Application of organic membrane for generating hydroxyl radical and method for removing organic pollutant from water

A method for applying an organic membrane for generating a hydroxyl radical. The method comprises: using a nitrocellulose sheet as a photocatalytic material, placing the sheet in water, and exposing the sheet to natural sunlight or light from a sun lamp with a wavelength greater than 280 nm so as to produce the hydroxyl radical by means of a photochemical reaction on the surface of the sheet. The rate of hydroxyl radical generation can be realized by modulating a surface area of a film or an intensity of the light. The invention further discloses a method for using an organic film for generating a hydroxyl radical so as to remove organic pollutants from water. The hydroxyl radical produced using the method can effectively remove common organic pollutants such as phenol, bisphenol A, thiamphenicol, and the like from water. The method for generating the hydroxyl radical is simple, economic, and highly effective. The method does not require introduction of a hydroxyl radical precursor and the hydroxyl radical is generated on a surface of a solid film, and thus does not generate secondary pollution. The method can be used in the field of wastewater treatment.