Synthesis and photocatalytic properties of TiO2 and Pt pillared HCa2Nb3O10 doped with various rare earth ions

Tsugio Sato; Yasuhiko Fukugami

doi:10.1016/S0167-2738(01)00804-9

Synthesis and photocatalytic properties of TiO₂ and Pt pillared HCa₂Nb₃O₁₀ doped with various rare earth ions

Tsugio Sato, Yasuhiko Fukugami

Center for Exploration of New Inorganic Materials

Research output: Contribution to journal › Conference article › peer-review

20 Citations (Scopus)

Abstract

TiO₂ and Pt pillars were constructed in the interlayer of H_1-xCa_2-xLn_xNb₃O₁₀ (Ln = La, Nd, Eu, x = 0-0.75) by the stepwise intercalation reactions. The amounts of TiO₂ and Pt incorporated were 0.5-2.9 and 0.04-0.19 wt.%, respectively. The height of TiO₂ and Pt pillar was less than 0.5 nm. TiO₂ and/or Pt pillared compounds were capable of water cleavage into hydrogen and oxygen by the band gap irradiation without a sacrificial hole scavenger although no water cleavage proceeded by using H_1-xCa_2-xLn_xNb₃O₁₀ separately. The photocatalytic activity for water cleavage was in the order H_1-xCa_2-xLn_xNb₃O₁₀/Pt > H_1-xCa_2-xLn_xNb₃O₁₀/ (Pt, TiO₂) > H_1-xCa_2-xLn_xNb₃O₁₀/ TiO₂ and that of Pt pillared nanocomposite was in the order H_1-xCa_2-xLa_xNb₃O₁₀/Pt > H_1-xCa_2-xEu_xNb₃O₁₀/Pt > H_1-xCa_2-xNd_xNb₃O₁₀/Pt.

Original language	English
Pages (from-to)	397-405
Number of pages	9
Journal	Solid State Ionics
Volume	141-142
DOIs	https://doi.org/10.1016/S0167-2738(01)00804-9
Publication status	Published - 2001 May 1
Event	14th Intenational Symposium on the Reactivity of Solids - Budapest, Hungary Duration: 2000 Aug 27 → 2000 Aug 31

Keywords

HCaNbO
Photocatalysis
Pt pillar
TiO pillar

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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@article{e84c8f8da8084f2fa5b3763cdb07962c,

title = "Synthesis and photocatalytic properties of TiO2 and Pt pillared HCa2Nb3O10 doped with various rare earth ions",

abstract = "TiO2 and Pt pillars were constructed in the interlayer of H1-xCa2-xLnxNb3O10 (Ln = La, Nd, Eu, x = 0-0.75) by the stepwise intercalation reactions. The amounts of TiO2 and Pt incorporated were 0.5-2.9 and 0.04-0.19 wt.%, respectively. The height of TiO2 and Pt pillar was less than 0.5 nm. TiO2 and/or Pt pillared compounds were capable of water cleavage into hydrogen and oxygen by the band gap irradiation without a sacrificial hole scavenger although no water cleavage proceeded by using H1-xCa2-xLnxNb3O10 separately. The photocatalytic activity for water cleavage was in the order H1-xCa2-xLnxNb3O10/Pt > H1-xCa2-xLnxNb3O10/ (Pt, TiO2) > H1-xCa2-xLnxNb3O10/ TiO2 and that of Pt pillared nanocomposite was in the order H1-xCa2-xLaxNb3O10/Pt > H1-xCa2-xEuxNb3O10/Pt > H1-xCa2-xNdxNb3O10/Pt.",

keywords = "HCaNbO, Photocatalysis, Pt pillar, TiO pillar",

author = "Tsugio Sato and Yasuhiko Fukugami",

note = "Funding Information: This work was partly supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture.; 14th Intenational Symposium on the Reactivity of Solids ; Conference date: 27-08-2000 Through 31-08-2000",

year = "2001",

month = may,

day = "1",

doi = "10.1016/S0167-2738(01)00804-9",

language = "English",

volume = "141-142",

pages = "397--405",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

}

TY - JOUR

T1 - Synthesis and photocatalytic properties of TiO2 and Pt pillared HCa2Nb3O10 doped with various rare earth ions

AU - Sato, Tsugio

AU - Fukugami, Yasuhiko

N1 - Funding Information: This work was partly supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture.

PY - 2001/5/1

Y1 - 2001/5/1

N2 - TiO2 and Pt pillars were constructed in the interlayer of H1-xCa2-xLnxNb3O10 (Ln = La, Nd, Eu, x = 0-0.75) by the stepwise intercalation reactions. The amounts of TiO2 and Pt incorporated were 0.5-2.9 and 0.04-0.19 wt.%, respectively. The height of TiO2 and Pt pillar was less than 0.5 nm. TiO2 and/or Pt pillared compounds were capable of water cleavage into hydrogen and oxygen by the band gap irradiation without a sacrificial hole scavenger although no water cleavage proceeded by using H1-xCa2-xLnxNb3O10 separately. The photocatalytic activity for water cleavage was in the order H1-xCa2-xLnxNb3O10/Pt > H1-xCa2-xLnxNb3O10/ (Pt, TiO2) > H1-xCa2-xLnxNb3O10/ TiO2 and that of Pt pillared nanocomposite was in the order H1-xCa2-xLaxNb3O10/Pt > H1-xCa2-xEuxNb3O10/Pt > H1-xCa2-xNdxNb3O10/Pt.

AB - TiO2 and Pt pillars were constructed in the interlayer of H1-xCa2-xLnxNb3O10 (Ln = La, Nd, Eu, x = 0-0.75) by the stepwise intercalation reactions. The amounts of TiO2 and Pt incorporated were 0.5-2.9 and 0.04-0.19 wt.%, respectively. The height of TiO2 and Pt pillar was less than 0.5 nm. TiO2 and/or Pt pillared compounds were capable of water cleavage into hydrogen and oxygen by the band gap irradiation without a sacrificial hole scavenger although no water cleavage proceeded by using H1-xCa2-xLnxNb3O10 separately. The photocatalytic activity for water cleavage was in the order H1-xCa2-xLnxNb3O10/Pt > H1-xCa2-xLnxNb3O10/ (Pt, TiO2) > H1-xCa2-xLnxNb3O10/ TiO2 and that of Pt pillared nanocomposite was in the order H1-xCa2-xLaxNb3O10/Pt > H1-xCa2-xEuxNb3O10/Pt > H1-xCa2-xNdxNb3O10/Pt.

KW - HCaNbO

KW - Photocatalysis

KW - Pt pillar

KW - TiO pillar

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DO - 10.1016/S0167-2738(01)00804-9

M3 - Conference article

AN - SCOPUS:0035330513

VL - 141-142

SP - 397

EP - 405

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

T2 - 14th Intenational Symposium on the Reactivity of Solids

Y2 - 27 August 2000 through 31 August 2000

ER -