Fe3+/TiO2复合纳米粒子的制备及可见光响应性能

金属学报

2008, Vol. 44

Issue (11): 1394-1398

论文

本期目录 | 过刊浏览

Fe3+/TiO2复合纳米粒子的制备及可见光响应性能

张霞;孟皓;孙挺

东北大学理学院

SYTHESIS AND VISIBLE RESPONSE ACTIVITY OF TiO2 COMPOSITE NANOPARTICLES

东北大学

引用本文:

张霞; 孟皓; 孙挺 . Fe3+/TiO2复合纳米粒子的制备及可见光响应性能[J]. 金属学报, 2008, 44(11): 1394-1398 .

全文: PDF(1050 KB)

摘要:

在钛酸四丁酯(TBOT)的溶胶--凝胶过程中, 掺杂Fe3+并加入表面活性剂十六烷基三甲基溴化铵(CTAB), 得到的Fe3+/TiO2复合粒子在吸收曲线的530 nm处产生了宽的强吸收峰, 并对Rhodamine B具有一定的光催化降解活性. 应用TEM, XRD, TG--DTA和UV--Vis等手段对复合粒子进行了表征. 结果表明, 掺杂的Fe3+进入纳米TiO2的晶格, 产生新的带宽(E g=1.37 eV), 从而改变了TiO2的光谱响应范围.

关键词 ： Fe3+/TiO2复合纳米粒子, Fe掺杂

Abstract：

TiO2 composite nanoparticles were synthesized by adding iron salt and surfactant Cetyl trimethyl ammonium bromide (CTAB) into the sol-gel process of Tetrabutyl titanate (TBOT). The composite particles, whose absorption maximum was appeared in about 530nm, showed the photocatalytical activity toward Rhodamine B. The effect of Fe3+ mass on the structure and properties of composite materials was systematically studied. Some means such as TEM, XRD, TG-DTA and UV-Vis were used to character these particles. The results showed, that the Fe3+ iron was doped in the crystal lattice of TiO2 and the new bandwidth (Eg=1.37eV) was appeared. Because of that, the spectral response property of TiO2 composite materials was changed into visible light range.

Key words： TiO2 composite nanoparticles Fe3+ iron doped visible response photocatalysis

收稿日期: 2008-03-20

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https://www.ams.org.cn/CN/Y2008/V44/I11/1394

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