▎ 摘　　要

NOVELTY - Preparing adsorbent involves mixing n-butyl titanate with graphene oxide dispersion liquid gradually. The obtained mixture is heated at 50-55 degrees C, and graphene oxide dispersion liquid is added gradually in 3-4hours. The graphene oxide dispersion liquid is mixed with n-butyl titanate in ratio of 1:75. The temperature of the obtained mixture is increased to 80-85 degrees C at 9.8-10.2 pH. The obtained mixture is added with 20-40mg/mL aqueous solution of polyethyleneimine gradually. The polyethyleneimine and obtained mixture are mixed in ratio of 3:1. The obtained reaction mixture is kept for 1 day. USE - Method for preparing adsorbent (claimed) for absorbing organic pollutants. ADVANTAGE - The method enables to prepare adsorbent that has good adsorption performance, large adsorption area and good application prospects, and is automatic. DETAILED DESCRIPTION - Preparing adsorbent involves mixing n-butyl titanate with graphene oxide dispersion liquid gradually. The obtained mixture is heated at 50-55 degrees C, and graphene oxide dispersion liquid is added gradually in 3-4hours. The graphene oxide dispersion liquid is mixed with n-butyl titanate in ratio of 1:75. The temperature of the obtained mixture is increased to 80-85 degrees C at 9.8-10.2 pH. The obtained mixture is added with 20-40mg/mL aqueous solution of polyethyleneimine gradually. The polyethyleneimine and obtained mixture are mixed in ratio of 3:1. The obtained reaction mixture is kept for 1 day at room temperature. The obtained precipitate is washed to get neutral pH, and then freeze-dried to obtain product i.e. adsorbent.