Redox-Responsive Oil-In-Dispersion Emulsions Stabilized by Similarly Charged Ferrocene Surfactants and Alumina Nanoparticles,Langmuir

当前位置： X-MOL 学术 › Langmuir › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Redox-Responsive Oil-In-Dispersion Emulsions Stabilized by Similarly Charged Ferrocene Surfactants and Alumina Nanoparticles
Langmuir ( IF 3.7 ) Pub Date : 2020-11-23 , DOI: 10.1021/acs.langmuir.0c02350
Haojie Zhang ₁ , Jia Wu ₂ , Jianzhong Jiang ₁ , Zhenggang Cui ₁ , Wenshui Xia ₃

Affiliation

A redox-responsive oil-in-dispersion emulsion was developed by using a cationic ferrocene surfactant (FcCOC₁₀N) and Al₂O₃ nanoparticles, in which the required concentrations of FcCOC₁₀N and Al₂O₃ nanoparticles are as low as 0.001 mM (≈0.005 cmc) and 0.006 wt %, respectively. Rapid demulsification can be successfully achieved through a redox trigger, resulting from the transition of FcCOC₁₀N from a normal cationic surfactant form into a strongly hydrophilic Bola type form (Fc⁺COC₁₀N). Moreover, Fc⁺COC₁₀N together with the particles almost resides in the aqueous phase and can be recovered after the reduction reaction. Not only the amount of surfactant and nanoparticles are significantly reduced but also the emulsifier (surfactant and alumina) can be recycled and reused from the aqueous phase, which is a sustainable and economical strategy for various applications.

中文翻译：

相似电荷的二茂铁表面活性剂和氧化铝纳米粒子稳定的氧化还原反应型分散油乳液

通过使用阳离子二茂铁表面活性剂（FcCOC ₁₀ N）和Al ₂ O ₃纳米颗粒开发了氧化还原响应型分散油乳液，其中所需的FcCOC ₁₀ N和Al ₂ O ₃纳米颗粒的浓度低至0.001 mM（≈0.005cmc）和0.006 wt％。FcCOC ₁₀ N从正常的阳离子表面活性剂形式转变为强亲水的Bola型形式（Fc ⁺ COC ₁₀ N）可以通过氧化还原引发剂成功实现快速破乳。此外，Fc ⁺ COC ₁₀N与颗粒几乎一起存在于水相中，并且可以在还原反应之后被回收。不仅表面活性剂和纳米颗粒的量大大减少，而且乳化剂（表面活性剂和氧化铝）也可以从水相中回收和再利用，这对于各种应用而言是一种可持续且经济的策略。

更新日期：2020-12-08

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11