关键词: 二氧化钛-氧化石墨烯, 复合材料, 吸附, 苯酚

Abstract: A new type  of TiO_2-graphene oxide (TiO₂-GO) composite was prepared by  one-pot ultrasonic reflux method，and its structure was characterized by X-ray diffraction (XRD)， infrared spectrum (IR) and Raman spectrum, and  the removal effect of the material as an adsorbent on phenol wastewater was studied at different pH values， adsorption temperature， adsorption time and initial mass concentration of the solution. The experimental results show that when the mass concentration of  phenol solution is 400 mg/L， the adsorption capacity of phenol is 80 mg/g at room temperature with  pH=5. The adsorption process is  in accordance with the Langmuir model， and the kinetic experimental data are in accordance with the quasi-second\|order kinetic curves.  TiO₂-GO  can effectively purify phenol wastewater within 30 min， which has a certain  application prospect.

Key words: titanium dioxide-graphene oxide, composite, adsorption, phenol