石墨烯
金属有机骨架
氧化物
乳状液
皮克林乳液
材料科学
复合数
微观结构
扫描电子显微镜
复合材料
化学工程
透射电子显微镜
傅里叶变换红外光谱
纳米技术
化学
冶金
有机化学
吸附
工程类
作者
Fanyu Zhang,Lifei Liu,Xiuniang Tan,Xinxin Sang,Jianling Zhang,Chengcheng Liu,Bingxing Zhang,Buxing Han,Guanying Yang
出处
期刊:Soft Matter
[The Royal Society of Chemistry]
日期:2017-01-01
卷期号:13 (40): 7365-7370
被引量:47
摘要
Herein we demonstrate the formation of a novel kind of Pickering emulsion that is stabilized by a Zr-based metal-organic framework (Zr-MOF) and graphene oxide (GO). It was found that the Zr-BDC-NO2 and GO solids assembling at the oil/water interface can effectively stabilize the oil droplets that are dispersed in the water phase. Such a Pickering emulsion offers a facile route for fabricating Zr-MOF/GO composite materials. After removing water and oil by freeze drying from Pickering emulsions, the Zr-MOF/GO composites were obtained and their morphologies, structures and interaction properties were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Fourier transform infrared spectrometry, respectively. The influences of the concentration of GO and Zr-MOF on the emulsion microstructures and the properties of the MOF/GO composites were studied. Based on experimental results, the mechanisms for the emulsion formation by Zr-MOF and GO and the as-synthesized superstructures of the Zr-MOF/GO composite were proposed. It is expected that this facile and tunable route can be applied to the synthesis of different kinds of MOF-based or GO-based composite materials.
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