Oil water separation material with ultraviolet light illumination controlled ultra hydrophobic-ultra hydrophilic conversion capacity

The invention discloses an oil water separation material with ultraviolet light illumination controlled ultra hydrophobic-ultra hydrophilic conversion capacity. The characteristics are that: SnO2 coated carbon fiber cloth is immersed in a mixed solution of octadecanethiol and ethanol of a certain concentration, is taken out from the mixed solution, and is dried at a certain temperature; octadecanethiol is adopted to reduce surface energy, and the obtained material possess both high separation efficiency and high circulation stability; after 1 to 3h of illumination under ultraviolet light, material ultra hydrophobicity is converted into ultra hydrophilicity, and at the same time, ultra lipophilicity is maintained; then the ultra hydrophilic lipophilic material is stored at a darkroom for 1day or longer, the ultra hydrophilicity is converted into ultra hydrophobicity; and especially, equipment such as a mechanical pump is adopted, the oil water separation material can be used for selective high-efficiency rapid