Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles

Shuang Huang; Hua-lan Xu; Sheng-liang Zhong; Lei Wang

doi:10.1007/s12613-017-1463-9

Volume 24 Issue 7

Jul. 2017

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文章导航 > 矿物冶金与材料学报（英文） > 2017 > 24(7): 794-803

Shuang Huang, Hua-lan Xu, Sheng-liang Zhong, and Lei Wang, Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles, Int. J. Miner. Metall. Mater., 24(2017), No. 7, pp. 794-803. https://doi.org/10.1007/s12613-017-1463-9

Cite this article as:

Shuang Huang, Hua-lan Xu, Sheng-liang Zhong, and Lei Wang, Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles, Int. J. Miner. Metall. Mater., 24(2017), No. 7, pp. 794-803. https://doi.org/10.1007/s12613-017-1463-9

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研究论文

Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles

College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
Analytical and Testing Center, Jiangxi Normal University, Nanchang 330022, China

通讯作者:
Sheng-liang Zhong E-mail: slzhong@jxnu.edu.cn

Lei Wang E-mail: wangleifly2006@126.com

中文摘要

Rare-earth stannate (Ln₂Sn₂O₇ (Ln=Y, La-Lu)) nanocrystals with an average diameter of 50 nm were prepared through a facile microwave hydrothermal method at 200℃ within 60 min. The products were well characterized. The effect of reaction parameters such as temperature, reaction time, pH value, and alkali source on the preparation was investigated. The results revealed that the pH value plays an important role in the formation process of gadolinium stannate (Gd₂Sn₂O₇) nanoparticles. By contrast, the alkali source had no effect on the phase composition or morphology of the final product. Uniform and sphere-like nanoparticles with an average size of approximately 50 nm were obtained at the pH value of 11.5. A possible formation mechanism was briefly proposed. Gd₂Sn₂O₇:Eu³⁺ nanoparticles displayed strong orange-red emission. Magnetic measurements revealed that Gd₂Sn₂O₇ nanoparticles were paramagnetic. The other rare-earth stannate Ln₂Sn₂O₇ (Ln=Y, La-Lu) nanocrystals were prepared by similar approaches.

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Research Article

Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles

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Abstract

Abstract

Rare-earth stannate (Ln₂Sn₂O₇ (Ln=Y, La-Lu)) nanocrystals with an average diameter of 50 nm were prepared through a facile microwave hydrothermal method at 200℃ within 60 min. The products were well characterized. The effect of reaction parameters such as temperature, reaction time, pH value, and alkali source on the preparation was investigated. The results revealed that the pH value plays an important role in the formation process of gadolinium stannate (Gd₂Sn₂O₇) nanoparticles. By contrast, the alkali source had no effect on the phase composition or morphology of the final product. Uniform and sphere-like nanoparticles with an average size of approximately 50 nm were obtained at the pH value of 11.5. A possible formation mechanism was briefly proposed. Gd₂Sn₂O₇:Eu³⁺ nanoparticles displayed strong orange-red emission. Magnetic measurements revealed that Gd₂Sn₂O₇ nanoparticles were paramagnetic. The other rare-earth stannate Ln₂Sn₂O₇ (Ln=Y, La-Lu) nanocrystals were prepared by similar approaches.
- microwave;
- hydrothermal synthesis;
- rare-earth stannate;
- nanoparticles

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Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles

中文摘要

Microwave hydrothermal synthesis and characterization of rare-earth stannate nanoparticles

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