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

Journal of the Brazilian Chemical Society

Universidade Estadual de Maringá, Maringá, Brazil¹  Chiavelli, Lucas U. R.¹  Milano, Lorena M.¹  Almeida, Vitor de C.¹  Souza, Maísa Tatiane F. de¹  Ambrosio, Elizangela¹  Garcia, Juliana C.¹  Montanher, Paula F.¹  Souza, Nilson E.¹  Visentainer, Jesuí V.¹ 

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

DOI  :  10.5935/0103-5053.20140036

学科分类：化学（综合）

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】

Unknown