| 钒铁掺杂TiO_2微球的制备及其光催化性能研究 |
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| 引用本文： | 冯勇,薛卫东,王建华,苏荣,易丹. 钒铁掺杂TiO_2微球的制备及其光催化性能研究[J]. 材料导报, 2009, 23(20) |
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| 作者姓名： | 冯勇 薛卫东 王建华 苏荣 易丹 |
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| 作者单位： | 1. 四川师范大学化学与材料科学学院,成都,610068
2. 四川师范大学化学与材料科学学院,成都,610068;电子科技大学微电子与固体电子学院,成都,610054 |
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| 摘 要： | 采用水热法在不使用模板剂的条件下合成了在水中分散良好、粒径为300～800nm、规则的锐钛矿型TiO2微球.用NH4VO3和FeC2O4按原子分数为0%、0.8%、1.6%、2.4%进行V5+、Fe3+掺杂;当TiO2质量浓度为0.134g/L、pH值为9时进行可见光降解20mg/L亚甲基蓝实验.结果表明,V掺杂的降解效果与P25粉接近,Fe掺杂有抑制光催化的效果,钒铁共掺杂则呈现出短期降解能力优于未掺杂微球,并且比P25粉沉淀得更彻底、更迅速.通过XRD、FTIR、SEM分析发现,TiO2微球是由粒径约为10nm的晶粒组成,V5+进入TiO2的晶格,Fe3+则以QFe2O3形式存在于微球中.
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| 关 键 词： | TiO2微球 钒铁掺杂 亚甲基蓝 可见光催化 |
Preparation of Dissociability V~(5+) and Fe~(3+) Co-doped TiO_2 Micro Spherical Particles and Research on Its Visible Light Photocatalysis |
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| FENG Yong,XUE Weidong,WANG Jianhua,SU Rong,YI Dan. Preparation of Dissociability V~(5+) and Fe~(3+) Co-doped TiO_2 Micro Spherical Particles and Research on Its Visible Light Photocatalysis[J]. Materials Review, 2009, 23(20) |
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| Authors: | FENG Yong XUE Weidong WANG Jianhua SU Rong YI Dan |
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| Affiliation: | FENG Yong1,XUE Weidong1,2,WANG Jianhua1,SU Rong1,YI Dan1(1 School of Chemistry , Material Science,Sichuan Normal University,Chengdu 610068,2 School of Microelectronics, Solid-State Electronics,University of Electronic Science , Technology of China,Chengdu 610054) |
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| Abstract: | Using hydrothermal method without templates,brookite TiO2 spherical micro particles are successfully synthesized whose diameter sizes are 300~800nm.The TiO2 spherical micro particles co-dopes with V5+ and Fe3+ introduced by NH4VO3 and FeC2O4 with the atom fraction of 0%,0.8%,1.6% and 2.4%.Add the samples with a quantum of 0.134g/L into the solutions to degrade 20mg/L methylene blue solution under the visible light at pH=9.The results show that the degradation ability of V5+ doped spherical micro particles i... |
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| Keywords: | TiO2 spherical micro particles V5 and Fe3 co-doped methylene blue visible light photocatalysis |
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