| 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,(4):300-303 |
| 层状纳米光催化复合材料H0.8Fe0.8Ti1.2O4/TiO2的合成及性质 |
| Systhesis and Property of H0.8Fe0.8Ti1.2O4/TiO2 Layered Nancomposite Photocatalyst |
| 修订日期：2003-12-09 |
| DOI： |
| 中文关键词: 光催化 复合材料 H0.8Fe0.8Ti1.2O4／TiO2 离子交换 |
| 英文关键词:Photocatalyst,Nanocomposite,Layered compound,Intercalation reaction |
| 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). |
| 李涛海 吴季怀 林建明 程应汉 |
李涛海(华侨大学,材料物理化学研究所,福建,泉州,362011)
;吴季怀(华侨大学,材料物理化学研究所,福建,泉州,362011)
;林建明(华侨大学,材料物理化学研究所,福建,泉州,362011)
;程应汉(华侨大学,材料物理化学研究所,福建,泉州,362011)
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| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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