Ertürk Ali Serol, Elmaci Gökhan, Gürbüz Mustafa Ulvi
Department of Analytical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Turkey.
Department of Chemistry, School of Technical Sciences, Adıyaman University, Adıyaman, Turkey.
Turk J Chem. 2021 Sep 20;45(6):1968-1979. doi: 10.3906/kim-2108-2. eCollection 2021.
The present paper describes green immobilization of silver nanoparticles on MnFeO@SiO nanospheres using () without using any other toxic chemicals and reducing or stabilizing agents. The morphology, composition, and magnetic properties of the resulting MnFeO@SiO-Ag core-shell nanocatalyst were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). The catalytic performance of the synthesized MnFeO@SiO-Ag was employed on the organic pollutants dyes such as rhodamine B (RhB) and methylene blue (MB). The results revealed significant reduction performances for the MB (116.28 s g) and RhB (27.12 s g) over the existing literature. Furthermore, the MnFeO@SiO-Ag exhibited high stability for the completion of the reduction of RhB between the reaction times of 13.1 (first) and 19.8 min (final) with the 100% decolorization efficiency even after several cycles with an excellent magnetic separation. Overall, this work demonstrates a simple and practical green synthetic route for the preparation of magnetic recyclable core-shell nanocatalyst that can be a good candidate for the treatment of organic contaminants in wastewater adhering to green chemistry principles for the environmental pollution concerns.
本文描述了在不使用任何其他有毒化学品以及还原剂或稳定剂的情况下，利用（）将银纳米颗粒绿色固定在MnFeO@SiO纳米球上的方法。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、热重分析（TGA）、X射线衍射（XRD）、振动样品磁强计（VSM）和衰减全反射傅里叶变换红外光谱（ATR-FTIR）对所得的MnFeO@SiO-Ag核壳纳米催化剂的形态、组成和磁性进行了表征。所合成的MnFeO@SiO-Ag对罗丹明B（RhB）和亚甲基蓝（MB）等有机污染物染料具有催化性能。结果表明，与现有文献相比，其对MB（116.28 s g）和RhB（27.12 s g）具有显著的还原性能。此外，MnFeO@SiO-Ag在13.1（第一次）至19.8分钟（最后一次）的反应时间内对RhB的还原反应具有很高的稳定性，即使经过几个循环且具有出色的磁分离效果，脱色效率仍达100%。总体而言，这项工作展示了一种简单实用的绿色合成路线，用于制备磁性可回收核壳纳米催化剂，该催化剂遵循绿色化学原则，有望成为处理废水中有机污染物的良好候选材料，以应对环境污染问题。
