Facile synthesis of flake-like dihydrate zinc oxalate particles

Xing Chen; Xin Liu; Kai Huang

doi:10.1007/s12613-019-1728-6

Volume 26 Issue 2

Feb. 2019

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文章导航 > 矿物冶金与材料学报（英文） > 2019 > 26(2): 234-240

Xing Chen, Xin Liu, and Kai Huang, Facile synthesis of flake-like dihydrate zinc oxalate particles, Int. J. Miner. Metall. Mater., 26(2019), No. 2, pp. 234-240. https://doi.org/10.1007/s12613-019-1728-6

Cite this article as:

Xing Chen, Xin Liu, and Kai Huang, Facile synthesis of flake-like dihydrate zinc oxalate particles, Int. J. Miner. Metall. Mater., 26(2019), No. 2, pp. 234-240. https://doi.org/10.1007/s12613-019-1728-6

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研究论文

Facile synthesis of flake-like dihydrate zinc oxalate particles

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Global Energy Research Institute, Future Science and Technology Park, Beijing 102211, China
Beijing Key Lab of Green Recycling and Extraction of Metals, University of Science and Technology Beijing, Beijing 100083, China

通讯作者:
Kai Huang E-mail: khuang@metall.ustb.edu.cn

中文摘要

Monodispersed dihydrated zinc oxalate (ZnC₂O₄·2H₂O) particles with characteristic morphology were synthesized by aging a mixed solution of zinc nitrate (Zn(NO₃)₂) and sodium oxalate (Na₂C₂O₄) in the presence of a citrate ligand, with an average flat size of approximately 10-15 μm. The important parameters, including the solution pH values and the concentration of the zinc ions and citrate ligand, were investigated using a series of experiments. It is verified that the citrate ligand significantly affects the morphology of zinc oxalate particles, probably via its multiple roles of chelating, dispersing, and selective absorption. Thermodynamic equilibrium of the distribution of zinc species in an aqueous solution of Zn(Ⅱ)-citrate-oxalate-H₂O was estimated to explain the experimental results and to clarify the size and morphological evolution mechanism of the precipitated particles.

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Research Article

Facile synthesis of flake-like dihydrate zinc oxalate particles

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Abstract

Abstract

Monodispersed dihydrated zinc oxalate (ZnC₂O₄·2H₂O) particles with characteristic morphology were synthesized by aging a mixed solution of zinc nitrate (Zn(NO₃)₂) and sodium oxalate (Na₂C₂O₄) in the presence of a citrate ligand, with an average flat size of approximately 10-15 μm. The important parameters, including the solution pH values and the concentration of the zinc ions and citrate ligand, were investigated using a series of experiments. It is verified that the citrate ligand significantly affects the morphology of zinc oxalate particles, probably via its multiple roles of chelating, dispersing, and selective absorption. Thermodynamic equilibrium of the distribution of zinc species in an aqueous solution of Zn(Ⅱ)-citrate-oxalate-H₂O was estimated to explain the experimental results and to clarify the size and morphological evolution mechanism of the precipitated particles.
- facile synthesis;
- zinc oxalate;
- flaky morphology;
- citrate ligand;
- one-pot synthesis

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Facile synthesis of flake-like dihydrate zinc oxalate particles

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Facile synthesis of flake-like dihydrate zinc oxalate particles

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