Title

Surface Reconstruction-Associated Partially Amorphized Bismuth Oxychloride for Boosted Photocatalytic Water Oxidation

Publication Name

ACS Applied Materials and Interfaces

Abstract

The molecule water activation is believed to be one of the most critical steps that is closely related to the proceeding of photoinduced reaction, such as overall water splitting, carbon dioxide conversion, and organic contaminant degradation. As metal oxides possessing a regular structure with high crystallinity are widely accepted as promising for effective catalysis, numerous studies have been devoted to the relevant photoinduced applications. However, their irregular derivative phases with lower crystallinity, which could exhibit tempting opportunities for catalytic activities, have long been ignored. Here, the surface-amorphized bismuth oxychloride is produced by homogeneous nanoparticle distribution through a rapid precipitation strategy. Comparing with its surface-crystallized counterpart, the partially amorphized bismuth oxychloride undergoes a fast surface reconstruction process under light irradiation, forming active surfaces with rich oxygen vacancies (OVs), leading to not only distinctive OV-mediated interfacial charge-transfer mechanisms with improved carrier dynamics but also robust water-surface interface with enhanced physical and chemical interaction, thus resulting in enhanced photocatalytic water oxidation. The strategy of optimizing by tuning the interfacial interaction behavior proposed in this work could broaden horizons for establishing more efficient partially amorphized energy conversion materials.

Open Access Status

This publication is not available as open access

Volume

13

Issue

4

First Page

5088

Last Page

5098

Funding Number

DE190100504

Funding Sponsor

Australian Research Council

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Link to publisher version (DOI)

http://dx.doi.org/10.1021/acsami.0c20338