Fluoride‐mediately oriented assembly of zirconia nanoparticles: 3D monocrystalline architectures and dye degradation

Nano subunits self‐assembly provides a powerful approach for creating unique architectures of relevance for applications. While the use of organic surfactants to direct the assembly of nanoparticles is most popular, it remains a challenge to manipulate the order‐assembly of a large number of nanopar...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2022-01, Vol.105 (1), p.55-60
Main Authors: Jing, Wenjia, Yang, Jianfeng
Format: Article
Language:English
Subjects:
absorbents
absorption
Adsorption
aggregates
Aqueous solutions
Assembly
Crystallography
Fluorides
Morphology
Nanoparticles
orientation
Performance degradation
photocatalysis
Photodegradation
Roasting
zirconia
Zirconium dioxide
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Summary:Nano subunits self‐assembly provides a powerful approach for creating unique architectures of relevance for applications. While the use of organic surfactants to direct the assembly of nanoparticles is most popular, it remains a challenge to manipulate the order‐assembly of a large number of nanoparticles along desirable facets. Here, we describe a fluoride‐mediately solvothermal approach for building 3D monocrystalline ZrO2 architectures through oriented attach of ZrO2 nanoparticles in three dimensions, the preferential adsorption of fluoride on specific crystallographic planes may be critical to promoting the oriented aggregation of ZrO2 nanoparticles along rigid directions. After calcination, the dense monocrystalline architectures are transformed into porous monocrystalline structures with inherited morphology, uniform and well‐dispersed open pores. The sample before calcination exhibits a better performance in photocatalytic degradation of conge red in aqueous solution, while the sample after calcination shows a better adsorption effect in dark, the mechanism is discussed in detail.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.18095