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TiO2-Pd/C Composited Photocatalyst with Improved Photocatalytic Activity for Photoreduction of CO2 into CH4

Abstract

A novel Pd-modified TiO2 composited with carbon nanoparticles photocatalyst (TiO2-Pd/C) was synthesized via a sol-gel method. Characterized by XRD, Raman, BET, HRTEM, EDAX, XPS, absorption spectra and PL techniques, the introduced Pd existed as unique O-Pd-O species and C existed as the substance carbon nanoparticles on the surface of TiO2, behaving as a composited photocatalyst on nanoscale. Based on the experimental results and theoretical calculation, it is found that the introduction of O-Pd-O surface species and the carbon nanoparticles extend the absorption into the visible light region, facilitate the separation of photogenerated charge carriers, resulting in a much better photocatalytic activity on photo-reduction of CO2 into CH4 than TiO2-Pd and TiO2/C samples.

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Publication details

The article was received on 26 Nov 2016, accepted on 16 Mar 2017, published on 17 Mar 2017 and first published online on 17 Mar 2017


Article type: Paper
DOI: 10.1039/C6NJ03687B
Citation: New J. Chem., 2017, Accepted Manuscript
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    TiO2-Pd/C Composited Photocatalyst with Improved Photocatalytic Activity for Photoreduction of CO2 into CH4

    Y. Yu, W. Zheng and Y. Cao, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C6NJ03687B

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