中文摘要：

采用一步水热法成功制备鳞状形貌的BiOBr/Bi2WO6复合物,通过X射线衍射（XRD）仪、扫描电子显微镜（SEM）、N2吸附/解吸附比表面测定仪（BET）、傅里叶变换红外（FT-IR）光谱等对复合物进行了表征。对比Bi2WO6与BiOBr的SEM照片,结合KBr的浓度实验,提出了BiOBr/Bi2WO6的鳞状形貌的形成机理。选取有机染料为吸附质,BiOBr/Bi2WO6为吸附剂进行了复合物吸附性能测试。结果表明,BiOBr/Bi2WO6对阳离子染料表现出优越的吸附性能,10 min对次甲基蓝（MB）的吸附率高达99%,优于常规的活性炭吸附剂。此外,Bi OBr/Bi2WO6对有机染料的吸附行为符合准二级反应速率方程和Freundlich等温吸附模型。

英文摘要：

Abstact： Bi OBr/Bi2WO6 with squamous morphology is successfully prepared by a one-step hydrothermal method. Bi OBr/Bi2WO6 is shown to be an ideal material for adsorption. The structure of Bi OBr/Bi2WO6 is characterized by powder X-ray diffraction（XRD）, X-ray photoelectron（XPS） spectroscopy, and Fourier transform infrared（FT-IR） spectroscopy, and the morphology is observed with scanning electron microscopy（SEM）. The specific surface of BiO Br/Bi2WO6 is tested by a nitrogen adsorption/desorption surface area pore size distribution analyzer. According to the experiments with different concentrations of KBr and the SEM photos of BiO Br and Bi2WO6, the possible morphology formation mechanism of squamous Bi OBr/Bi2WO6 is proposed. We design a series of adsorption experiments and test the adsorption properties of the compounds with organic dyes as adsorbent and BiO Br/Bi2WO6 as adsorbent. The results show that BiO Br/Bi2WO6 exhibits a higher adsorption capacity for cationic dyes, especially the adsorption rate of MB, and BiO Br/Bi2WO6 shows a higher adsorption capacity compared with that of activated carbon. Adsorption behavior of Bi OBr/Bi2WO6 is consistent with the Freundlich isotherm model and the adsorption process of MB follows a pseudo-second-order kinetic model.