Recent Advances in the Quantification and Modulation of Hydrophobic Interactions for Interfacial Applications
Recent Advances in the Quantification and Modulation of Hydrophobic Interactions for Interfacial Applications
复制标题
界面应用中疏水相互作用的定量和调节的最新进展
DOI：
10.1021/acs.langmuir.9b03573
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发表时间：
2020
期刊：
影响因子：
3.9
通讯作者：
Hongbo Zeng
中科院分区：
文献类型：
--
作者：
Lei Xie;Xin Cui;Lu Gong;Jingsi Chen;Hongbo Zeng
疏水相互作用是导致各种胶体现象的原因，这也在实现广泛的界面应用所需的特性和功能方面起着关键作用。在这篇专题文章中，我们最近在不同材料体系中固体/水和空气/水界面疏水相互作用的定量和调制方面取得了进展。基于疏水性聚合物（例如，聚苯乙烯），提出了一个三区疏水相互作用模型，该模型能满意地涵盖不同范围的疏水相互作用。此外，原子力显微镜（AFM）结合各种技术，如胶体探针，电化学过程，和力映射从不同的角度来量化的疏水相互作用。对于涉及可变形气泡的疏水相互作用，利用气泡探针原子力显微镜结合反射干涉衬度显微镜（RICM），同时测量了水介质中气泡与疏水化云母表面之间的相互作用力和薄膜排水过程的时空演化.对气泡与自组装单分子膜（SAMs）相互作用的研究表明，疏水相互作用的范围并不总是随着相互作用表面的疏水性单调增加，如由静态水接触角表征的;即，具有相似疏水性的表面可以表现出不同范围的疏水相互作用，而具有不同疏水性的表面可以表现出相似范围的疏水相互作用。研究发现，疏水相互作用可以通过调节表面纳米结构和化学来调节。此外，在油介质中，水滴和被污染表面之间发现了类似于疏水相互作用的长程“亲水”吸引力，在此基础上，被污染涂层材料被设计用于油清洁、油/水分离和破乳。界面的应用，仍然存在的挑战，和未来的疏水相互作用的前景进行了讨论。
Hydrophobic interaction is responsible for a variety of colloidal phenomena, which also plays a key role in achieving the desired characteristics and functionalities for a wide range of interfacial applications. In this feature article, our recent advances in the quantification and modulation of hydrophobic interactions at both solid/water and air/water interfaces in different material systems have been reviewed. On the basis of surface forces apparatus (SFA) measurements of hydrophobic polymers (e.g., polystyrene), a three-regime hydrophobic interaction model that could satisfactorily encompass the hydrophobic interaction with different ranges was proposed. In addition, the atomic force microscope (AFM) coupled with various techniques such as the colloidal probe, the electrochemical process, and force mapping were employed to quantify the hydrophobic interaction from different perspectives. For the hydrophobic interactions involving deformable bubbles, the bubble probe AFM combined with reflection interference contrast microscopy (RICM) was used to simultaneously measure the interaction force and spatiotemporal evolution of the thin film drainage process between air bubbles and hydrophobized mica surfaces in an aqueous medium. The studies on the interactions of air bubbles with self-assembled monolayers (SAMs) demonstrated that the range of hydrophobic interactions does not always increase monotonically with the hydrophobicity of interacting surfaces as characterized by the static water contact angle; viz., surfaces with similar hydrophobicity can exhibit different ranges of hydrophobic interaction, while surfaces with different hydrophobicities can exhibit a similar range of hydrophobic interactions. It is found that the hydrophobic interaction can be modulated by tuning the surface nanoscale structure and chemistry. Moreover, the long-range “hydrophilic” attraction that resembles the hydrophobic interaction was discovered between water droplets and polyelectrolyte surfaces in an oil medium, on the basis of which polyelectrolyte coating materials were designed for oil cleaning, oil/water separation, and demulsification. The interfacial applications, remaining challenges, and future perspectives of hydrophobic interactions are discussed.