Issue 1, 2023

Cu and Si co-doping on TiO2 nanosheets to modulate reactive oxygen species for efficient photocatalytic methane conversion

Abstract

In this study, we successfully construct Cu and Si co-doped ultrathin TiO2 nanosheets. As confirmed by comprehensive characterizations, Cu and Si co-doping can rationally tailor the electronic structure of TiO2 to maneuver reactive oxygen species for effective photocatalytic methane conversion. In addition, this co-doping greatly enhances the utilization efficiency of photogenerated charges. Furthermore, it is revealed that Cu and Si co-doping can significantly boost the adsorption and activation of methane on TiO2 nanosheets. As a result, the optimized catalyst achieves a C2H6 production rate of 33.8 μmol g−1 h−1 with a selectivity of 88.4%. This work provides insights into nanocatalyst design toward efficient photocatalytic methane conversion into value-added compounds.

Graphical abstract: Cu and Si co-doping on TiO2 nanosheets to modulate reactive oxygen species for efficient photocatalytic methane conversion

Supplementary files

Article information

Article type
Communication
Submitted
30 Sept. 2022
Accepted
11 Nov. 2022
First published
11 Nov. 2022

Nanoscale Horiz., 2023,8, 63-68

Cu and Si co-doping on TiO2 nanosheets to modulate reactive oxygen species for efficient photocatalytic methane conversion

J. Ma, J. Low, D. Wu, W. Gong, H. Liu, D. Liu, R. Long and Y. Xiong, Nanoscale Horiz., 2023, 8, 63 DOI: 10.1039/D2NH00457G

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