【摘要】 采用乙醇分散法制备了纳米羟基铁修饰的玉米苞叶和竹笋壳的活性炭复合物(记为nFeOOH@AC),分析了nFeOOH@AC对水样中亚甲基蓝的吸附性能及动力学机理。研究表明，nFeOOH@AC对亚甲基蓝的吸附以化学吸附为主，符合准二级动力学模型。在亚甲基蓝初始质量浓度为3～120 mg/L,体积为50 mL,nFeOOH@AC投加量为10 mg, pH为3～12,吸附时间为1～24 h时，吸附率随着pH升高而增大，随着亚甲基蓝初始浓度的增大先增后减，随着吸附时间的增加而增加。nFeOOH@AC可以作为一种新型环境友好型吸附剂应用于亚甲基蓝废水处理。更多还原

【Abstract】 The nano-hydroxyferric modified activated carbon(nFeOOH@AC)was prepared by ethanol dispersion method with corn bracts and bamboo shoot shells, and the adsorption performance and kinetic mechanism of nFeOOH@AC for methylene blue in water samples were analyzed. The results showed that the adsorption of methylene blue on nFeOOH@AC was mainly chemisorption, which conformed to the quasi-second-order kinetic model. When methylene blue initial concentration was 3-120 mg/L,volume was 50 mL,dosage of nFeOOH@AC was 10 mg, pH was 3-12,adsorption time was 1-24 h, the adsorption ratio increased with the increase of pH and adsorption time, first increased and then decreased with the increase of methylene blue initial concentration. nFeOOH@AC could be used as a new environment-friendly adsorbent in the treatment of methylene blue wastewater.更多还原