1. Preparation and characterization of nano-demulsifier ZIF-8@CNTs based on MOFs for O/W emulsion demulsification.
- Author
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Zhang, Lin, Wei, Lixin, Jia, Xinlei, Geng, Xiaoheng, and Liu, Chao
- Subjects
DEMULSIFICATION ,INTERFACIAL tension ,SCANNING electron microscopy ,CARBON nanotubes ,INFRARED spectroscopy - Abstract
Oil in water (O/W) and water in oil (W/O) crude oil emulsions have caused many production safety hazards and environmental problems, which have attracted widespread attention. In this article, an amphiphilic nano demulsifier ZIF-8@CNTs was prepared by solvothermal method based on the metal-organic frameworks (MOFs) and carbon nanotubes (CNTs). Scanning electron microscopy (SEM) and infrared spectroscopy (FT-IR) showed that ZIF-8@CNTs were grape dendritic, and ZIF-8 was successfully combined with OX-CNTs. Thermogravimetric analysis (TGA) showed that ZIF-8@CNTs had good thermal stability. The demulsification test showed that the demulsification rate could reach 99.4% when ZC-1 was added at 500 mg/L for 30 min at room temperature. The demulsification mechanism was studied by interfacial tension and interfacial activity experiments. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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