Solvothermal synthesis for thermoplastic phenolic-based carbon gels with superhydrophobicity
Thermoplastic phenolic-based gels(TPGs)were successfully synthesized under solvothermal condition via optimizing four factors including hexamethylenetetramine(HMTA)content,phenolic concentration,solvent and reaction temperature.The TPGs can be easily converted into thermoplastic phenolic-based carbon gels(TPCGs)after carbonization.The obtained TPCGs are highly porous and exhibit 3D coral-like microstructures composing of abundant carbonaceous nano-nodules.Tests indicate that the TPCGs are typical amorphous carbon material,having a specific surface area of 197.5 m2/g and pore sizes mainly ranging from 1 to 5 nm.Besides,the TPCGs show excellent superhydrophobic property and high organic liquids adsorption capacity,making it a good candidate for oils ad-sorbent.This work has provided a new and effective method to synthesize carbon gels.
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