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- Title
Controllable Synthesis of α-Fe<sub>2</sub>O<sub>3</sub> Nanocubes with Size-Dependent Optical Performance.
- Authors
Chen, Lixia; Chen, Qianqian; Xue, Zhengyan; Liu, Shanshan; Wang, Shun; Xu, Sankui
- Abstract
The design and controllable synthesis of semiconductors at the nanoscale level is a critical strategy for adjusting the performance of catalysts. In this work, size-controlled α -Fe2O3 with nanocubic structure is fabricated through a simple solvothermal method. The growth process of cubic α -Fe2O3 nanocrystals is investigated by time-dependent solvothermal reaction experiments, which displays a typical Oswald ripening mechanism: flower-like nucleation, followed by growing and ripening of nuclei into different morphologies and sizes during the solvothermal process. The UV–vis absorption results revealed that α -Fe2O3 nanocubes present a size-dependent optical property. The α -Fe2O3-10h with an average particle size of 37 nm exhibits good crystallinity, large specific surface area and high UV–vis light absorption, subsequently resulting in the highest photocatalytic efficiency together with excellent stability. Size-controlled α-Fe2O3 nanocubes were synthesized through a simple solvothermal method. The growth process of cubic α-Fe2O3 nanocrystals was investigated, which displayed a typical Oswald ripening mechanism: flower-like nucleation, and subsequent ripening of nuclei into different shapes and sizes during the solvothermal process. The UV–vis absorption results revealed that α-Fe2O3 nanocubes exhibited size-dependent optical property.
- Subjects
FRUIT ripening; SEMICONDUCTOR synthesis; LIGHT absorption; OPTICAL properties; NUCLEATION; SURFACE area
- Publication
NANO, 2022, Vol 17, Issue 4, p1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292022500308