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| Fe~(3+)/La~(3+)共掺杂纳米TiO_2制备及其性能研究 | |
| 引用本文： | 周娟,王博,张新磊,常加忠,王振领.Fe~(3+)/La~(3+)共掺杂纳米TiO_2制备及其性能研究[J].河南师范大学学报(自然科学版),2012,40(1):89-92. |
| 作者姓名： | 周娟 王博 张新磊 常加忠 王振领 |
| 作者单位： | 1. 周口师范学院,河南周口,466001 2. 周口市环境监测站,河南周口,466000 3. 周口师范学院分析测试中心,河南周口,466001 |
| 基金项目： | 国家自然科学基金，河南省教育厅自然科学基金 |
| 摘 要： | 采用溶胶-凝胶法制备系列Fe3+/La3+共掺杂的纳米TiO2,采用X射线衍射仪(XRD)、扫描电子显微镜(SEM),X-射线能谱仪(EDS),紫外-可见吸收光谱等技术对催化剂进行表征,并以甲基橙溶液为降解目标,测定其在紫外光下光催化活性.结果表明:Fe3+,La3+的掺杂能有效减小TiO2纳米粒子的平均晶粒尺寸,提高了TiO2纳米粉体的分散性;Fe3+/La3+共掺杂的纳米复合光催化剂的吸收强度明显增加,在紫外光下2h后,Fe3+/La3+共掺杂TiO2对甲基橙溶液的降解率达98%以上. |
| 关 键 词： | 溶胶-凝胶法 纳米TiO2 Fe3+/La3+共掺杂 光催化活性 |
Preparation and Properties of Fe3+/La3+ Codoped Nano-TiO2 |
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| ZHOU Juan , WANG Bo , ZHANG Xin-lei , CHANG Jia-zhong , WANG Zhen-ling.Preparation and Properties of Fe3+/La3+ Codoped Nano-TiO2[J].Journal of Henan Normal University(Natural Science),2012,40(1):89-92. | |
| Authors: | ZHOU Juan WANG Bo ZHANG Xin-lei CHANG Jia-zhong WANG Zhen-ling |
| Institution: | 1b(1 a.Department of Chemistry;b.Analytical and Testing Centre,Zhoukou Normal University,Zhoukou 466001,China; 2.The Environment Supervision Station of Zhoukou Environment Protection Bureau,Zhoukou 466000,China) |
| Abstract: | A series of Fe3+/La3+ codoped nano-TiO2 powder have been synthesized using sol-gel method and characterized by X-ray powder diffraction(XRD),scanning electron microscope(SEM),energy dispersive X-ray spectroscopy(EDS),Uv-Vis absorption spectroscopy and IR spectroscopy techniques.Their photocatalytic activities for degradation of methyl orange under UV-light irradiation are also measured.As has been found that Fe3+,La3+ doped can restrain the growing of grain size,improve the dispersion of nano-TiO2 powder.The absorption intensities of Fe3+/La3+ codoped nano-TiO2 increase.The degradation rate of MO by Fe3+/La3+ codoped nano-TiO2 nanoparticles reaches over 98% under ultraviolet light for 2 h. |
| Keywords: | sol-gel method nano-TiO2 Fe3+/La3+codoped photocatalytic activity |
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