Issue 23, 2017, Issue in Progress

La2Sn2O7 enhanced photocatalytic CO2 reduction with H2O by deposition of Au co-catalyst

Abstract

La2Sn2O7 (LSO) micro/nanospheres, synthesized by a hydrothermal method, exhibited photocatalytic performance for CO2 reduction. The evolution rate of the main reduction products (CH4 and CO) was 0.20 and 0.10 μmol h−1, respectively. Loading of Au co-catalyst over La2Sn2O7 efficiently enhanced the photocatalytic activity of CO2 reduction. The highest photocatalytic efficiency was obtained over 1 wt% Au/La2Sn2O7 with an apparent quantum yield (AQY) of 2.54%. Characterization techniques including SEM, TEM, XRD, XPS, DRS, PL, and electrochemical analysis were applied and the physicochemical properties of La2Sn2O7 and Au/La2Sn2O7 samples are discussed. A possible mechanism of photocatalytic CO2 reduction over Au/La2Sn2O7 is proposed.

Graphical abstract: La2Sn2O7 enhanced photocatalytic CO2 reduction with H2O by deposition of Au co-catalyst

Supplementary files

Article information

Article type
Paper
Submitted
18 Jan 2017
Accepted
21 Feb 2017
First published
02 Mar 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 14186-14191

La2Sn2O7 enhanced photocatalytic CO2 reduction with H2O by deposition of Au co-catalyst

S. Chen, B. Pan, L. Zeng, S. Luo, X. Wang and W. Su, RSC Adv., 2017, 7, 14186 DOI: 10.1039/C7RA00765E

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