Photocatalytic conversion of nitroaromatic compounds in the presence of TiO2

被引：62

作者：

Hakki, Amer ^{[1
]}

Dillert, Ralf ^{[1
]}

Bahnemann, Detlef ^{[1
]}

机构：

[1] Leibniz Univ Hannover, Inst Tech Chem, D-30167 Hannover, Germany

来源：

CATALYSIS TODAY | 2009年 / 144卷 / 1-2期

关键词：

Photocatalysis; Nitroaromatic compounds; Quinolines; Reaction mechanism; VAPOR-PHASE SYNTHESIS; ONE-STEP SYNTHESIS; TITANIUM-DIOXIDE; REDUCTION; MECHANISM; OXIDATION; QUINOLINE; ALCOHOLS; IMINES;

D O I：

10.1016/j.cattod.2009.01.029

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The combination of a solid photocatalyst (TiO2) and a co-catalyst (p-toluenesulfonic acid) has been successfully applied for the light-induced conversion of five different derivatives of nitrobenzene (o-nitrotoluene (o-NT), m-nitrotoluene (m-NT), p-nitrotoluene (p-NT), 5-nitro-m-xylene (DMNB), and p-nitrophenol (p-NPh)) in O-2-free ethanolic suspensions yielding substituted quinolines and tetrahydroquinolines. GC-MS analysis of the irradiated mixtures showed the formation of substituted quinolines as the main products when DMNB, m-NT, and p-NPh were employed as substrates, while ethoxy-tetrahydroquinolines were obtained when o- and p-NT were used. DMNB has been chosen as model substrate for a more detailed study focusing on the influence of the concentration of the photocatalyst, the co-catalyst, and the nitroaromatic compound on the yield of the products. Depending on the compounds that have been detected by GC-MS the reaction mechanism is discussed. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：154 / 159

页数：6

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