The article discusses the removal of methylene blue (MB) dye, a common cationic dye used in the textile industry, from aqueous solutions through an adsorption process. The use of porous components as adsorbents are shown to facilitate complete separation after the process is completed. The substrate was synthesized by connecting zinc copper ferrite (ZnCuFeO), polyethyleneimine (PEI), and Graphene Oxide (GO) sheets to MCM-48, which is a mesoporous material. The surface of MCM-48 was modified using CPTMS, which created an O–Si–Cl bridge, thereby improving the adsorption rate. The substrate was shown to have suitable sites for electrostatic interactions and creating hydrogen bonds with MB. The adsorption process from the Freundlich isotherm (R = 0.9224) and the pseudo-second-order diagram (R = 0.9927) demonstrates the adsorption of several layers of dye on the heterogeneous surface of the substrate. The synthesized substrate was also shown to have good bactericidal activity against and bacterial strain. Furthermore, the substrate maintained its initial ability to adsorb MB dye for four consecutive cycles. The research resulted that ZnCuFeO@MCM-48/PEI-GO substrate has the potential for efficient and economical removal of MB dye from aqueous solutions (R = 88.82%) (q = 294.1176 mg. g), making it a promising solution for the disposal of harmful industrial waste.

中文翻译：

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用氧化石墨烯和聚乙烯亚胺对含有锌铜铁氧体纳米颗粒的多孔二氧化硅进行功能化，用于水处理和抗菌应用

本文讨论了通过吸附过程从水溶液中去除亚甲基蓝 (MB) 染料（纺织工业中常用的阳离子染料）。使用多孔成分作为吸附剂可促进工艺完成后的完全分离。该基板是通过将锌铜铁氧体 (ZnCuFeO)、聚乙烯亚胺 (PEI) 和氧化石墨烯 (GO) 片连接到介孔材料 MCM-48 来合成的。使用 CPTMS 对 MCM-48 的表面进行改性，形成 O-Si-Cl 桥，从而提高吸附率。该基底被证明具有适合静电相互作用并与 MB 形成氢键的位点。 Freundlich 等温线 (R = 0.9224) 和伪二阶图 (R = 0.9927) 的吸附过程表明了多层染料在基材的异质表面上的吸附。合成的底物还显示出对细菌菌株具有良好的杀菌活性。此外，基材在连续四个循环中保持了其吸附MB染料的初始能力。研究结果表明，ZnCuFeO@MCM-48/PEI-GO 基材具有高效、经济地去除水溶液中 MB 染料的潜力 (R = 88.82%) (q = 294.1176 mg. g)，使其成为一种有前途的解决方案有害工业废物的处置。