水悬浮液中二氧化碳光还原生成甲酸：酞菁/二氧化钛和卟啉/二氧化钛催化过程的比较
Photoreduction of carbon dioxide to formic acid in aqueous suspension: a comparison between phthalocyanine/TiO2 and porphyrin/TiO2 catalysed processes.
作者信息
Mele Giuseppe, Annese Cosimo, D'Accolti Lucia, De Riccardis Alberto, Fusco Caterina, Palmisano Leonardo, Scarlino Anna, Vasapollo Giuseppe
机构信息
Department of Engineering for Innovation, University of Salento, via Arnesano, Lecce 73100, Italy.
CNR-ICCOM UOS of Bari, Chemistry Department, University of Bari, Via Orabona, 4, Bari 70126, Italy.
出版信息
Molecules. 2014 Dec 30;20(1):396-415. doi: 10.3390/molecules20010396.
Composite materials prepared by loading polycrystalline TiO2 powders with lipophilic highly branched Cu(II)- and metal-free phthalocyanines or porphyrins, which have been used in the past as photocatalysts for photodegradative processes, have been successfully tested for the efficient photoreduction of carbon dioxide in aqueous suspension affording significant amounts of formic acid. The results indicated that the presence of the sensitizers is beneficial for the photoactivity, confirming the important role of Cu(II) co-ordinated in the middle of the macrocycles. A comparison between Cu(II) phthalocyanines and Cu(II) porphyrins indicated that the Cu(II)- phthalocyanine sensitizer was more efficient in the photoreduction of CO2 to formic acid, probably due to its favorable reduction potential.
通过将多晶二氧化钛粉末负载亲脂性高度支化的铜（II）和无金属酞菁或卟啉制备的复合材料，过去已用作光降解过程的光催化剂，现已成功测试其在水悬浮液中高效光还原二氧化碳生成大量甲酸的性能。结果表明，敏化剂的存在有利于光活性，证实了在大环中间配位的铜（II）的重要作用。铜（II）酞菁和铜（II）卟啉之间的比较表明，铜（II）-酞菁敏化剂在将二氧化碳光还原为甲酸方面更有效，这可能归因于其有利的还原电位。
Zotero 插件