Facile Synthesis of Novel Magnetic Janus Graphene Oxide for Efficient and Recyclable Demulsification of Crude Oil-in-Water Emulsion

被引:0
|
作者
Xu, Yingbiao [1 ,2 ]
Cheng, Li [3 ]
Wang, Yefei [1 ]
Jia, Han [1 ]
机构
[1] China Univ Petr East China, Key Lab Unconvent Oil & Gas Dev, Minist Educ, Qingdao 266580, Peoples R China
[2] SINOPEC, Shengli Oilfield Co, Technol Inspect Ctr, Dongying 257000, Peoples R China
[3] Yangtze Univ, Sch Petr Engn, Wuhan 430100, Peoples R China
来源
MOLECULES | 2024年 / 29卷 / 14期
基金
中国国家自然科学基金;
关键词
crude oil-in-water emulsion; Fe3O4; magnetic demulsifier; recyclable demulsification; Janus graphene oxide; SEPARATION; NANOPARTICLES;
D O I
10.3390/molecules29143307
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Nanoparticles have been widely applied to treat emulsion-containing wastewater in the form of chemical demulsifiers, such as SiO2, Fe3O4, and graphene oxide (GO). Owing to their asymmetric structures and selective adsorption, Janus nanoparticles show greater application potential in many fields. In the present work, the novel magnetic Janus graphene oxide (MJGO) nanoparticle was successfully prepared by grafting magnetic Fe3O4 to the surface of the JGO, and its demulsifying ability to treat a crude oil-in-water emulsion was evaluated. The MJGO structure and its magnetic intensity were verified by Fourier-transform infrared spectra (FTIR), transmission electron microscopy (TEM), X-ray diffraction (XRD), and magnetization saturation (MS) tests. Compared with GO and JGO, MJGO displayed the superior efficiency (>96%) to demulsify the crude oil-in-water emulsion, which can be attributed to the reduced electrostatic repulsion between MJGO and the emulsion droplets. Furthermore, the effects of pH and temperature on the demulsification performance of MJGO were also studied. Lastly, the recyclability of MJGO largely reduced the cost of demulsifiers in separating crude oil and water. The current research presents an efficient and recyclable demulsifier, which provides a new perspective for the structural design of nanomaterials and their application in the field of demulsification.
引用
收藏
页数:14
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