Photocatalytic interactions of a series of arylamines, for example 1,4-phenylenediamine, 1,2-phenylenediamine, 4-aminophenol, and 2-aminophenol, at low concentrations in typical primary alcohols have been investigated in the presence of anatase TiO2 nanopowder. GC–MS analysis of the irradiated solutions showed that, except for 1,2-phenylenediamine, 10 mmol/l alcoholic solutions of the arylamines gave predominately the corresponding imines. Irradiation of 2-aminophenol under these conditions, led to oxidation and dimerization to 2-amino-3H-phenoxazin-3-one.
在存在
锐钛矿型TiO2纳米粉末的情况下,研究了一系列芳香胺(例如1,4-
苯二胺、1,2-
苯二胺、4-
氨基苯酚和
2-氨基苯酚)在典型的初级醇中低浓度的光催化相互作用。GC–MS分析照射后的溶液显示,除了1,2-
苯二胺外,芳香胺的10 mmol/L醇溶液主要生成了相应的
亚胺。在这些条件下照射
2-氨基苯酚,导致其氧化和二聚为2-
氨基-3H-苯并
噁唑-3-酮。