| 介孔复合半导体NiO-TiO2的制备与光响应性能 |
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| 引用本文： | 王希涛,贺忠,钟顺和. 介孔复合半导体NiO-TiO2的制备与光响应性能[J]. 无机材料学报, 2009, 24(2): 215. DOI: 10.3724/SP.J.1077.2009.00215 |
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| 作者姓名： | 王希涛 贺忠 钟顺和 |
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| 作者单位： | 天津大学 化工学院， 天津 300072 |
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| 基金项目： | 国家自然科学基金，国家重大基础理论研究前期专项项目 |
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| 摘 要： | 采用模板剂法制备了系列NiO-TiO2复合半导体，用N2吸附-脱附、XRD、TPR、TEM和UV-Vis DRS等方法对半导体材料的孔结构、表面构造、能带结构与其吸光特性进行了分析. 结果表明：所制备的NiO-TiO2为介孔结构的纳米管或带，其比表面积超过100m2/g；NiO在TiO2表面分散均匀，并部分形成NiTiO3固熔体；NiO与TiO2间存在明显的复合效应，当NiO含量由2%增加至10%时，其Eg值由3.82eV降至3.49eV，有效地拓展了光响应范围.
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| 关 键 词： | 介孔 复合半导体材料 NiO-TiO2 光响应性能 |
| 收稿时间： | 2008-06-24 |
| 修稿时间： | 2008-09-07 |
Preparation and Photo Absorption Property of Coupled Semiconductor NiO-TiO2 |
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| WANG Xi-Tao,HE Zhong,ZHONG Shun-He. Preparation and Photo Absorption Property of Coupled Semiconductor NiO-TiO2[J]. Journal of Inorganic Materials, 2009, 24(2): 215. DOI: 10.3724/SP.J.1077.2009.00215 |
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| Authors: | WANG Xi-Tao HE Zhong ZHONG Shun-He |
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| Affiliation: | College of Chemical Engineering and Technology，Tianjin University，Tianjin 300072，China |
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| Abstract: | NiO-TiO2 coupled semiconductors were synthesized by organic templates method．Their pore distribution, crystal structure，surface composition and photo absorption properties were investigated by techniques of N2 adsorption desorption, XRD, TPR, TEM and UV-Vis DRS. The results show that the NiO-TiO2 coupled semiconductors prepared by organic templates exist in nanotube or nanobelt with mesporous structure, and the BET surface area is higher than 100m2/g. The NiO particles disperse well on the surface of TiO2, and the strong interaction between NiO and TiO2 results in the formation of NiTiO3. The p-n couple effect of NiO and TiO2 extends distinctly the photo absorption field and decreases the Eg from 3.82eV to 3.49eV when the addition amout of NiO is increased from 2% to 10%. |
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| Keywords: | NiO-TiO2 |
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