【关键词】 Nafion膜; 光催化降解; 亚甲基蓝; 阳离子聚丙烯酰胺（CPAM）; 羧甲基纤维素（CMC）; 高铁酸盐;

【英文关键词】 Nafion membrane; photocatalytic degradation; methylene blue; cation polyacrylamide （CPAM）; Carboxymethylcellulose（CMC）; ferrate;

【中文摘要】 本论文将亚铁离子嵌入Nafion膜中，利用Fe~(3+)／Fe~(2+)光催化降解亚甲基蓝，脱色率达90％。研究了降解亚甲基蓝时H_2O_2以及pH值的影响。亚甲基蓝光催化降解氧化反应符合一级动力学规律，表观速率常数为0.5689 min~(-1)。 以Fe~(3+)为交联剂，制备了阳离子聚丙烯酰胺(CPAM)-羧甲基纤维素(CMC)聚合物电解质膜，用红外光谱和扫描电镜做膜成分与形态表征，将CPAM-CMC膜应用于电解制备高铁酸盐。实验结果表明，CPAM-CMC聚合物电解质膜能有效地阻止FeO_4~(2-)向阴极室扩散，与此同时阴极室中生成的OH~-及时地补充了阳极室中OH~-的消耗。 以改进的双阴极-CPAM-CMC聚合物电解质膜-多孔圆筒铸铁阳极的电解槽电解制备高铁酸盐。圆筒形铸铁阳极因内外两面电流密度分布均匀，极化小，从而提高了电流效率及制得的高铁酸盐浓度。用电解新制的高铁酸盐降解联苯胺模拟废水的结果表明，COD_(Cr)(化学需氧量)的去除率达85％，联苯胺最终被矿化成小分子无机物。

【英文摘要】 Fe~(2+) was embedded in Nation cation-exchange membrane, methylene blue wasdegradated by photocatalytic reaction of Fe~(3+)/Fe~(2+) system. The decolorization ratewas 90%. The influence of H_2O_2 and pH was discussed. The reaction of thephotocatalytic degradation of the methylene blue solution meeted first-order kineticlaw, and the apparent rate constant was 0.5689min~(-1). The polyelectrolyte membrane was prepared by interaction between cationpolyacrylamide and carboxymethylcellulose using Fe~(3+...