Intercalation of iron oxide in layered H2Ti4O9 and H4Nb6O17: Visible-light induced photocatalytic properties

Tsugio Sato; Yoshaka Yamamoto; Yoshinobu Fujishiro; Satoshi Uchida

doi:10.1039/ft9969205089

Intercalation of iron oxide in layered H₂Ti₄O₉ and H₄Nb₆O₁₇: Visible-light induced photocatalytic properties

Tsugio Sato, Yoshaka Yamamoto, Yoshinobu Fujishiro, Satoshi Uchida

Research output: Contribution to journal › Article › peer-review

95 Citations (Scopus)

Abstract

H₂Ti₄O₉/Fe₂O ₃·nH₂O and H₄Nb₆O₁₇/Fe₂O ₃·nH₂O nanocomposites containing intercalated Fe₂O₃·nH₂O, particles of <1 nm thickness, were fabricated by the photochemical decomposition of [Fe₃(CH₃CO₂)₇(OH)·H ₂O)]⁺ incorporated in the interlayer of H₂Ti₄O₉ and H₄Nb₆O₁₇. Both nanocomposites were capable of hydrogen evolution to the extent of 8.1-8.7 cm³ over 5 h, following irradiation with visible light (λ > 400 nm) from a 450 W Hg lamp in the presence of Na₂SO₃ as a sacrificial donor. The hydrogen production activity of these nanocomposites was superior to that of unsupported Fe₂O₃·nH₂O. The hydrogen production was enhanced to 11.3-13.6 cm³ over 5 h by doping Pt together with Fe₂O₃·nH₂O in the interlayer. Hydrogen evolution was linear with time with the niobate system being slightly more efficient.

Original language	English
Pages (from-to)	5089-5092
Number of pages	4
Journal	Journal of the Chemical Society - Faraday Transactions
Volume	92
Issue number	24
DOIs	https://doi.org/10.1039/ft9969205089
Publication status	Published - 1996 Dec 21

ASJC Scopus subject areas

Physical and Theoretical Chemistry

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10.1039/ft9969205089

Cite this

@article{b7ac28b4a584423b86c2effdb4015551,

title = "Intercalation of iron oxide in layered H2Ti4O9 and H4Nb6O17: Visible-light induced photocatalytic properties",

abstract = "H2Ti4O9/Fe2O 3·nH2O and H4Nb6O17/Fe2O 3·nH2O nanocomposites containing intercalated Fe2O3·nH2O, particles of <1 nm thickness, were fabricated by the photochemical decomposition of [Fe3(CH3CO2)7(OH)·H 2O)]+ incorporated in the interlayer of H2Ti4O9 and H4Nb6O17. Both nanocomposites were capable of hydrogen evolution to the extent of 8.1-8.7 cm3 over 5 h, following irradiation with visible light (λ > 400 nm) from a 450 W Hg lamp in the presence of Na2SO3 as a sacrificial donor. The hydrogen production activity of these nanocomposites was superior to that of unsupported Fe2O3·nH2O. The hydrogen production was enhanced to 11.3-13.6 cm3 over 5 h by doping Pt together with Fe2O3·nH2O in the interlayer. Hydrogen evolution was linear with time with the niobate system being slightly more efficient.",

author = "Tsugio Sato and Yoshaka Yamamoto and Yoshinobu Fujishiro and Satoshi Uchida",

year = "1996",

month = dec,

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doi = "10.1039/ft9969205089",

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T1 - Intercalation of iron oxide in layered H2Ti4O9 and H4Nb6O17

T2 - Visible-light induced photocatalytic properties

AU - Sato, Tsugio

AU - Yamamoto, Yoshaka

AU - Fujishiro, Yoshinobu

AU - Uchida, Satoshi

PY - 1996/12/21

Y1 - 1996/12/21

N2 - H2Ti4O9/Fe2O 3·nH2O and H4Nb6O17/Fe2O 3·nH2O nanocomposites containing intercalated Fe2O3·nH2O, particles of <1 nm thickness, were fabricated by the photochemical decomposition of [Fe3(CH3CO2)7(OH)·H 2O)]+ incorporated in the interlayer of H2Ti4O9 and H4Nb6O17. Both nanocomposites were capable of hydrogen evolution to the extent of 8.1-8.7 cm3 over 5 h, following irradiation with visible light (λ > 400 nm) from a 450 W Hg lamp in the presence of Na2SO3 as a sacrificial donor. The hydrogen production activity of these nanocomposites was superior to that of unsupported Fe2O3·nH2O. The hydrogen production was enhanced to 11.3-13.6 cm3 over 5 h by doping Pt together with Fe2O3·nH2O in the interlayer. Hydrogen evolution was linear with time with the niobate system being slightly more efficient.

AB - H2Ti4O9/Fe2O 3·nH2O and H4Nb6O17/Fe2O 3·nH2O nanocomposites containing intercalated Fe2O3·nH2O, particles of <1 nm thickness, were fabricated by the photochemical decomposition of [Fe3(CH3CO2)7(OH)·H 2O)]+ incorporated in the interlayer of H2Ti4O9 and H4Nb6O17. Both nanocomposites were capable of hydrogen evolution to the extent of 8.1-8.7 cm3 over 5 h, following irradiation with visible light (λ > 400 nm) from a 450 W Hg lamp in the presence of Na2SO3 as a sacrificial donor. The hydrogen production activity of these nanocomposites was superior to that of unsupported Fe2O3·nH2O. The hydrogen production was enhanced to 11.3-13.6 cm3 over 5 h by doping Pt together with Fe2O3·nH2O in the interlayer. Hydrogen evolution was linear with time with the niobate system being slightly more efficient.

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