Maham Mehdi, Nasrollahzadeh Mahmoud, Sajadi S Mohammad, Nekoei Mehdi
Department of Chemistry, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, Iran.
Department of Chemistry, Faculty of Science, University of Qom, Qom 3716146611, Iran; Center of Environmental Researches, University of Qom, Qom, Iran.
J Colloid Interface Sci. 2017 Jul 1;497:33-42. doi: 10.1016/j.jcis.2017.02.064. Epub 2017 Feb 28.
In current research, Ag/RGO/FeO nanocomposite was synthesized through applying the aqueous extract of Lotus garcinii leaves through a two-step method. The plant extract was utilized as agents for reduction and stabilization in biosynthesizing nanocomposite. The green synthesized nanocatalyst was characterized by FT-IR, FE-SEM, EDX, XRD, TEM, UV-Vis absorption spectroscopy. The catalytic activity of the biosynthesized nanocomposite was studied by reducing different colored solutions contained organic pollutants such as 4-nitrophenol (4-NP), Congo red (CR) and Rhodamine B (RhB). In order to verify commercial applications of the prepared heterogeneous nanocatalyst, reusability and recoverability tests were performed in five successive catalytic reactions.
在当前的研究中，通过两步法应用莲雾叶水提取物合成了Ag/RGO/FeO纳米复合材料。植物提取物被用作生物合成纳米复合材料的还原和稳定剂。通过傅里叶变换红外光谱（FT-IR）、场发射扫描电子显微镜（FE-SEM）、能谱仪（EDX）、X射线衍射仪（XRD）、透射电子显微镜（TEM）、紫外可见吸收光谱对绿色合成的纳米催化剂进行了表征。通过还原含有4-硝基苯酚（4-NP）、刚果红（CR）和罗丹明B（RhB）等有机污染物的不同颜色溶液，研究了生物合成纳米复合材料的催化活性。为了验证所制备的多相纳米催化剂的商业应用，在连续五次催化反应中进行了可重复使用性和可回收性测试。
