Abstract

The hybrid nanocrystals of zinc oxide (ZnO), cadmium oxide (CdO) and copper oxide (CuO) were self-assembled to the nanospheres with special structure in the process of inverse Pickering miniemulsion. The 3-(methacryloxy) propyltrimethoxysilane (MPS) was used to modify the crystalline nanoparticles to obtain the partial hydrophobicity on their surfaces. The influences of the dosage ratio of MPS to the crystalline nanoparticles on the size distribution and surface hydrophobicity of modified nanoparticles were discussed. The modified ZnO, CdO and CuO nanocrystals as solid emulsifiers were self-assembled into four kind structure of nanospheres by inverse Pickering miniemulsion. The dosage usage, the three-phase contact angle and their initial dispersion positions of the modified nanocrystals codetermined the structure of hybrid oxide nanocrystals. The nanospheres of hybrid oxide nanocrystal will be successfully prepared by inverse Pickering miniemulsion; they provide the distinctively photoelectric properties.

摘要

氧化锌(ZnO)、氧化镉(CdO)和氧化铜(CuO)杂化纳米晶在反皮克林细乳液过程中自组装成具有特殊结构的纳米球。3-(甲基丙烯酰氧基)丙基三甲氧基硅烷 (MPS) 用于修饰结晶纳米粒子以获得其表面的部分疏水性。讨论了MPS与结晶纳米粒子的用量比对改性纳米粒子尺寸分布和表面疏水性的影响。改性ZnO、CdO和CuO纳米晶作为固体乳化剂,采用反Pickering细乳液自组装成四种结构的纳米球。改性纳米晶的用量、三相接触角及其初始分散位置共同决定了杂化氧化物纳米晶的结构。反Pickering细乳液成功制备混合氧化物纳米晶纳米球；它们具有独特的光电特性。