Preparation of Superhydrophobic Superoleophilic Sponge and its Application in Water Pollution Control
In order to effectively treat oily wastewater and meet environmental requirements,a one pot hydrothermal method was used to prepare superhydrophobic superoleophilic PVA sponge material(STt@PVA).It can instantly absorb low viscosity organic solvents such as chloroform,n-hexadecane,and gasoline,and the adsorption time of high viscosity edible oil is about 20 seconds.The separation efficiency of n-hexadecane,gasoline,and chloroform is 98%,93%,and 86%,respectively.After 5 cycles,the adsorption efficiency of n-hexadecane and chloroform water mixture was above 83%,indicating that STt@PVA has excellent oil-water separation performance and recyclability.
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