Amorphous Domains in Black Titanium Dioxide
Source abstract
Abstract
Abstract Although oxygen vacancies (Ovs) play a critical role for many applications of metal oxides, a controllable synthetic strategy for anisotropic Ovs remains a great challenge. Here, a novel strategy is proposed to achieve the regional dual structure with anisotropic Ovs at both the surface and in the interior of TiO2 by constructing amorphous domains. The as‐prepared black TiO2 with amorphous domains exhibits superior activity in degrading rhodamine B (RhB) solutions, which can instantly decompose RhB with just a shake. First‐principle simulations reveal that subsurface Ovs in TiO2 are energetically favored, resulting in the formation of amorphous domains in the interior region via diffusion of surface‐formed Ovs into the subsurface. The stable Ov‐induced amorphous domains in TiO2 with enhanced catalytic performances provide a scalable strategy to practical Ov engineering in functional metal oxides.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry Beijing Advanced Innovation Center for Biomedical Engineering Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology Beihang University Beijing 100191 China
Beijing Computational Science Research Center Beijing 100193 China
School of Physics Beihang University Beijing 100191 China
Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
Scientific Computing Department STFC UKRI Rutherford Appleton Laboratory Didcot OX11 0QX UK
School of Chemistry University of Southampton Highfield Southampton SO17 1BJ UK
Funding
National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality · National Postdoctoral Program for Innovative Talents
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