| 层状纳米光催化复合材料H0.8Fe0.8Ti1.2O4/TiO2的合成及性质 |
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| 引用本文： | 李涛海,吴季怀,林建明,程应汉.层状纳米光催化复合材料H0.8Fe0.8Ti1.2O4/TiO2的合成及性质[J].分子催化,2004,18(4):300-303. |
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| 作者姓名： | 李涛海 吴季怀 林建明 程应汉 |
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| 作者单位： | 华侨大学,材料物理化学研究所,福建,泉州,362011 |
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| 基金项目： | 国家自然科学基金资助项目(50082003, 50372022); 福建省国际合作项目(2001I006). |
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| 摘 要： | 用固相合成法制备出K0.8Fe0.8Ti1.2O4,并用离子交换反应制备出H0.8Fe0.8Ti1.2O4;通过C3H7NH2层间膨胀,TiO2粒子的插入和紫外光分解等反应,合成出一种新的层状光催化纳米复合材料-H0.8Fe0.8Ti1.2O4/TiO2.X射线衍射和漫反射等表征结果表明 该样品的层间高度为0.47nm,禁带能隙为2.18和2.88eV.用(>400 nm的光照射30 min,0.4 g样品可使甲基橙溶液(20 mg/L)的降解率达到22.1%.而同样条件下标准TiO2(P-25)仅为6.2%,表明所研制的层状纳米复合材料具有较高的光催化活性.
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| 关 键 词： | 光催化 复合材料 H0.8Fe0.8Ti1.2O4／TiO2 离子交换 |
| 文章编号： | 1001-3555(2004)04-0300-04 |
| 修稿时间： | 2003年12月9日 |
Systhesis and Property of H0.8Fe0.8Ti1.2O4/TiO2 Layered Nancomposite Photocatalyst |
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| LI Tao-hai,WU Ji-huai,LIN Jian-ming,CHENG Ying-han.Systhesis and Property of H0.8Fe0.8Ti1.2O4/TiO2 Layered Nancomposite Photocatalyst[J].Journal of Molecular Catalysis (China),2004,18(4):300-303. |
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| Authors: | LI Tao-hai WU Ji-huai LIN Jian-ming CHENG Ying-han |
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| Abstract: | H_(0.8)Fe_(0.8)Ti_(1.2)O_4 was prepared by calcining stoichiometric mixture of K_2CO_3, TiO_2 and Fe_2O_3 followed by ion exchange reaction with HCl solution. H_(0.8)Fe_(0.8)Ti_(1.2)O_4/TiO_2 layered nanocomposite photocatalyst was synthesized by successive reaction of H_(0.8)Fe_(0.8)Ti_(1.2)O_4 with C_3H_7NH_2 and TiO_2 sol followed by irradiating of UV light irradiation. The results of XRD, DRS indicated that , for H_(0.8)Fe_(0.8)Ti_(1.2)O_4/TiO_2 , the gallery height was 0.47 nm, the band gap energy was 2.18 eV and 2.88 eV. Under irradiation with (>400 nm, the decomposition ratio of methyl orange solution by using (H_(0.8)Fe_(0.4)Ti_(1.6)O_4/)TiO_2 as catalyst was (22.1%) higher than that by TiO_2(P-25)(6.2%). |
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| Keywords: | Photocatalyst Nanocomposite Layered compound Intercalation reaction |
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