Li Moyan, Liu Hongjin, Pang Shaozhi, Yan Pengwei, Liu Mingyang, Ding Minghui, Zhang Bin
College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
Key Laboratory of Super Light Material and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China.
Nanomaterials (Basel). 2021 Oct 9;11(10):2650. doi: 10.3390/nano11102650.
α-FeO fusiform nanorods were prepared by a simple hydrothermal method employing the mixture of FeCl·6HO and urea as raw materials. The samples were examined by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and UV-vis diffuse reflectance spectra (UV-DRS). Its visible-light photocatalytic performances were evaluated by photocatalytic decolorization methylene blue (MB) in visible light irradiation. It was found that pure phase α-FeO nanorods with a length of about 125 nm and a diameter of 50 nm were successfully synthesized. The photocatalytic decolorization of MB results indicated that α-FeO nanorods showed higher photocatalytic activity than that of commercial FeO nanoparticles-these are attributed to its unique three-dimensional structure and lower electron-hole recombination rate.
采用简单水热法，以FeCl₃·6H₂O和尿素的混合物为原料制备了α-Fe₂O₃梭形纳米棒。通过X射线衍射（XRD）、高分辨率透射电子显微镜（HRTEM）、扫描电子显微镜（SEM）、傅里叶变换红外（FTIR）光谱和紫外可见漫反射光谱（UV-DRS）对样品进行了检测。通过在可见光照射下光催化亚甲基蓝（MB）脱色来评价其可见光光催化性能。结果表明，成功合成了长度约为125nm、直径为50nm的纯相α-Fe₂O₃纳米棒。MB的光催化脱色结果表明，α-Fe₂O₃纳米棒比商业Fe₂O₃纳米颗粒具有更高的光催化活性，这归因于其独特的三维结构和较低的电子-空穴复合率。
