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	PEG-Pt／TiO_2光催化剂的制备及其产氢性能的研究
	孙巍 ; 毛宗强 ; SUN Wei ; MAO Zong-qiang
	2010-07-15 ; 2010-07-15
会议名称	第七届全国氢能学术会议论文集 ; Proceedings of the 7th Chinese Hydrogen Energy Conference ; 第七届全国氢能学术会议 ; The 7th Chinese Hydrogen Energy Conference ; 中国湖北武汉 ; CNKI ; 中国可再生能源学会氢能专业委员会
关键词	PEG TiO2 光催化 产氢活性 PEG TiO2 photocatalysis hydrogen evolution TQ116.2
其他题名	The Preparation and Photocatalytic Properties of PEG Modified Pt/TiO_2 Photocatalysts for Photocatalytic Hydrogen Evolution
中文摘要	选取不同分子量的聚乙二醇(PEG)对TiO2光催化剂进行改性,采用溶胶凝胶法制备了PEG改性的 TiO2光催化剂(PEG-TiO2),通过XRD、SEM和BET分析方法对催化剂的物相、表面形貌及比表面大小进行了表征,对载Pt后的样品PEG-Pt／TiO2进行了光催化产氢性能的研究。重点分析了PEG分子量对样品微观结构和光催化产氢活性的影响,结果表明,使用分子量在400～6 000范围内的PEG进行改性,可获得具有高比表面和良好孔分布的TiO2载体,样品PEG-Pt／TiO2的光催化产氢活性较无PEG改性的样品得到了显著提高。其中样品 PEG6000-Pt／TiO2的产氢活性表现最佳,测得4 h内的平均产氢速率为1．79 mmol／h。; Polyethylene glycol (PEG) with different molecular weight (400, 2 000, 6 000, 20 000) were used to synthesize PEG-modified-TiO2 photocatalysts by sol-gel method. The PEG-TiO2 photocatalysts were analyzed on crystal structure, morphology and surface area by characterizations of XRD, SEM, BET. With 0.3% platinum loaded by photocomposition method, the resulted PEG-Pt/TiO2 samples were applied to the photocatalytic reaction of hydrogen evolution from ethanol solutions. The effect of PEG used with different molecular weight on the microstructure and photocatalytic performance of PEG-TiO2 photocatalysts were studied in details. The Results showed that relatively high surface area and good distribution of pore stucture could be obtained with the modification by PEG with molecular weight from 400 to 6 000. Consequently, the photocatalytic performance on hydrogen evolution of PEG-Pt/TiO2 photocatalysts was remarkably enhanced compared to samples without modifications of PEG. The PEG6000-Pt/TiO2 behaved the best with average hydrogen evolution rate of 1.79 mmol/h in 4 hours.; 国家973项目(2003CB214500); 教育部博士基金项目(20030003069)
会议录出版者	武汉理工大学学报编辑部
语种	中文 ; 中文
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/66212]
专题	清华大学
推荐引用方式 GB/T 7714	孙巍,毛宗强,SUN Wei,等. PEG-Pt／TiO_2光催化剂的制备及其产氢性能的研究[C]. 见:第七届全国氢能学术会议论文集, Proceedings of the 7th Chinese Hydrogen Energy Conference, 第七届全国氢能学术会议, The 7th Chinese Hydrogen Energy Conference, 中国湖北武汉, CNKI, 中国可再生能源学会氢能专业委员会.

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