Photocatalytic hydrogen evolution on dye-sensitized mesoporous carbon nitride photocatalyst with magnesium phthalocyanine - Details

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Abstract：

Spectral　sensitization　of　a　mesoporous　graphite　carbon　nitride　(mpg-C　3N4)　photocatalyst　was　investigated　by　depositing　magnesium　phthalocyanine　(MgPc)　to　expand　the　absorption　to　wavelengths　longer　than　those　of　the　principal　mpg-C3N4.　The　obtained　sample,　MgPc/Pt/mpg-C3N4　(Pt　as　a　cocatalyst)　showed　stable　photocatalytic　evolution　of　hydrogen　from　aqueous　solution　in　the　presence　of　sacrificial　reagents　(triethanolamine),　even　under　irradiation　at　wavelengths　longer　than　600　nm.　Increasing　the　amount　of　MgPc　led　to　ordered　MgPc　aggregation　on　the　photocatalyst　surfaces.　The　rate　of　photocatalytic　hydrogen　evolution　was　highest　on　a　sample　with　an　amount　of　MgPc　corresponding　to　a　monolayer　on　the　Pt/mpg-C3N4　photocatalyst　surface.　The　obtained　action　spectra　of　hydrogen　evolution　and　the　observation　that　the　amount　of　evolved　hydrogen　substantially　surpassed　the　amount　of　MgPc,　confirm　that　the　introduced　MgPc　functioned　as　a　photocatalytic　sensitizer.　©　2010　the　Owner　Societies.

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[ 1 ] [Takanabe, K.]Department of Chemical System Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-8656, Japan
[ 2 ] [Kamata, K.]Department of Chemical System Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-8656, Japan
[ 3 ] [Wang, X.]Colloid Chemistry, Max-Plank Institute of Colloids and Interfaces, 14424 Potsdam, Germany
[ 4 ] [Wang, X.]Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Antonietti, M.]Colloid Chemistry, Max-Plank Institute of Colloids and Interfaces, 14424 Potsdam, Germany
[ 6 ] [Kubota, J.]Department of Chemical System Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-8656, Japan
[ 7 ] [Domen, K.]Department of Chemical System Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-8656, Japan

Reprint 's Address：

[Domen, K.]Department of Chemical System Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-8656, Japan

Email：

domen@chemsys.t.u-tokyo.ac.jp

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Physical Chemistry Chemical Physics

ISSN： 1463-9076

Year： 2010

Issue： 40

Volume： 12

Page： 13020-13025

3 . 4 5 4

JCR@2010

2 . 9 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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