Crystal Growth Centre, Anna University, Chennai 600025, India.
Centre for Nanoscience and Technology, Anna University, Chennai 600025, India.
J Nanosci Nanotechnol. 2019 Apr 1;19(4):2385-2390. doi: 10.1166/jnn.2019.15806.
In this work rod-like YMnO₃ were successfully prepared by hydrothermal method. The crystal structure and morphology of prepared samples were characterized by X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The structural information was confirmed from Raman spectrum and the functional group of the sample was studied from FTIR spectrum. X-ray photoelectron spectroscopy studies confirm the formation and oxidation states of YMnO₃. The optical properties of the prepared samples were investigated using UV-vis spectroscopy. The photocatalytic activity of YMnO₃ nanorods was evaluated by degradation of methyl orange (MO) under both ultraviolet and visible-light irradiation. The result shows that the YMnO₃ nanorods exhibit maximum photocatalytic activity in the degradation of MO.
在这项工作中，我们通过水热法成功制备了棒状的 YMnO₃。通过 X 射线衍射、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对制备样品的晶体结构和形态进行了表征。从拉曼光谱中确认了结构信息，从傅里叶变换红外光谱（FTIR）研究了样品的官能团。X 射线光电子能谱研究证实了 YMnO₃ 的形成和氧化态。通过紫外-可见光谱研究了制备样品的光学性质。通过在紫外光和可见光照射下降解甲基橙（MO）评价了 YMnO₃ 纳米棒的光催化活性。结果表明，YMnO₃ 纳米棒在 MO 的降解中表现出最大的光催化活性。
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