Study of biodiesel photodegradation through reactions catalyzed by Fenton's reagent

Journal of the Brazilian Chemical Society

Elizangela Ambrosio¹  Lorena M. Milano¹  Maísa Tatiane F. De Souza¹  Lucas U. R. Chiavelli¹  Paula F. Montanher¹  Jesuí V. Visentainer¹  Vitor De C. Almeida¹  Nilson E. Souza¹  Juliana C. Garcia¹ 

[1] ,Universidade Estadual de Maringá Departamento de Química Maringá PR ,Brazil

关键词: photodegradation;    Fenton reactions;    biodiesel;    bioassay;    advanced oxidation processes;   

DOI  :  10.5935/0103-5053.20140036

来源: SciELO

【 摘 要 】

This study reports on the photodegradation of biodiesel in contact with water using the photo-Fenton reaction. After 360 h of photodegradation, we observed a reduction of 73% in the amount of fatty acid methyl esters (FAMEs) initially quantified by gas chromatography coupled with a flame ionization detector (GC/FID). During the photodegradation, peaks for ketones and epoxy groups in carbon chains were recorded by gas chromatography coupled with mass spectrometry (GC/MS), and typical aldehyde and short-chain fatty acid shifts in hydrogen nuclear magnetic resonance spectroscopy (¹H NMR) were observed. Ecotoxicity assays with Artemia salina revealed the presence of toxic components in the aqueous phase in increasing amounts up to 168 h of photodegradation and decreasing thereafter.

【 授权许可】

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