On-line Mass Spectrometry Study of Photocatalytic Reduction of Aromatic Nitro Compounds
In this study,a photocatalytic mechanism monitoring method was established for the combination of photocatalytic reduction on paper and paper spray mass spectrometry in tubes.The photocatalyst Bi2MoO6,which could effectively photocatalytically reduce 4-nitrobenzoic acid and 8-nitroquinoline,was screened,and the photocatalytic reduction mechanism was speculated as follows:these compounds were first reduced to intermediate compounds containing nitroso and hydroxylamine groups,and finally reduced to the corresponding aromatic amine compounds.The optimal reaction conditions were also optimized.This online mass spectrometry monitoring method has the characteristics of being clean and pollution-free,high sensitivity,and simple operation,and is expected to provide new ideas for the research and regulation of important intermediates in other chemical production processes.
mass spectrometryphotocatalysisreduction reactionsnitroreaction intermediates
万方数据
维普
