| 单晶TiN颗粒为前驱体制备TiO2薄膜及其光催化性能（英文） |
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| 引用本文： | 苏景扬,于洪涛,马彬,全燮,董星龙,黄昊.单晶TiN颗粒为前驱体制备TiO2薄膜及其光催化性能（英文）[J].纳米技术与精密工程,2012,10(4):298-301. |
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| 作者姓名： | 苏景扬 于洪涛 马彬 全燮 董星龙 黄昊 |
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| 作者单位： | 1. 大连理工大学环境学院工业生态与环境工程教育部重点实验室,大连,116024
2. 大连理工大学材料科学与工程学院,大连,116024 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目，国家自然科学基金资助项目，中央高校科研启动金资助项目 |
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| 摘 要： | 为了开发高活性的二氧化钛(TiO2)光催化剂,通过简易的两步法制备了TiO2薄膜.首先将钛片放入氮化钛(TiN)纳米颗粒悬浮液中,然后干燥这一体系制得TiN/Ti薄膜,最后通过煅烧TiN薄膜前驱体制备了平整均一的二氧化钛(TiO2)薄膜.通过考察退火温度对样品光吸收性能的影响,确定最优退火温度为500℃.在此条件下制备的TiO2为多晶锐钛矿,吸收边带400 nm.以制备的TiO2薄膜为催化剂,3 h内苯酚的降解率达到88%,远大于使用德固赛TiO2(P25)时的62%,制备的二氧化钛薄膜比P25显示出更优良的光催化性能,其光催化降解苯酚的动力学常数为P25的2.2倍.
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| 关 键 词： | 二氧化钛 光催化 氮化钛 退火 |
Photocatalytic Performance of TiO2 Film Prepared from Single Crystal TiN Nanoparticles |
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| SU Jing-yang
,
YU Hong-tao
,
MA Bin
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QUAN Xie
,
DONG Xing-long
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HUANG Hao.Photocatalytic Performance of TiO2 Film Prepared from Single Crystal TiN Nanoparticles[J].Nanotechnology and Precision Engineering,2012,10(4):298-301. |
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| Authors: | SU Jing-yang YU Hong-tao MA Bin QUAN Xie DONG Xing-long HUANG Hao |
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| Affiliation: | 1. Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China; 2. School of Material Science and Technology, Dalian University of Technology, Dalian 116024, China) |
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| Abstract: | In order to develop TiO2 film photocatalyst with high photocatalytic activity,uniform TiO2 film was prepared by annealing TiN film,which was fabricated by a facile method including two steps： putting Ti wafer into a stable TiN nanoparticle suspension and then drying this system to obtain TiN/Ti film.The annealing temperature was optimized and the optimal one was 500 ℃.TiO2 prepared at the temperature had a polycrystalline anatase structure,and its absorption edge was about 400 nm.The photocatalytic degradation efficiency of phenol on the TiO2 film was up to 88% in 3 h,whereas it was only 62% on TiO2-P25.The kinetic constant of phenol degradation on the TiO2 film was 2.2 times as great as that on TiO2-P25.Hence,the TiO2 film displayed better photocatalytic ability than TiO2-P25 film. |
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| Keywords: | TiO2 photocatalysis TiN anneal |
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