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.

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。