The photocatalytic performance of Hydroxylapatite and TiO2-nanobelt composites

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Wang, Feng^1,2 ; Gai, Ying^1,2

Department of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan

250353, China^1

Shandong Provincial Key Laboratory of Processing and Test Technology of Glass and Functional Ceramic, Qilu University of Technology, Jinan

250353, China^2

关键词: Hydrothermal methods;    Hydroxylapatite;    Liquid phase precipitation;    Methyl Orange;    Phase constituent;    Photocatalytic performance;    Spherical particle;    XRD patterns;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/2/012032/pdf
DOI  :  10.1088/1755-1315/186/2/012032

来源: IOP

【 摘 要 】

Hydroxylapatite(HA)was prepared by liquid phase precipitation method, TiO2 nanobelt(TiO2-B), and HA/TiO2-B were prepared by hydrothermal method. The phase constituent and microstructure were analyzed by X-ray diffraction(XRD) and scanning electron microscopy (SEM). The photocatalytic performance was evaluated by ultraviolet-visible (UV-Vis) spectrophotometer. The results show that the prepared HA is about 100 nm in diameter of spherical particles, for TiO2-B, the length is 1-2um, width in 100-200 nm. HA powders evenly dispersed on the surface of TiO2-B. From XRD patterns, the prepared HA and the TiO2 nanobelts were of high purity. The study of photocatalytic performance show that the photocatalytic performance of HA/TiO2-B(48.9%) is stronger than pure TiO2-B(17.5%). Therefore, it is considered that HA/TiO2-B composites would play a more important role than pure TiO2-B in the field of catalyzing methyl orange or other pollutions.