以季胺化PS微球（PS-CH₂-N⁺（C₂H₅）₃Cl^-）为载体，吸附溶液中的Fe³⁺和Ni²⁺，用硼氢化钠还原氯制备负载型纳米零价Fe/Ni（PS-NZVFe/Ni），采用SEM、EDS、BET对其进行表征。以对硝基氯苯为目标物，考察了PS-NZVFe/Ni对目标物的催化还原脱氯效果，发现Ni/Fe质量比、PS-NZVFe/Ni质量、温度、溶液pH对降解反应均有影响。1.0 g PS-NZVFe/Ni（Ni/Fe质量比为2.0%）25℃下处理pH为3~7、250 mL浓度为250.3 mg/L的p-CNB水溶液，振荡速度为110 r/min，20 min时p-CNB转化率可达99.0%以上，90 min后p-CNB完全还原成苯胺。

Firstly,quaternary aminated polystyrene microspheres (PS-CH₂-N⁺(C₂H₅)₃Cl^-) are taken as the carrier to absorb Fe³⁺ and Ni²⁺ in the solution,and then chlorine in the microspheres is reduced by sodium borohydride to prepare the support type ano-scale zero-valent Ni/Fe catalyst (PS-NZVFe/Ni),which is then characterized by SEM,EDS and BET.Then p-nitrochlorobenzene (p-CNB) is taken as the target substance to determine catalytic reduction dechlorination effect of prepared PS-NZVFe/Ni.It is found that the mass ratio of Ni/Fe,PS-NZVFe/Ni dosage,temperature,solution pH all have impacts on reduction reaction.Under the conditions of 25℃,pH=3-7,the oscillation speed at 100 r·min^-1,dosage of PS-NZVFe/Ni (Ni/Fe=2.0%) being 1.0 g and 250 mL of p-CNB aqueous solution with concentration of 250.3 mg·L^-1 as object,the conversion rate of p-CNB can exceed 99.0% in 20 min,and reach 100% in 90 min.

施陆凯(1991-),男,硕士研究生,研究方向为安全环境材料,786043745@qq.com