| Pt/三苯胺酸卟啉酯纳米复合物的制备及光催化加氢反应 |
| Platinum/TDPAPE Nanocomposite: Preparation and Photocatalytic Hydrogenation of m-Phenoxy Benzaldehyde |
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| 摘要: 采用乙二醇还原法，以三苯胺酸卟啉酯分子(TDPAPE)为稳定剂制备了Pt/TDPAPE纳米复合物。通过UV-Vis、TEM、FTIR、XRD、荧光分析等方法对纳米复合物进行了表征。TDPAPE通过卟啉环上的四个N原子与金属Pt纳米粒子配位，Pt/TDPAPE纳米复合物在溶胶中及在反应过程中均具有很好的稳定性。采用Pt/TDPAPE纳米复合物作为催化剂，在光照下，利用光分解水产生的氢气直接还原间苯氧基苯甲醛生成间苯氧基苯甲醇，常压常温下反应12 h转化率可以达到50%。 |
| 关键词: Pt 三苯胺酸卟啉酯 纳米复合物 间苯氧基苯甲醛 光催化 |
| 基金项目: |
| Abstract: Platinum core-5,10,15,20-tetra-(4-diphenylaminobenzoic acid phenyl) porphyrinyl ester shell nanocom-posite was prepared using a glycol reduction method. The nanocomposite was characterized with UV-Vis, TEM, FTIR, XRD, and fluorescence spectroscopy, respectively. The nanocomposite is stable both in the colloidal solution and in the reaction process since 5,10,15,20-tetra-(4-diphenylaminobenzoic acid phenyl) porphyrinyl ester (TDPAPE) can coordinate with Pt nanoparticles through four nitrogen atoms of porphyrin. When Pt/TDPAPE nanocomposite was used as a catalyst and EDTA as a sacrificial electron donor, hydrogen was produced from photodecomposition of water under irradiation of UV-Vis light. The hydrogen produced in-situ could be used as a reducing agent for catalytic hydrogenation of m-phenoxy benzaldehyde to m-phenoxy benzalcohol. The conversion of m-phenoxy benzaldehyde was ca 50% at ambient conditions. |
| Keywords: Platinum 5,10,15,20-tetra-(4-diphenylaminobenzoic acid phenyl) porphyrinyl ester nanocomposite m-phenoxy benzalde-hyde photocatalysis |
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| 李 磊,程满环,杜玉扣,李宝宗,王筱梅,杨 平.Pt/三苯胺酸卟啉酯纳米复合物的制备及光催化加氢反应[J].无机化学学报,2008,24(2):229-234. |
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