摘要
本文以钛酸四丁酯为前躯体,结合溶胶-凝胶法和水热法,制备了Gd^3+掺杂的TiO2纳米管。采用TG-DSC、XRD、TEM、UV-Vis等分析手段,对Gd^3+掺杂的TiO2纳米管进行表征,比较了制备条件相同的情况下纯TiO2纳米管与Gd^3+掺杂的TiO2纳米管晶型转变温度、形貌及UV-Vis吸收差别。结果表明,Gd^3+的掺杂有利于晶型转变的降低,管径的减小,管长的增长。UV-Vis吸收光谱表明掺杂后的产物的反射率明显的比纯TiO2纳米管的反射率减小,可见光区吸收增强,吸收边发生了明显的红移。
Gd^3+doped TiO2 nanotubes were prepared by using tetrabutyl titanate as precursor and sol-gel method and hydrothermal method.The Gd^3+doped TiO2 nanotubes were characterized by TG-DSC,XRD,TEM and UV-Vis.The crystal transition temperatures,morphology and UV-Vis absorption difference of pure TiO2 nanotubes and Gd^3+doped TiO2 nanotubes were compared under the same preparation conditions.The results show that the doping of Gd^3+is beneficial to the reduction of crystal transformation,the decrease of tube diameter and the growth of tube length.The UV-Vis absorption spectrum shows that the reflectivity of the doped product is significantly lower than that of the pure TiO2 nanotube,the absorption in the visible region is enhanced,and the absorption edge is significantly red-shifted.
作者
李荡
张扬
董玮
李远勋
王雷
Li Dang;Zhang Yang;Dong Wei;Li Yuanxun;Wang Lei(School of Life and Health Science,Kaili University,Kaili556011,China)
出处
《山东化工》
CAS
2019年第10期14-16,共3页
Shandong Chemical Industry
基金
贵州省教育厅自然科学基金研究青年项目(黔教合KY字[2016]301)
贵州省科技厅、黔东南州科技局、凯里学院科技合作协议项目(黔科合LH字[2016]7314号)
凯里学院院级规划课题(Z1064)