The potential of a novel α‐Fe₂O₃/polyacrylonitrile (PAN) hybrid composite adsorbent to eliminate methylene blue (MB) from aqueous solution was evaluated. PAN was selected as the base composite. The presence of α‐Fe₂O₃ as nanophotocatalyst on the surface of PAN introduced an efficient photocatalytic hybrid composite adsorbent for degrading MB. Effects of α‐Fe₂O₃ nanopowder loading, pH, temperature, MB initial concentration, solar light, and contact time were investigated. Langmuir, Freundlich, and Temkin isotherms were applied to analyze the adsorption behavior. The Freundlich equation provided the best correlation with experimental data. Pseudo‐first‐order, pseudo‐second‐order, and intraparticle models were employed. Thermodynamic studies indicated an endotherm and spontaneous adsorption process in a defined temperature range.

中文翻译：

---

聚丙烯腈/α-Fe2O3杂化光催化复合吸附剂，用于增强染料去除

评价了新型α‐ Fe ₂ O ₃ /聚丙烯腈（PAN）杂化复合吸附剂从水溶液中消除亚甲基蓝（MB）的潜力。PAN被选作基础复合材料。的存在下α -Fe ₂ ö ₃作为PAN的表面上引入nanophotocatalyst一种高效的光催化混合复合吸附剂用于降解MB。的影响α -Fe ₂ ö ₃研究了纳米粉的负载，pH，温度，MB初始浓度，太阳光和接触时间。Langmuir，Freundlich和Temkin等温线用于分析吸附行为。Freundlich方程与实验数据具有最佳的相关性。使用伪一阶，伪二阶和粒子内模型。热力学研究表明在确定的温度范围内有吸热和自发吸附过程。