论文部分内容阅读
近年来,杂多酸和氧化物催化剂表面的类似性引起了人们的广泛兴趣。钼杂多酸具有光化学活性,在不同种类有机溶剂存在下,紫外或可见光辐照就形成杂多蓝还原产物及相应的有机物氧化产物。从乙醇或1,4-二噁烷中沉淀出来的杂多酸化合物(简称HPC)在日光下也变成蓝色。HPC还原时形成多电子还原产物—杂多蓝(简称HPB)。这种多个还原电子体系可能作为还原N_2,CO和H_2O的还原剂。杂多酸光催化大量有机物的氧化反应,以及水放氢的还原反应,是一个活跃的研究领域之一。本文研究了Dawson结构P_2Mo_(18)~(6-)的光化
In recent years, the similarities between the surface of heteropolyacid and oxide catalysts have aroused widespread interest. Molybdic heteropolyacid has photochemical activity. Under the presence of different kinds of organic solvents, heteropoly blue reduction products and the corresponding oxidation products of organic compounds are formed by UV or visible light irradiation. Heteropolyacid compounds (HPC) precipitated from ethanol or 1,4-dioxane also turn blue in daylight. HPC reduced the formation of multi-electron reduction product - heteropoly blue (HPB). This multiple reduction electron system may act as a reductant for the reduction of N 2, CO and H 2 O. Heteropolyacid photocatalytic oxidation of a large number of organic matter, as well as the reduction of water to the hydrogen reduction reaction is one of the active areas of research. In this paper, the photochemistry of Dawson structure P_2Mo_ (18) ~ (6-) is studied