Narath Sajina, Koroth Supin Karonnan, Shankar Sarojini Sharath, George Bini, Mutta Vasundhara, Wacławek Stanisław, Černík Miroslav, Padil Vinod Vellora Thekkae, Varma Rajender S
Department of Chemistry, School of Physical Sciences, Central University of Kerala, Kasaragod 671316, Kerala, India.
Department of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Kasaragod 671316, Kerala, India.
Nanomaterials (Basel). 2021 Jun 13;11(6):1558. doi: 10.3390/nano11061558.
A facile green synthetic method is proposed for the synthesis of zinc oxide nanoparticles (ZnO NPs) using the bio-template () leaves extract. The morphological, functional, and structural characterization of synthesized ZnO NPs were studied by adopting different techniques such as energy dispersive X-ray analysis (EDX), high-resolution transmission electron microscopy (HR-TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-Visible spectroscopy, fourier transform infrared (FTIR) spectroscopy, raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The fabricated ZnO NPs exhibit an average size of 35 nm, with a hexagonal nanostructure. Further, the well-characterized ZnO NPs were employed for the photocatalytic degradation of methylene blue (MB) in an aqueous solution. The photocatalytic activity was analyzed by changing the various physicochemical factors such as reaction time, amount of photocatalyst, precursor concentration, and calcination temperature of the ZnO NPs. All the studies suggest that the ZnO synthesized through the green protocol exhibits excellent photocatalytic potency against the dye molecules.
提出了一种简便的绿色合成方法，使用生物模板（）树叶提取物合成氧化锌纳米颗粒（ZnO NPs）。采用能量色散X射线分析（EDX）、高分辨率透射电子显微镜（HR-TEM）、扫描电子显微镜（SEM）、X射线衍射（XRD）、紫外可见光谱、傅里叶变换红外（FTIR）光谱、拉曼光谱和X射线光电子能谱（XPS）等不同技术，对合成的ZnO NPs进行了形态、功能和结构表征。制备的ZnO NPs平均尺寸为35 nm，具有六方纳米结构。此外，将表征良好的ZnO NPs用于水溶液中亚甲基蓝（MB）的光催化降解。通过改变各种物理化学因素，如反应时间、光催化剂用量、前驱体浓度和ZnO NPs的煅烧温度，分析了光催化活性。所有研究表明，通过绿色方案合成的ZnO对染料分子具有优异的光催化效能。
