Abstract
Organic–inorganic hybrid gels were synthesized by the condensation of a linear aliphatic diol (1,8-octanediol) and altering the chain length of the alkyltriethoxysilanes (from ethyltriethoxysilane to hexadecyltrimethoxysilane) through a bulk polymerization process without using any initiator, activator, catalyst, or solvent for the selective removal of oils from water. Fourier transform infrared spectroscopy (FTIR) and solid-state 13C and 29Si cross-polarization magic-angle spinning nuclear magnetic resonance (CPMAS NMR) were used for the structural analysis of hybrid gels. Thermal properties of the hybrid gels were determined by thermogravimetric analysis (TGA). Oil absorbency of organic–inorganic hybrid gels was determined by oil absorption tests. The results showed that hybrid gels have high and fast absorption capacities and excellent reusability. Good selectivity, high thermal stability, low density, and excellent recyclability for the oil removal give the material potential applications.
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We thank the Scientific and Technological Research Council of Turkey-TUBITAK for the support of this work through Grant TBAG/111T098 and the Turkish Petroleum Refineries Co. for obtaining crude oil samples.
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Ozan Aydin, G., Bulbul Sonmez, H. Organic–inorganic hybrid gels for the selective absorption of oils from water. Environ Sci Pollut Res 23, 11695–11707 (2016). https://doi.org/10.1007/s11356-016-6342-9
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DOI: https://doi.org/10.1007/s11356-016-6342-9