Issue 8, 2013
From the journal:

Catalysis Science & Technology

Efficient hydrogen production and photocatalytic reduction of nitrobenzene over a visible-light-responsive metal–organic framework photocatalyst†

Takashi Toyao,a   Masakazu Saito,a   Yu Horiuchi,*a   Katsunori Mochizuki,b   Masatoshi Iwata,b   Hideyuki Higashimurab  and  Masaya Matsuoka*a  

* Corresponding authors

a Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
E-mail: horiuchi@chem.osakafu-u.ac.jp, matsumac@chem.osakafu-u.ac.jp
Fax: +81-72-254-9910
Tel: +81-72-254-9288

b Advanced Materials Research Laboratory, Sumitomo-Chemical Co., Ltd., 6, Kitahara, Tsukuba, Ibaraki 300-3294, Japan

Abstract

Efficient hydrogen production and photocatalytic reduction of nitrobenzene were achieved by using a Pt-deposited amino-functionalised Ti(IV) metal–organic framework (Pt/Ti-MOF-NH2) under visible-light irradiation. XRD and N2 adsorption measurements revealed that crystalline microporous structures were formed and maintained even after the Pt deposition. The photocatalytic activity for the visible-light-promoted hydrogen production was improved through the optimization of the deposition amount of Pt as a cocatalyst. The optimised amount of Pt was determined to be 1.5 wt%. The results of in situ ESR measurements clearly indicate that the reaction proceeds through the electron transfer from the organic linker to deposited Pt as a cocatalyst by way of titanium-oxo clusters. In addition, the Pt/Ti-MOF-NH2 photocatalyst was found to catalyse photocatalytic reduction of nitrobenzene under visible-light irradiation. It was also confirmed that the catalyst can be reused at least three times without significant loss of its catalytic activity.

Graphical abstract: Efficient hydrogen production and photocatalytic reduction of nitrobenzene over a visible-light-responsive metal–organic framework photocatalyst

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Article information

DOI
https://doi.org/10.1039/C3CY00211J
Article type
Paper
Submitted
01 Apr 2013
Accepted
24 Apr 2013
First published
25 Apr 2013

Catal. Sci. Technol., 2013,3, 2092-2097

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Efficient hydrogen production and photocatalytic reduction of nitrobenzene over a visible-light-responsive metal–organic framework photocatalyst

T. Toyao, M. Saito, Y. Horiuchi, K. Mochizuki, M. Iwata, H. Higashimura and M. Matsuoka, Catal. Sci. Technol., 2013, 3, 2092 DOI: 10.1039/C3CY00211J

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