| 以Ti(OBu)4为钛源、三聚氰胺为氮源通过溶胶-凝胶法制备高活性光催化剂TiO2/g-C3N4 |
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| 引用本文： | 张春勇.以Ti(OBu)4为钛源、三聚氰胺为氮源通过溶胶-凝胶法制备高活性光催化剂TiO2/g-C3N4[J].稀有金属材料与工程,2017,46(2):322-325. |
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| 作者姓名： | 张春勇 |
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| 作者单位： | 江苏理工学院 化学化工学院 |
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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： | 以Ti(OBu)4为钛源、三聚氰胺为氮源，通过溶胶-凝胶和高温煅烧两步法制备了高活性可见光光催化剂TiO2/g-C3N4。利用X射线粉末衍射（XRD）、透射电子显微镜（TEM）和紫外-可见漫反射光谱（UV-vis diffuse reflectance spectra ）等手段对其进行了表征。结果表明：TiO2镶嵌在石墨相的g-C3N4中，并与g-C3N4构成TiO2/g-C3N4复合材料。由于TiO2与g-C3N4的协同作用，扩大了TiO2/g-C3N4的可见光吸收范围和强度，因而其具有很好的可见光光催化性能。
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| 关 键 词： | 光催化剂 TO2 g-C3N4 可见光光催化 |
| 收稿时间： | 2014/10/26 0:00:00 |
| 修稿时间： | 2016/3/27 0:00:00 |
Preparation of a high activity TiO2/g-C3N4 photocatalyst via a facile sol-gel method taking Ti(OBu)4 as Ti source and melamin |
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| Zhang Chunyong.Preparation of a high activity TiO2/g-C3N4 photocatalyst via a facile sol-gel method taking Ti(OBu)4 as Ti source and melamin[J].Rare Metal Materials and Engineering,2017,46(2):322-325. |
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| Authors: | Zhang Chunyong |
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| Affiliation: | School of Chemistry and Chemical Engineering, Jiangsu University of Technology |
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| Abstract: | A highly active photocatalyst TiO2/g-C3N4 was facilely synthesized by a facile two-step method, sol-gel method and calcination using Ti(OBu)4 as Ti source and melamine as nitrogen source. The structural and morphological properties of the resultant photocatalysts were characterized. The results showed that TiO2/g-C3N4 was formed and TiO2 was beset with graphite-like carbon nitride of layer structure. TiO2/g-C3N4 exhibited obviously enhanced visible light photocatalytic activity, and the degradation efficiency of Methylene blue (MB) reached 94.46% after irradiation for 1h, which was much higher than that of g-C3N4 and TiO2. The improved photocatalytic activity of TiO2/g-C3N4 was attributable to its wide spectrum responsive range, strong visible light adsorption capability, and the synergistic effect between TiO2 and g-C3N4. The mechanism of photocatalytic reaction was discussed. |
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| Keywords: | photocatalyst TO2 g-C3N4 visible light photocatalytic activity |
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