Benzohydrazide Derivatives: Gelation and Application in Oil Spill Recovery

• Published in: Chemical research in Chinese universities Vol. 35; no. 5; pp. 874 - 878
• Main Authors: Zhang, Tianren, Zhang, Chunxue, Che, Xiangyang, Bai, Binglian, Li, Min, Wang, Haitao
• Format: Journal Article
• Language: English
• Published: Changchun Jilin University and The Editorial Department of Chemical Research in Chinese Universities 01.10.2019; Springer Nature B.V
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Diesel fuels; Emission analysis; Fourier transforms; Gelation; Gels; Hydrogen bonding; Inorganic Chemistry; Mechanical properties; Oil spills; Organic Chemistry; Physical Chemistry; Self-assembly; Van der Waals forces; Benzohydrazide derivative; Self-assembly; Oil spill recovery; Organogel
• ISSN: 1005-9040; 2210-3171
• DOI: 10.1007/s40242-019-9089-2

The synthesis and gelation properties of a series of organogelators containing a benzohydrazide unit and two alkoxy chains(oB n ) were reported herein. oB n ( 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 ′>10 5 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 oB n ( 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 oB n 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%.