TiO2-GO复合材料对苯酚废水的吸附行为

采用一锅超声回流法制备一种新型的二氧化钛-氧化石墨烯（TiO₂-GO）复合材料， 通过X射线衍射（XRD）、红外光谱（IR）和 Raman光谱对其结构进行表征, 并研究溶液的pH值、 吸附温度、 吸附时间、 溶液的初始质量浓度对该材料作为吸附剂对苯酚废水去除效果的影响. 实验结果表明： 400 mg/L的苯酚溶液， 室温下， pH=5时，该材料对苯酚的吸附量为80 mg/g；吸附过程符合Langmuir模型，动力学实验数据符合准二级动力学曲线； TiO₂-GO可在30 min内有效净化苯酚废水，具有一定的应用前景.

Adsorption Behavior of GO-TiO2 Composites on Phenol Wastewater

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.