Benzohydrazide Derivatives: Gelation and Application in Oil Spill Recovery |
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Authors: | ZHANG Tianren ZHANG Chunxue CHE Xiangyang BAI Binglian LI Min WANG Haitao |
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Institution: | 1. Key Laboratory for Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130012, P. R. China;2. College of Physics, Jilin University, Changchun 130012, P. R. China |
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Abstract: | The synthesis and gelation properties of a series of organogelators containing a benzohydrazide unit and two alkoxy chains(oBn) were reported herein. oBn(n=8, 10, 12) could form stable gels in commercial fuels(e.g., diesel), which were characterized by low critical gelation concentrations(CGCs) and good mechanical properties (G'>105 Pa). The gelation process was further studied by field-emission scanning electron microscopy(FE-SEM), Fourier transform infrared spectroscopy(FTIR) and X-ray diffraction(XRD), etc. It was demonstrated that in these organogels, molecules self-assembled into fibrils 3D-network, where hydrogen bonding, van der Waals force and π-π interaction were confirmed as the driving forces. As compounds oBn(n=8, 10, 12) show very good gelation properties in diesel, their applications in oil spill treatment have also been tested. It was found that oBn could achieve rapid (<30 s) and effective oil removal at room temperature, being good candidates for oil spill treatment in the future. Also, the removal efficiency could be as high as 95%. |
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Keywords: | Benzohydrazide derivative Organogel Self-assembly Oil spill recovery |
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