【摘 要】
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Surfaces with super-amphiphilicity have attracted tremendous interest for fundamental and applied research due to their special affinity to both oil and water.It is generally believed that 3D graphene
【机 构】
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Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation,Col
【出 处】
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2016年分析化学前沿国际研讨会及中美分析化学研讨会
论文部分内容阅读
Surfaces with super-amphiphilicity have attracted tremendous interest for fundamental and applied research due to their special affinity to both oil and water.It is generally believed that 3D graphenes are monoliths with strongly hydrophobic surfaces.Here,we demonstrate the preparation of a novel 3D super-amphiphilic(i.e.,highly hydrophilic and oleophilic)graphene-based assembly in a single-step using phytic acid acting as both a gelator and as a dopant.[1] The product shows both hydrophilic and oleophilic intelligence,and this overcomes the drawbacks of presently known hydrophobic 3D graphene assemblies.It can absorb water and oils alike.The utility of the new material was demonstrated by designing a heterogeneous catalytic system via incorporation of a zeolite into its amphiphilic 3D scaffold.The resulting bulk network is shown to enable efficient epoxidation of alkenes without prior addition of a co-solvent or stirring.This catalyst also can be recovered and re-used,thereby providing a clean catalytic process with simplified work-up.
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