Doping mechanism of Zn2+ ions in Zn-doped TiO2 prepared by a sol-gel method
Doping mechanism of Zn2+ ions in Zn-doped TiO2 prepared by a sol-gel method
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溶胶-凝胶法制备Zn掺杂TiO2中Zn离子的掺杂机理
DOI：
10.1039/c5ce00933b
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发表时间：
2015
期刊：
影响因子：
3.1
通讯作者：
Cao Yaan
中科院分区：
文献类型：
--
作者：
Yu Yanlong;Wang Jingsheng;Li Wei;Zheng Wenjun;Cao Yaan
采用溶胶-凝胶法，通过改变Zn离子浓度和煅烧温度，制备了一系列Zn掺杂TiO2。采用高分辨透射电子显微镜（HRTEM）、X射线光电子能谱（XPS）和X射线衍射（XRD）等技术研究了Zn掺杂TiO2样品中Zn的存在状态、存在状态的转变和相转变。Zn掺杂TiO2中Zn 2+离子的存在状态及存在状态（O-Zn-Cl和ZnTiO 3）的转变与Zn离子的煅烧温度、浓度以及从金红石到金红石的相变温度密切相关。这一工作有助于更好地理解Zn~（2+）离子在Zn掺杂TiO_2中的掺杂机理。
A series of Zn doped TiO2 is prepared via a sol–gel method by changing the concentration of Zn ions and calcination temperature. To investigate the existing states of introduced Zn, the transformation of existing states and the phase transition for the Zn doped TiO2 samples, high resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) techniques are applied. The existing states of Zn2+ ions and the transformation of existing states (O–Zn–Cl and ZnTiO3) in Zn doped TiO2 are closely related to the calcination temperature and concentration of introduced Zn ions, as well as the phase transition temperature from anatase to rutile. This work can be helpful for a better realization about the doping mechanism of Zn2+ ions in Zn doped TiO2.