Preparation and application of pH-Responsive and high salt-tolerant silica-based amphiphilic Janus nanosheets for enhanced heavy oil recovery

Chi, Mingshuo; Hu, Jiayin; Wang, Xiaoyan; He, Runna; Wang, Zhikun; Li, Songyan; Hu, Songqing; Sun, Su-Qin

doi:10.1016/j.geoen.2023.212210

Cited by 4 publications

(1 citation statement)

References 49 publications

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“…Fortunately, modifying stimulus-responsive groups on NPs enables emulsification and demulsification processes upon stimulation, which effectively addresses the aforementioned issues. 6,7 Currently, several types of stimulus-responsive emulsifiers have been reported, including pH-responsive, 8–10 temperature-responsive, 11–13 CO 2 -responsive, 14–16 light-responsive, 17,18 mechanical-responsive, 19 magnetic-responsive, 20–22 REDOX-responsive 23,24 and multi-responsive. Among them, magnetic responsive emulsions have garnered widespread attention due to their advantages of low toxicity, simple operation, fast response speed, high reusability, and excellent controllability.…”

Section: Introductionmentioning

confidence: 99%

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe₃O₄ nanocomposites

Hu,

Chi,

et al. 2024

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe₃O₄ nanocomposites

Hu,

Chi,

et al. 2024

Phys. Chem. Chem. Phys.

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Stimuli‐Responsive Polymers for Engineered Emulsions

Rajbanshi,

Hilton,

Dreiss

et al. 2024

Macromol. Rapid Commun.

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Emulsions are complex. Dispersing two immiscible phases, thus expanding an interface, requires effort to achieve and the resultant dispersion is thermodynamically unstable, driving the system toward coalescence. Furthermore, physical instabilities, including creaming, arise due to presence of dispersed droplets of different densities to a continuous phase. Emulsions allow the formulation of oils, can act as vehicles to solubilize both hydrophilic and lipophilic molecules, and can be tailored to desirable rheological profiles, including “gel‐like” behavior and shear thinning. The usefulness of emulsions can be further expanded by imparting stimuli‐responsive or “smart” behaviors by inclusion of a stimuli‐responsive emulsifier, polymer or surfactant. This enables manipulation like gelation, breaking, or aggregation, by external triggers such as pH, temperature, or salt concentration changes. This platform generates functional materials for pharmaceuticals, cosmetics, oil recovery, and colloid engineering, combining both smart behaviors and intrinsic benefit of emulsions. However, with increased functionality comes greater complexity. This review focuses on the use of stimuli‐responsive polymers for the generation of smart emulsions, motivated by the great adaptability of polymers for this application and their efficacy as steric stabilizers. Stimuli‐responsive emulsions are described according to the trigger used to provide the reader with an overview of progress in this field.

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Recent advances in switchable surfactants for heavy oil production: A review

Li,

Liu,

Sun

et al. 2024

Energy Geoscience

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Preparation and application of pH-Responsive and high salt-tolerant silica-based amphiphilic Janus nanosheets for enhanced heavy oil recovery

Cited by 4 publications

References 49 publications

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe₃O₄ nanocomposites

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe₃O₄ nanocomposites

Stimuli‐Responsive Polymers for Engineered Emulsions

Recent advances in switchable surfactants for heavy oil production: A review

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Preparation and application of pH-Responsive and high salt-tolerant silica-based amphiphilic Janus nanosheets for enhanced heavy oil recovery

Cited by 4 publications

References 49 publications

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe3O4 nanocomposites

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe3O4 nanocomposites

Stimuli‐Responsive Polymers for Engineered Emulsions

Recent advances in switchable surfactants for heavy oil production: A review

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Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe₃O₄ nanocomposites

Multi-responsive Pickering emulsifiers: a comprehensive study on the emulsification–demulsification behavior of modified chitosan-coated Fe₃O₄ nanocomposites