A facile additive-free method for tunable fabrication of UO2 and U3O8 nanoparticles in aqueous solution

Spherical UO 2 nanoparticles with an average diameter varying from 30 to 250 nm and U 3 O 8 nanocuboids with a width of 400 nm and a length of 1 μm have been successfully synthesized just by a simply additive-free hydrothermal synthesis method. To selectively obtain the phase-pure U 3 O 8 and UO 2 n...

Full description

Saved in:
Bibliographic Details
Published in:CrystEngComm 2014-01, Vol.16 (13), p.2645-2651
Main Authors: Zhao, Ran, Wang, Lin, Gu, Zhan-Jun, Yuan, Li-Yong, Xiao, Cheng-Liang, Zhao, Yu-Liang, Chai, Zhi-Fang, Shi, Wei-Qun
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Spherical UO 2 nanoparticles with an average diameter varying from 30 to 250 nm and U 3 O 8 nanocuboids with a width of 400 nm and a length of 1 μm have been successfully synthesized just by a simply additive-free hydrothermal synthesis method. To selectively obtain the phase-pure U 3 O 8 and UO 2 nanoparticles, the experimental conditions, such as the solution pH and temperature as well as the concentration of hydrazine, have been established and optimized. The products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In order to investigate the growth mechanism of the uranium oxide nanoparticles, XRD, SEM and Fourier transform infrared (FT-IR) spectrum measurements were carried out for the precursors prepared at different pH and hydrothermal time. The crucial factor for tunable fabrication of uranium oxide nanoparticles could come from the different reducing ability of hydrazine at various solution pH. We reported a facile additive-free method for tunable fabrication of UO 2 and U 3 O 8 nanoparticles by a hydrothermal treatment.
ISSN:1466-8033
1466-8033
DOI:10.1039/c3ce42140f