Abstract: A high-efficiency catalyst ionic liquid silica-bismuth photocatalyst (BiSiOClI-IL) was prepared by use silylated ionic liquids for the degradation of chlorfenurea (FCF) pollutants was designed. Comprehensive experiments based on the ionic liquid silica-bismuth photocatalyst and its adsorption for the degradation of chlorfenurea in water were developed, including the synthesis of the ionic liquid silica-bismuth photocatalyst using silylated ionic liquids, the characterization of the photocatalyst, and the research on its catalytic performance. By optimizing the conditions, the optimal preparation parameters were determined as the reaction temperature of 80 ℃, basic bismuth nitrate: silanized ionic liquid: potassium iodide 3∶3∶1 (n/n/n), pH 9. The photocatalyst synthesized under a series of conditions was characterized by XRD, SEM, TEM, N₂ physical adsorption and other means. The specific surface area of the photocatalyst was 21.2 m²·g⁻¹, and the removal rate was 99%. The comprehensive experiment involves physical chemistry, material chemistry, instrument analysis and other course knowledge, which is helpful to exercise students 'experimental operation ability, cultivate students 'creative thinking, and provide certain reference value for the removal of organochlorine pollutants.