摘要
对传统的两步水合热法进行改进,采用更加经济、安全、简便的方法在室温下合成ZnO/ZnSe核壳结构。调节原料比例,实验温度,优化了制备ZnO/ZnSe核壳结构的最佳生长与修饰条件,使其具有良好的分散性,时间稳定性,良好的发光特性。研究采用醋酸锌作为锌源,硒粉作为硒源,通过调整原料比例以及实验温度制备出球形核壳结构的ZnO/ZnSe复合材料,用透射电子显微镜(TEM),X射线粉末衍射仪(XRD),紫外可见分光光度计(UV-Vis),光致发光光谱(PL),X射线光电子能谱(XPS)对晶体结构进行了表征,同时对光催化性能进行了研究。结果表明,改变实验条件,原料比例为Zn∶Se=1.6∶1,温度为80℃时生成的ZnO/ZnSe核壳结构对甲基橙溶液有较好的吸光效果。ZnSe过厚的壳层生长会阻碍复合材料对甲基橙的降解效率。实验数据结合理论分析得到了实验最佳条件。
An improved two-step heat of hydration method was used to prepare a core-shell structured ZnO/ZnSe composite material.Zinc oxide nanoparticles were prepared with zinc acetate and diethanolamine,and a selenium-containing anion solution was prepared with selenium powder and sodium borohydride.The optimal condition of Zn∶Se=1.6∶1 was obtained by adjusting the ratio of raw materials,and a spherical core-shell structure was prepared.ZnO/ZnSe,combined with transmission electron microscope,X-ray powder diffractometer,ultraviolet-visible spectrophotometer,photoluminescence spectroscopy,X-ray photoelectron spectroscopy to characterize the material composition and morphological structure,and its photocatalytic activity is analyzed and studied.
作者
张晓凯
蒋瑞枫
付晓雪
刘忠民
ZHANG Xiao-kai;JIANG Rui-feng;FU Xiao-xue;LIU Zhong-min(School of Physics and Electronics,Shandong Normal University,Jinan 250014,China;School of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,China;Management Office of Asset and Laboratory,Shandong Normal University,Jinan 250014,China)
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2024年第4期1005-1010,共6页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(51173069)
山东师范大学大型仪器设备开放基金项目(KFJJ2017008)资助。
关键词
ZnO/ZnSe核壳结构
光催化
透射电镜
X射线光电子能谱
Spheroidal ZnO/ZnSe
Photocatalytic
Transmission electron microscope
X-ray photoelectron spectroscopy
