糠醇基介孔碳对水中双酚A的吸附性能研究

采用3种多孔碳材料C-1、C-2和C-3对双酚A进行静态吸附实验,选用具有集中介孔分布、比表面积较大的C-3在不同温度和pH条件下对双酚A进行吸附。结果表明,当双酚A初始质量浓度为60 mg/L、温度为30℃时,C-3对双酚A的饱和吸附量达到279.4 mg/g。在相同条件、等电点附近,C-3对双酚A的去除率达到最大值47.4%,饱和吸附量达到284.5 mg/g。C-3对双酚A的吸附遵循拟二级动力学方程。

Study on the adsorption capacity of furfuryl alcohol based mesoporous carbon for bisphenol-A in water

Three kinds of mesoporous carbon materials,C-1,C-2 and C-3,have been used for implementing static adsorption experiments.C-3 with centralized mesoporous distribution and larger specific surface area has been chosen for adsorbing bisphenol-A under different temperature and pH conditions.The results show that the saturated adsorption capacity of C-3 for bisphenol-A reaches 279.4 mg/g when the initial mass concentration of bisphenol-A is 60 mg/L and the temperature 30 ℃C.Under the same conditions and near the isoelectric point,the bisphenol-A removing rate by C-3 reaches the maximum value 47.4％,and saturated adsorption capacity reaches 284.5 mg/g.The C-3 adsorption for bisphenol-A complies with pseudo-second-order kinetics equation.