【摘要】 制备了基于表面分子印迹聚合物修饰的Ti O2纳米管(S-MIP-Ti O2NTs)光催化剂,并利用SEM和FT-IR手段进行了表征。结果表明S-MIP-Ti O2NTs的平均粒径为60 nm,针对模板分子,相对于修饰前的Ti O2纳米管(Ti O2NTs),S-MIP-Ti O2NTs的吸附选择性和光催化性能得到了提高。相对于高浓度范围(10~100 mg/L),在低浓度范围(10~100μg/L)内S-MIP-Ti O2NTs显示出较高的吸附催化性能。利用S-MIP-Ti O2NTs可以去除尾水中部分代表性的雌激素,同时还具有较好的再生性能。更多还原

【Abstract】 Surface-molecular-imprinted and polymer-modified Ti O2nanotube( S-MIP-Ti O2NTs) photocatalysts were fabricated,characterized,and tested for the removal of estrogenic pollutants from wastewater in this study for the first time. The results of scanning electron microscopy and Fourier-transform infrared spectroscopy show that average diameters of Ti O2 NTs is 60 nm. The adsorption selectivity and photocatalytic activity of S-MIP-Ti O2 NTs on template compound,which is compared with Ti O2 NTs,are improved.Interestingly,S-MIP-Ti O2 NTs exhibits higher adsorption intensity and photocatalytic selectivity at low concentrations( 10 ~ 100 μg / L)of E2 than at high concentrations( 10 ~ 100 mg / L). It is also found that some representative estrogenic chemicals could be selectively and rapidly removed from secondary effluents of municipal wastewater treatment plants using S-MIP-Ti O2 NTs as photocatalysts. S-MIPTi O2 NTs photocatalysts exhibit excellent regeneration characteristics.更多还原