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| 硫氮共掺杂TiO2薄膜的可见光催化性能 | |
| 引用本文： | 白爱英,梁伟,郑耿乐,赵兴国.硫氮共掺杂TiO2薄膜的可见光催化性能[J].太原理工大学学报,2011,42(1):74-78. |
| 作者姓名： | 白爱英 梁伟 郑耿乐 赵兴国 |
| 作者单位： | 1. 太原理工大学,材料科学与工程学院,太原,030024;忻州职业技术学院,山西,忻州,034000 2. 太原理工大学,材料科学与工程学院,太原,030024 3. 第二炮兵青州士官学校,山东,青州,262500 |
| 摘 要： | 以钛酸丁酯(C16H36O4Ti)和硫脲(SC(NH2)2)为前驱体制备溶胶,通过旋涂方法制备Ti O2光催化剂薄膜;利用XRD、SEM、XPS、UV-vis等手段进行结构表征和光吸收性能测试,并通过降解亚甲基蓝溶液评定其可见光下的光催化活性。结果表明,以硫脲为前驱体时可实现硫氮元素在Ti O2中的共掺杂;掺杂后的Ti O2薄膜对可见光有明显的吸收,并在可见光下对亚甲基蓝溶液显示出较高的降解率,其中掺杂量质量分数为3.0%的薄膜样品光催化活性最好。在本实验条件下,经可见光照射7 h后,亚甲基蓝溶液降解率接近100%。分析表明,硫元素以S6+状态取代Ti4+存在于Ti O2晶格,氮元素则以间隙和取代的方式存在。硫氮元素的协同作用在Ti O2的禁带中引入杂质新能级,使Ti O2带隙变窄,因此对可见光吸收并显示出强的可见光催化活性。 |
| 关 键 词： | 非金属元素共掺杂 TiO2 薄膜 可见光催化活性 |
Photo-catalytic Properties under Visible Light of S and N Co-doped Titanium Oxide Films |
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| BAI Ai-ying,LIANG Wei,ZHENG Geng-le,ZHAO Xing-guo.Photo-catalytic Properties under Visible Light of S and N Co-doped Titanium Oxide Films[J].Journal of Taiyuan University of Technology,2011,42(1):74-78. | |
| Authors: | BAI Ai-ying LIANG Wei ZHENG Geng-le ZHAO Xing-guo |
| Institution: | BAI Ai-ying1,2,LIANG Wei1,ZHENG Geng-le3,ZHAO Xing-guo3(1.College of Materials Science and Engineering,TUT,Taiyuan 030024,China,2.Xinzhou Vocational Technical College,Xinzhou 034000,3.Second Artillery Sergeant School,Qingzhou 262500,China) |
| Abstract: | S and N co-doped TiO2 photo-catalyst with high visible light activity was prepared by sol-gel method using C16H36O4Ti and SC-(NH2)2 as precursor.The catalyst was characterized by X-ray diffraction,scanning electron microscopy,X-ray photoelectron spectroscopy and UV-vis absorption spectra.Effects of doping amount on structure and optical properties of TiO2 thin films were discussed.Results show that S and N co-doping was definitive in TiO2 film by using SC(NH2)2 as precursor.Co-doped TiO2 films presented bet... |
| Keywords: | TiO2 |
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