Zhang Hongling, Yan Yanghao, Khan Muhammad Asim, Xia Mingzhu, Lei Wu, Wang Fengyun
Nanjing Institute of Enivironmental Sciences, Ministry of Ecology and Environment, Nanjing, People's Republic of China.
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China.
Environ Technol. 2021 May;42(13):2077-2084. doi: 10.1080/09593330.2019.1691664. Epub 2019 Nov 28.
In this article, the spherical filler-like ZnFeO/BiMoO (ZFO/BMO) surrounded by nanosheets were synthesized by a solvothermal method using spherical ZnFeO as a matrix. Scanning electron microscope (SEM), X-ray diffraction (XRD), Photoluminescence (PL), Fourier transform infrared spectroscopy (FT-IR) and Diffuse reflectance spectra (DRS) were used to characterize the prepared samples. The photocatalytic performance of the material was detected under 420 nm visible light by Rhodamine B (RhB). The degradation results indicated that the ZFO/BMO photocatalyst with 20% ZnFeO content (ZFO/BMO-2) demonstrated highly efficient performance. The constructed Z-type ZFO/BMO heterojunction lengthens the visible light absorption threshold and improves the photocatalytic activity. Furthermore, ZFO/BMO heterojunction composite photocatalyst can be recycled effectively by applying an appropriate external magnetic field. It has important research value in photocatalysis and recycling.
在本文中，以球形ZnFeO为基质，通过溶剂热法合成了被纳米片包围的球形填料状ZnFeO/BiMoO（ZFO/BMO）。利用扫描电子显微镜（SEM）、X射线衍射（XRD）、光致发光（PL）、傅里叶变换红外光谱（FT-IR）和漫反射光谱（DRS）对制备的样品进行了表征。通过罗丹明B（RhB）在420 nm可见光下检测了该材料的光催化性能。降解结果表明，ZnFeO含量为20%的ZFO/BMO光催化剂（ZFO/BMO-2）表现出高效的性能。构建的Z型ZFO/BMO异质结延长了可见光吸收阈值并提高了光催化活性。此外，通过施加适当的外部磁场，ZFO/BMO异质结复合光催化剂可以有效地回收利用。它在光催化和回收利用方面具有重要的研究价值。
