Performance Evaluation of Fluorescence and Photostability of Coumarin Disperse Yellow 82

作     者：Aba Akebi Atta-Eyison 

作者机构：Department of Industrial and Health Sciences Takoradi Technical University Takoradi Ghana 

出 版 物：《Journal of Materials Science and Chemical Engineering》 (材料科学与化学工程（英文）)

年 卷 期：2020年第8卷第1期

页      面：11-19页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

主　　题：Disperse Dye Relative Strength Reflectance Light Fastness Quantum Yield 

摘      要：This paper describes some significant fluorescent and photostability properties of Coumarin Disperse Yellow 82. The study aims at spectrophotometric colour measurements on fluorescence of Coumarin Disperse Yellow 82. Spectral parameters such as relative strength percentage and reflectance with different dye concentrations performance on polyester and polyester/cotton substrates were assessed. Light fastness property was also evaluated. Evaluation of photodegradation quantum yield of the dye in methanol, ethanol and N,N-dimethylformamide (DMF) under aerobic and anaerobic conditions have also been investigated. The relative strength, reflectance and light fastness of dyed polyester for the different dye concentrations were proven to be better in comparison to dyed polyester/cotton blend. The photodegradation quantum yield of dye in methanol, ethanol and DMF solutions under anaerobic condition showed higher dye photodegradation quantum in DMF for the various concentrations of dye used. Under aerobic condition irradiation under nitrogen atmosphere attained higher degradation whereas the presence of air reduced degradation.