Poly(p-phenylenediamine)/maghemite (PPDA/γ-Fe₂O₃) composites were prepared by the oxidative polymerization of p-phenylenediamine with ammonium peroxodisulfate as an oxidizing agent in the presence of γ-Fe₂O₃ nanoparticles. Morphology of the prepared composites was examined by the scanning and transmission electron microscopies. X-ray diffraction and EDX were used to study crystallinity and chemical composition, respectively. TGA demonstrated that only 7 and 45 wt% of γ-Fe₂O₃ were incorporated into PPDA prepared with 25 and 50 wt% of γ-Fe₂O_3, respectively. Adsorption property of the composites was examined towards the anionic dye, Reactive Black 5. The adsorption results were fitted to different kinetics and isotherm models. The highest adsorption capacity (Q_max) was estimated to be 223 mg g⁻¹ in case of PPDA with the highest specific surface area (70.6 m² g^–1) prepared with 25 wt% of γ-Fe₂O₃. Q_max of neat PPDA was estimated to be 185.2 mg g⁻¹ and 123.2 mg g⁻¹ for PPDA prepared with 50 wt% of γ-Fe₂O₃. In addition to the enhancing of the adsorption capacity, the incorporation of γ-Fe₂O₃ particles provided an easy separation of the composites from the adsorption medium.

聚（p苯二胺）/磁赤铁矿（PPDA /γ-的Fe ₂ ö ₃）复合材料通过的氧化聚合来制备p苯二胺与二硫酸铵作为γ-Fe的存在氧化剂_2个ö ₃纳米颗粒。通过扫描和透射电子显微镜检查制备的复合材料的形态。X射线衍射和EDX分别用于研究结晶度和化学组成。TGA证实的γ -铁，只有7和45重量％的₂ ö ₃被纳入PPDA与γ-铁25和50％（重量）制备₂ ö _3，分别。研究了复合材料对阴离子染料活性黑5的吸附性能。吸附结果适合于不同的动力学模型和等温线模型。最高吸附容量（Q_最大）估计为223毫克克^-1在PPDA的情况下具有最高的比表面积（70.6米²克^-1）与γ-的Fe 25重量％制备₂ ö ₃。Q_最大整齐PPDA的估计为185.2毫克克^-1和123.2毫克克^-1为PPDA具有50％（重量）制备了γ-Fe ₂ ö ₃。除了吸附能力的增强，γ-Fe的掺入₂ ö _3个颗粒提供从吸附介质中的复合物的分离容易。