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论文类型：期刊论文

发表时间：2014-10-01

发表刊物：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录刊物：SCIE、EI

卷号：35

期号：10

页面范围：1369-1377

ISSN号：0193-2691

关键字：aggregation mechanism; emulsion liquid membrane; heterojunction; surfactant adsorption; zinc oxide

摘要：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.