| 无模板剂的溶胶-水热法合成具有可见光响应的氮掺杂混晶 TiO2(锐钛矿/金红石/板钛矿)纳米棒束 |
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| 引用本文： | 刘正江,鲍晓丽,邢磊,杨桔材,张前程.无模板剂的溶胶-水热法合成具有可见光响应的氮掺杂混晶 TiO2(锐钛矿/金红石/板钛矿)纳米棒束[J].稀有金属材料与工程,2019,48(1):77-84. |
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| 作者姓名： | 刘正江 鲍晓丽 邢磊 杨桔材 张前程 |
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| 作者单位： | 内蒙古工业大学内蒙古自治区工业催化重点实验室;江苏大学绿色化学与化工技术研究院 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 采用无模板剂的溶胶-水热法制备了具有可见光响应的N掺杂锐钛矿/金红石/板钛矿型TiO_2(N-TiO_2)纳米棒束,并利用X射线衍射(XRD)、透射电镜(TEM)、紫外-可见光漫反射光谱(UV-Vis DRS)、傅里叶变换红外光谱(FTIR)和X射线光电子能谱(XPS)等手段对获得的样品进行了表征。以甲基橙为模型反应物,评价了N-TiO_2纳米棒束的光催化活性。表征结果结合光催化活性评价结果显示,与P25-TiO_2相比,N掺杂、混晶及纳米棒束之间的协同作用是所制备的混晶N-TiO_2纳米棒束具有良好光催化活性的主要原因,并对混晶N-TiO_2纳米棒束光催化降解甲基橙的机理进行了探讨。
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| 关 键 词： | TiO2纳米棒束 混晶TiO2 氮掺杂 可见光光催化 |
| 收稿时间： | 2017/7/10 0:00:00 |
| 修稿时间： | 2017/9/7 0:00:00 |
Template-free Sol-hydrothermal Synthesis of a Nitrogen Doped Anatase/rutile/brookite TiO2 Nano-rod Bundle for Visible Light Driven Photocatalysis |
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| Liu Zhengjiang,Bao Xiaoli,Xing Lei,Yang Jucai and Zhang Qiancheng.Template-free Sol-hydrothermal Synthesis of a Nitrogen Doped Anatase/rutile/brookite TiO2 Nano-rod Bundle for Visible Light Driven Photocatalysis[J].Rare Metal Materials and Engineering,2019,48(1):77-84. |
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| Authors: | Liu Zhengjiang Bao Xiaoli Xing Lei Yang Jucai and Zhang Qiancheng |
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| Affiliation: | School of Chemical Engineering,Inner Mongolia University of Technology,School of Chemical Engineering,Inner Mongolia University of Technology,Institute of Green Chemistry and Chemical Technology,Jiangsu University,School of Chemical Engineering,Inner Mongolia University of Technology,School of Chemical Engineering,Inner Mongolia University of Technology |
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| Abstract: | Nitrogen doped anatase/rutile/brookite titanium dioxide (N-TiO2) regular nano-rod bundle photocatalyst for improving visible light photocatalytic activity was prepared through a template-free sol-hydrothermal method. The properties of the materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectra (UV-Vis DRS), Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). Photocatalytic degradation of methyl orange (MO) in an aqueous solution under visible light irradiation was used as a probe reaction to evaluate the photocatalytic activity of the mixed-phase N-TiO2 nano-rod bundle. The results of characterization combined with photocatalytic activity of MO photodegradation showed that the synergistic effects among N doping, mixed-phase and nano-rod bundle structure were the main reason to improve photocatalytic activity of mixed-phase N-TiO2 nano-rod bundle compared with P25-TiO2. The possible mechanism of MO degradation by mixed phase N-TiO2 nano-rod bundle photocatalyst was preliminarily discussed. |
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| Keywords: | Mixed-phase TiO2 Nitrogen doping TiO2 nano-rod bundle Visible light photocatalysis |
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