Double-shelled hollow rods assembled from nitrogen/sulfur-codoped carbon coated indium oxide nanoparticles as excellent photocatalysts

Liming Sun, Rong Li, Wenwen Zhan, Yusheng Yuan, Xiaojun Wang, Xiguang Han () and Yanli Zhao ()
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Liming Sun: Jiangsu Normal University
Rong Li: Jiangsu Normal University
Wenwen Zhan: Jiangsu Normal University
Yusheng Yuan: Jiangsu Normal University
Xiaojun Wang: Jiangsu Normal University
Xiguang Han: Jiangsu Normal University
Yanli Zhao: Nanyang Technological University

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract Excellent catalytic activity, high stability and easy recovery are three key elements for fabricating efficient photocatalysts, while developing a simple method to fabricate such photocatalysts with these three features at the same time is highly challenging. In this study, we successfully synthesized double-shelled hollow rods (DHR) assembled by nitrogen (N) and sulfur (S)-codoped carbon coated indium(III) oxide (In2O3) ultra-small nanoparticles (N,S-C/In2O3 DHR). N,S-C/In2O3 DHR exhibits remarkable photocatalytic activity, high stability and easy recovery for oxidative hydroxylation reaction of arylboronic acid substrates. The catalyst recovery and surface area were well balanced through improved light harvesting, contributed by concurrently enhancing the reflection on the outer porous shell and the diffraction in the inside double-shelled hollow structure, and increased separation rate of photogenerated carriers. Photocatalytic mechanism was investigated to identify the main reactive species in the catalytic reactions. The electron separation and transfer pathway via N,S-codoped graphite/In2O3 interface was revealed by theoretical calculations.

Date: 2019
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DOI: 10.1038/s41467-019-10302-0

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