Superhydrophobic Methylated Silica Sol for Effective Oil-Water Separation.

ABSTRACT: Superhydrophobic methylated silica with a core-shell structure was successfully fabricated by a sol-gel process. First, a pristine silica gel with an average particle size of ca. 110 nm was prepared, using tetraethylorthosilicate (TEOS) as a precursor, ethanol as a solvent, and NH4OH as a catalyst. Then, the superhydrophobic methylated silica sol was prepared by introducing methyltrimethoxysilane (MTMS), to graft the surface of the pristine silica gel with methyl groups. The structure and morphology of the methylated silica sol were characterized by Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FE-SEM), and transmission electron microscope (TEM). The characterization results showed that methyl groups were successfully grafted onto the surface

SUBMITTER: Li J 

PROVIDER: S-EPMC7078611 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature