Journal of Nanoparticle Research ( IF 2.1 ) Pub Date : 2020-07-13 , DOI: 10.1007/s11051-020-04938-z Ning Zhang , Deqing Chu
In this paper, the erythrocyte-like Bi2WO6 structures were firstly synthesized and then were used as template, loading BiOI nanosheets on it. Then the erythrocyte-like BiOI/Bi2WO6 heterostructures were synthesized. Meantime, BiOI/Bi2WO6 heterostructures with different ratio of I/W were synthesized. The crystalline, morphology, chemical composition, and optical properties of BiOI/Bi2WO6 heterostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersion X-ray spectrum (EDX), UV-visible diffuse reflectance spectroscopy analysis (DRS), and X-ray photoelectron spectroscopy (XPS). In addition, the photocatalytic properties of degrading tetracycline (TC) were studied. The photocatalytic performance of erythrocyte-like BiOI/Bi2WO6 heterostructures with different BiOI content under visible-light irradiation showed that the erythrocyte-like BiOI/Bi2WO6 heterostructures were better than pure Bi2WO6. By optimizing the ratio of I/W, BWI-0.5 was almost completely degraded TC, and the photocatalytic mechanism of BiOI/Bi2WO6 has been proposed. Generally speaking, the erythrocyte-like BiOI/Bi2WO6 heterostructures greatly improved the photocatalytic performance.
中文翻译:
制备具有增强可见光光催化性能的类红细胞BiOI / Bi 2 WO 6异质结构
本文首先合成了类红细胞的Bi 2 WO 6结构,然后将其用作模板,在其上加载了BiOI纳米片。然后合成了类红细胞的BiOI / Bi 2 WO 6异质结构。同时,合成了具有不同I / W比的BiOI / Bi 2 WO 6异质结构。BiOI / Bi 2 WO 6的晶体,形态,化学组成和光学性质通过X射线衍射(XRD),扫描电子显微镜(SEM),能量色散X射线光谱(EDX),紫外可见漫反射光谱分析(DRS)和X射线光电子光谱(XPS)表征异质结构。此外,研究了降解四环素(TC)的光催化性能。BiOI含量不同的类BiOI / Bi 2 WO 6异质结构在可见光照射下的光催化性能表明,类BiOI / Bi 2 WO 6异质结构比纯Bi 2 WO 6更好。通过优化I / W比,BWI-0.5几乎完全降解了TC,并且BiOI / Bi的光催化机理已经提出了2 WO 6。一般来说,类红细胞的BiOI / Bi 2 WO 6异质结构大大提高了光催化性能。