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Mesoporous Carbon Fabricated by Using Polydopamine Microspheres as Precursor for Effective Oil/Water Separation
JOM ( IF 2.1 ) Pub Date : 2020-10-09 , DOI: 10.1007/s11837-020-04397-w
Junkai Gao , Mouyuan Yang , Yan Chen , Yu Liu , Xuebin Li , Jiaqi Wang

Mesoporous carbon microspheres (MOCM) with large specific surface area have been developed using polydopamine microspheres (PDAM) synthesized by a biomimetic method as precursor. The PDAM preparation method has the merits of requiring mild conditions and simple operation and being environmentally friendly; MOCM were fabricated using a simple method involving pyrolyzation of PDAM. Different techniques, such as scanning electron microscopy, transmission electron microscopy, x-ray diffraction analysis, Brunauer–Emmett–Teller measurements, and x-ray photoelectron spectroscopy, were applied to characterize the MOCM, and the results showed that MOCM exhibited favorable hydrophobicity and excellent lipophilicity. The pump oil and lubricating oil adsorption capacity of MOCM could reach 12 g g−1 and 11.5 g g−1, respectively, and the reusability study indicated that, after eight cycles, the lubricating-oil adsorption capacity of the regenerated MOCM could still remain at 95.7%. All results demonstrated that the MOCM exhibited excellent performance for separation of oil from water.



中文翻译:

以聚多巴胺微球为前驱体制备中孔碳,有效分离油水

使用通过仿生方法合成的聚多巴胺微球(PDAM)作为前体,已经开发出具有大比表面积的中孔碳微球(MOCM)。PDAM的制备方法具有条件温和,操作简单,环境友好的优点。使用涉及PDAM热解的简单方法制造MOCM。扫描电镜,透射电镜,X射线衍射分析,Brunauer-Emmett-Teller测量和X射线光电子能谱等不同技术用于表征MOCM,结果表明MOCM表现出良好的疏水性和极好的亲脂性。MOCM的泵油和润滑油吸附能力分别达到12 g g -1和11.5 g g-1,可重复使用性研究表明,经过八个循环后,再生的MOCM的润滑油吸附能力仍然可以保持在95.7%。所有结果表明,MOCM表现出优异的油与水分离性能。

更新日期:2020-10-11
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