【摘要】 利用NaCl-MnO2对天然沸石进行改性,通过扫描电镜(SEM)表征沸石的微观特征,用原子吸收光谱法分析改性沸石对水中Cu2+的吸附性能及影响因素,结果表明:改性沸石表面疏散,负载了一层均匀的二氧化锰涂层,其吸附能力增强;在溶液pH=9.0及25℃下,吸附时间3h,改性沸石用量为1.285g/L时,对质量浓度为50mg/L的Cu2+的去除率为98.9%。更多还原

【Abstract】 The natural zeolite was modified with NaCl-MnO2,The microscopic features of the zeolite was characterized by scanning electron microscope.The adsorption performances and influencing factor of Cu2+ on the modified zeolite were analyzed by atomic absorption spectrophotometry.The results showed that the evacuation of the modified zeolite surface,formed a layer of manganese dioxide coating,the adsorption capacity improves,At pH=9.0,25℃,adsorption time was 3h and dosage of modified-zeolite was 1.285g/L,the removal rate of Cu2+ in water(50mg/L) by modified zeolite reached 98.90%.更多还原