO₂ an TiO₂ und anderen Halbleitern

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First-principles energy band calculation for undoped and N-doped InTaO4 with layered wolframite-type structure

Cited by 28 publications

References 13 publications

A novel photocatalyst BiSbO4 for degradation of methylene blue

A novel photocatalyst BiSbO4 for degradation of methylene blue

Visible Light‐Sensitive InTaO4‐Based Photocatalysts for Organic Decomposition

Photokatalytische Reduktion von CO2 an TiO2 und anderen Halbleitern

Contact Info

Product

Resources

About

Visible Light‐Sensitive InTaO₄‐Based Photocatalysts for Organic Decomposition

Photokatalytische Reduktion von CO₂ an TiO₂ und anderen Halbleitern