Cationic Nanocellulose Membrane Interfaces for Advanced Colloidal Systems in Oil Purification
발표자
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초록
내용
To develop an advanced colloidal system that capitalizes on interfacial electrostatic adsorption of cationic species, our method utilizes high-aspect-ratio cationic nanocellulose (HNC+). HNC+ with exceptionally large contact area forms a robust, permeable interfacial membrane through close-packing, resulting in a favorable geometric energy configuration that overcomes the disruptive image charge repulsion force. To demonstrate the electrostatic attraction between HNC+ and the electron-rich O/W interface, we investigate changes in the interfacial hydrogen bonding distribution using Raman spectroscopy and the work of adhesion of cationic moieties to the interface. The engineered HNC+-mediated interface serves as a microreactor system for the catalytic oxidation and removal of thiophene contaminants in crude oil. This approach offers potential applications in oil purification and interfacial chemistry, leveraging cationic nanocellulose to create functional and responsive interfaces.