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Formation Mechanism of Zinc Oxalate Particles in the Internal Aqueous Droplets of Emulsion Liquid Membrane
Release time:2019-03-09 Hits:
Indexed by: 期刊论文
First Author: Zhao, Rui
Correspondence Author: He, GH (reprint author), Dalian Univ Technol, R&D Ctr Membrane Sci & Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
Co-author: Li, Xiangcun,Zhang, Xiaodan,Xu, Jiping,He, Gaohong,Dong, Chunxu,Jiang, Xiaobin
Date of Publication: 2014-10-01
Journal: JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
Included Journals: SCIE、EI
Document Type: J
Volume: 35
Issue: 10
Page Number: 1369-1377
ISSN No.: 0193-2691
Key Words: aggregation mechanism; emulsion liquid membrane; heterojunction; surfactant adsorption; zinc oxide
Abstract: We have investigated the formation and evolution of zinc oxalate particles in internal aqueous droplets and their effects of emulsion interface properties. The formation of particles follows an aggregation-controlled mechanism that depends on the size of droplets and surfactant. The size of droplets determines the final shape of the particles by affecting the supersaturation ratio to form rod-like and sheet-like particles. The surfactant adsorbed on the particles changes the wettability, leading to the aggregation of the primary particles at the internal water-oil interface. Moreover, the adsorption can cause a higher level of impurity and defects in as-synthesized particles. This effect could be directly employed to fabricate heterojunction rectifier.
Translation or Not: no