Steel manufacturing waste-based magnetic composite hydrogel was fabricated. Acrylamide-acrylic acid copolymer (AA) was intercalated to baghouse dust (BHD) to obtain (AABHD) composite. The synthesized AABHD composite was used for the removal of Pb (II), Cd (II), and MB from aqueous media. The AABHD composite was characterized using SEM, BET, XRD, TGA, FTIR, XPS, and zeta potential. The impact of various parameters on the adsorption performance of the AABHD hydrogel for MB, Cd (II), and Pb (II) was evaluated. The experimental kinetics of MB and metals followed the second-order model, where film diffusion was the dominating mechanism. The isotherm study revealed that equilibrium results of MB follow Dubinin-Radushkevich (D-R), while metals were well described by Freundlich. AABHD exhibited maximum adsorption efficiencies of 96, 98, and 99 percent and capacities of 503, 236, and 476 mg/g for MB, Cd (II), and Pb (II), respectively. The thermodynamic outcome indicated spontaneous and favorable adsorption of MB and metals. The regeneration study verified the high reusability of the AABHD composite for MB and metals. The obtained findings showed that the AABHD could be efficiently employed for the simultaneous elimination of MB and metal ions from wastewater.

制备了钢铁制造废料基磁性复合水凝胶。将丙烯酰胺-丙烯酸共聚物 (AA) 插入袋式除尘器 (BHD) 中以获得 (AABHD) 复合材料。合成的 AABHD 复合材料用于从水性介质中去除 Pb (II)、Cd (II) 和 MB。使用 SEM、BET、XRD、TGA、FTIR、XPS 和 zeta 电位对 AABHD 复合材料进行表征。评估了各种参数对 AABHD 水凝胶对 MB、Cd (II) 和 Pb (II) 吸附性能的影响。MB 和金属的实验动力学遵循二阶模型，其中薄膜扩散是主要机制。等温线研究表明，MB 的平衡结果遵循 Dubinin-Radushkevich (DR)，而 Freundlich 很好地描述了金属。AABHD 的最大吸附效率分别为 96、98、MB、Cd (II) 和 Pb (II) 的 99% 和容量分别为 503、236 和 476 mg/g。热力学结果表明 MB 和金属的自发和有利吸附。再生研究证实了 AABHD 复合材料对 MB 和金属的高度可重复使用性。获得的结果表明，AABHD 可以有效地用于同时消除废水中的 MB 和金属离子。