Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838683, Iran.
Saveh University of Medical Sciences, Saveh, Iran.
Environ Sci Pollut Res Int. 2023 Mar;30(12):32762-32775. doi: 10.1007/s11356-022-24554-9. Epub 2022 Dec 5.
Herein, we report the synthesis and characterization of chrysoidine (4-phenylazo-m-phenylenediamine) grafted on magnetic nanoparticles (FeO@SiO@CPTMS@PhAzPhDA = FeSiPAPDA) as a novel and versatile adsorbent used for the satisfactory removal of Pb, Ni, and Cd ions from contaminated water via the formation of their complexes. The Freundlich, Langmuir, Temkin, and Redlich-Patterson isotherm models were studied to reveal the adsorption capability of the adsorbent and were found out that the Langmuir model is more compatible with the nano-adsorbent behavior. Moreover, according to the ICP tests as well as based on the Langmuir isotherm, the maximum adsorption capacity of the FeSiPAPDA-based adsorbent for the Pb ions (97.58) is more than that of Cd (78.59) and Ni ions (64.03).
在此，我们报告了一种新型多功能吸附剂的合成与表征，该吸附剂是将 Chrysoidine（4-苯基偶氮-m-苯二胺）接枝到磁性纳米颗粒（FeO@SiO@CPTMS@PhAzPhDA = FeSiPAPDA）上得到的，可用于通过形成配合物来满意地去除受污染水中的 Pb、Ni 和 Cd 离子。研究了 Freundlich、Langmuir、Temkin 和 Redlich-Patterson 等温模型，以揭示吸附剂的吸附能力，结果表明 Langmuir 模型更符合纳米吸附剂的行为。此外，根据 ICP 测试以及基于 Langmuir 等温线，基于 FeSiPAPDA 的吸附剂对 Pb 离子（97.58）的最大吸附容量大于 Cd（78.59）和 Ni 离子（64.03）。
