花球状ZnO的化学合成及光催化降解有机染料性能  

Chemical Synthesis of Flower-Like ZnO and Photocatalytic Degradation Performance of Organic Dyes

作　　者：贾明明 赵旭浩 刘畅源 陈克正[1] JIA Mingming;ZHAO Xuhao;LIU Changyuan;CHEN Kezheng(College of Material Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,Shandong Province,China;School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,Shandong Province,China)

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042 [2]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《吉林大学学报（理学版）》2023年第5期1211-1218,共8页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:81971731);山东省自然科学基金(批准号:ZR2018MEM016)。

摘　　要：用化学沉淀法制备一种花球状ZnO结构(ZnO-F),并通过扫描电子显微镜(SEM)和透射电子显微镜(TEM)表征样品结构,用X射线粉末衍射(XRD)、X射线光电子能谱(XPS)和能量散射谱(EDS)分析样品成分,用紫外可见漫反射光谱(DRS)和荧光光谱(PL)分析样品的光电性能,通过光催化降解亚甲基蓝(MB)研究ZnO-F的光催化活性.结果表明:所得产物是直径约为1μm的ZnO,其花球结构由约为17 nm的纳米片交叉组装而成;样品具有较高的光催化活性,240 min内光催化降解MB的效率超过90%.Flower-like ZnO(ZnO-F)structure was prepared by chemical precipitation method.The sample structure was characterized by scanning electron microscope(SEM)and transmission electron microscope(TEM),the composition of sample was analyzed by X-ray powder diffraction(XRD),X-ray photoelectron spectroscopy(XPS)and energy dispersive spectroscopy(EDS),the photoelectric performance of the sample was analyzed by UV-visible diffuse reflectance spectroscopy(DRS)and fluorescence spectroscopy(PL),and the photocatalytic activity of ZnO-F was studied by photocatalytic degradation of methylene blue(MB).The results show that the product is ZnO with a diameter of about 1μm,and its flower-like structure is formed by cross assembly of nanosheets with a diameter of about 17 nm.The sample has high photocatalytic activity,and the photocatalytic degradation efficiency of MB exceeds 90%within 240 min.

关 键 词：化学沉淀法 花球状ZnO 光催化活性 催化降解 亚甲基蓝 

分 类 号：O482[理学—固体物理]