Characterization and Optical Properties of Three Dimensional (3D) CeO2 Microstructures Synthesized by a Template-Free Method
- Authors: Bo Yu 1, Wang L.2, Meng F.1, Qin R.1
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Affiliations:
- School of Physics and Materials Science, Anhui University
- The Ministry of Basic, Anhui Sanlian University
- Issue: Vol 92, No 13 (2018)
- Pages: 2765-2773
- Section: Physical Chemistry of Nanoclusters and Nanomaterials
- URL: https://bakhtiniada.ru/0036-0244/article/view/170297
- DOI: https://doi.org/10.1134/S0036024418130046
- ID: 170297
Cite item
Abstract
Three dimensional (3D) of CeO2 nanostructures such as convex lens-like, hollow triangular prism, broccolilike, grapelike CeO2 have been successfully synthesized by cerium carbonate hydroxide (CeOHCO3) precursors, which were prepared by a hydrolysis process followed by a facile hydrothermal method without using any template or surfactant. The influence of urea amount on CeO2 nanostructures was discussed. The synthesizing mechanism and the morphological evolution of CeOHCO3 and CeO2 were proposed. The CeO2 samples were examined by XRD, SEM, TEM, UV–Vis, PL, and Raman scattering. The UV–Vis absorption spectrum of the CeO2 samples showed that the band gap energy (Eg) in rang of 2.6–2.9 eV, which is lower than that of bulk ceria.
Keywords
About the authors
Bo Yu
School of Physics and Materials Science, Anhui University
Email: mrmeng@ahu.edu.cn
China, Hefei, 230601
Leini Wang
The Ministry of Basic, Anhui Sanlian University
Email: mrmeng@ahu.edu.cn
China, Hefei, 230601
Fanming Meng
School of Physics and Materials Science, Anhui University
Author for correspondence.
Email: mrmeng@ahu.edu.cn
China, Hefei, 230601
Rui Qin
School of Physics and Materials Science, Anhui University
Email: mrmeng@ahu.edu.cn
China, Hefei, 230601
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