| 铁、氮共掺杂二氧化钛薄膜的亲水性能; Hydrophilicity of TiO_2 Thin Films Codoped with Iron and Nitrogen | |
| 黄东升 ; 曾人杰 ; 陈朝凤 ; 李玉花 | |
| 2007-07 | |
| 关键词 | 溶胶-凝胶法 铁、氮共掺杂 二氧化钛 亲水性 Sol-gel method Iron and nitrogen codoping Titania Hydrophilicity |
| 英文摘要 | [中文文摘]采用溶胶-凝胶法制备了铁掺杂TiO2(Fe-TiO2)薄膜,将Fe-TiO2薄膜放置氨气气氛中高温处理,形成铁、氮共掺杂TiO2(Fe/N-TiO2)薄膜.通过XRD、XPS、SEM、UV-Vis法进行吸收光谱分析及薄膜表面亲水接触角分析,研究了铁、氮掺杂浓度,热处理温度,膜厚等因素对薄膜亲水性能的影响.结果表明,Fe/N-TiO2(0.5%Fe,摩尔百分数)显示出更佳的亲水性能,在可见光下优势尤为明显.铁掺杂主要作用是降低电子和空(的复合几率,氮掺杂可以增强TiO2薄膜在可见光区的吸收,两种效应相互结合,共同提高了薄膜在可见光下的亲水性能.[英文文摘]TiO2 doped with iron(Fe-TiO2)thin films were synthesized using sol-gel method.TiO2 codoped with iron and nitrogen(Fe/N-TiO2)thin films were prepared by calcining Fe-TiO2 thin films in ammonia atmosphere.The influence of iron and nitrogen doping concentration,heat-treatment temperature and film thickness on the hydrophilicity of the films were studied by XRD,XPS,SEM,UV-Vis spectra and measured water contact angle.The results indicated that Fe/N-TiO2(0.5%Fe,molar percent)films were optimum in hydrophilicity,especially under visible-light irradiation. Doping iron mostly reduced the recombination of electrons and holes, and doping nitrogen in TiO2 enhances photoresponse in visible-light region. The hydrophilicity benefited from both effects.; 国家自然科学基金(50472057) |
| 语种 | 中文 |
| 出版者 | 中国化学会 |
| 内容类型 | 期刊论文 |
| 源URL | [http://dspace.xmu.edu.cn/handle/2288/2960]  |
| 专题 | 化学化工－已发表论文 |
| 推荐引用方式 GB/T 7714 | 黄东升,曾人杰,陈朝凤,等. 铁、氮共掺杂二氧化钛薄膜的亲水性能, Hydrophilicity of TiO_2 Thin Films Codoped with Iron and Nitrogen[J],2007. |
| APA | 黄东升,曾人杰,陈朝凤,&李玉花.(2007).铁、氮共掺杂二氧化钛薄膜的亲水性能.. |
| MLA | 黄东升,et al."铁、氮共掺杂二氧化钛薄膜的亲水性能".(2007). |
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