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journal article·2019-02Open access

Highly Efficient Visible Light Catalysts Driven by Ti3+‐VO‐2Ti4+‐N3− Defect Clusters

Qingbo Sun, Shaoyang Zhang, David Cortie, Julien Langley, Nicholas Cox, Terry J. Frankcombe, Jie Gao, Hua Chen, Ray L. Withers, Felipe Kremer, Dehong Yu, Frank Brink, Wensheng Shi, Yun Liu

ChemNanoMat· Volume 5· Issue 2
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Abstract

Abstract Local defect structures play significant roles on material properties, but they are seriously neglected in the design, synthesis, and development of highly efficient TiO2‐based visible light catalysts (VLCs). Here, we take anatase TiO2 nanocrystals that contain (Ti3+, N3−) ions and have the complicated chemical formula of ( )( □z) as an example, and point out that the formation of Ti3+‐VO‐2Ti4+‐N3− local defect clusters is a key missing step for significantly enhancing VLC properties of host TiO2 nanocrystals. Experimental and theoretical investigations also demonstrate the emergent behaviors of these intentionally introduced defect clusters for developing highly efficient VLCs. This research thus not only provides highly efficient visible light catalysts for various practical applications but also addresses the significance of local defect structures on modifying material properties.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Advanced Nanomaterials in Catalysis · Nanocluster Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research School of Chemistry The Australian National University Canberra, Australian Capital Territory 2601 Australia

Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China

The Australian Nuclear Science and Technology Organisation Lucas Height New South Wales 2234 Australia

School of Physical Environmental and Mathematical Sciences University of New South Wales Canberra, Australian Capital Territory 2601 Australia

Analysis and Testing Centre for Inorganic Materials Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China

Centre for Advanced Microscopy. The Australian National University Canberra, Australian Capital Territory 2601 Australia

Funding

Australian Research Council

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