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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Nanodomains within bicontinuous silicone/water microemulsions retard TiO2 nanoparticle aggregation
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Nanodomains within bicontinuous silicone/water microemulsions retard TiO2 nanoparticle aggregation

机译:双连续有机硅/水微乳状液中的纳米域可延迟TiO2纳米粒子的聚集

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摘要

Nanoparticles of TiO2 are used in a variety of applications because of their high refractive index and photo catalytic behaviour. We report that both the interactions between the surfactant and titanium alkoxide and templating provided by a microemulsion significantly retard the formation of visible TiO2 aggregates. TiO2 nanoparticles (<30 nm) were prepared under mild, neutral conditions within water-in-oil and bicontinuous silicone microemulsions. The particles aggregated only slowly, as shown by UV absorption spectroscopy transmission electron microscopy, and particle sizing. Retarded particle growth is ascribed primarily to constricted domains provided by self-organization within a water/surfactant/silicone microemulsion. (C) 2016 Elsevier B.V. All rights reserved.
机译:TiO2纳米颗粒因其高折射率和光催化性能而被用于各种应用。我们报道表面活性剂和钛醇盐之间的相互作用以及由微乳液提供的模板显着阻碍了可见的TiO2聚集体的形成。在油包水和双连续硅氧烷微乳液中,在温和,中性条件下制备了TiO2纳米颗粒(<30 nm)。颗粒仅缓慢聚集,如紫外吸收光谱透射电子显微镜和颗粒尺寸所示。延迟的颗粒生长主要归因于在水/表面活性剂/硅氧烷微乳液中通过自组织作用提供的收缩区域。 (C)2016 Elsevier B.V.保留所有权利。

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