Photocatalytic properties of Pd/TiO2 nanosheets for hydrogen evolution from water splitting

Junjie Wu; Shuanglong Lu; Danhua Ge; Longzhu Zhang; Wei Chen; Hongwei Gu

doi:10.1039/C6RA10408H

Photocatalytic properties of Pd/TiO₂ nanosheets for hydrogen evolution from water splitting†

Junjie Wu,^a Shuanglong Lu,^a Danhua Ge,^a Longzhu Zhang,^b Wei Chen^bcd and Hongwei Gu*^a

* Corresponding authors

^a Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
E-mail: hongwei@suda.edu.cn
Fax: +86-512-65880905

^b National University of Singapore (Suzhou) Research Industrial Park, Jiangsu Prov. 215123, China

^c Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore

^d Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore

Abstract

The Pd/TiO₂ nanosheets were successfully prepared through a facile chemical reduction method via depositing various amounts of Pd nanoparticles onto TiO₂ nanosheets with a high percentage of exposed (001) facets. The chemical and physical properties of the samples were generally investigated using transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-visible spectra and photoluminescence spectra. The as-prepared Pd/TiO₂ nanosheets all showed an immensely improved photocatalytic activity for water splitting compared to pure anatase TiO₂ nanosheets, among which, the TiO₂ nanosheets decorated with 0.18 at% Pd NPs could provide the highest H₂ evolution rate of 3096 μmol g⁻¹ h⁻¹. In short, we had developed a simple method to improve the activity of anatase TiO₂ nanosheets with exposed (001) facets in photocatalytic water splitting, which might be one of the potential pathways to modify semiconductor materials in the catalytic field.

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DOI: https://doi.org/10.1039/C6RA10408H
Article type: Paper
Submitted: 22 Apr 2016
Accepted: 29 Jun 2016
First published: 01 Jul 2016

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RSC Adv., 2016,6, 67502-67508

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Photocatalytic properties of Pd/TiO₂ nanosheets for hydrogen evolution from water splitting

J. Wu, S. Lu, D. Ge, L. Zhang, W. Chen and H. Gu, RSC Adv., 2016, 6, 67502 DOI: 10.1039/C6RA10408H

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Photocatalytic properties of Pd/TiO₂ nanosheets for hydrogen evolution from water splitting†

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Photocatalytic properties of Pd/TiO₂ nanosheets for hydrogen evolution from water splitting

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