Journal article

DYE-SENSITIZED PHOTOOXIDATION OF ANTHRACENE AND ITS DERIVATIVES IN NAFION MEMBRANE

EP NIU, AWH MAU, KP GHIGGINO

AUSTRALIAN JOURNAL OF CHEMISTRY | C S I R O PUBLICATIONS | Published : 1991

Abstract

The methylene blue (MB) sensitized photooxidations of anthracene (AN), 9,10-diphenyl-anthracene (DPA) and 2-dimethylaminoanthracene (DMA) have been studied in ethanol and in Nafion, a perfluorinated polymer with sulfonate groups. Spectroscopic studies indicate that the incorporated chromophores are heterogeneously distributed in the micelle-like polymer. The uncharged aromatic hydrocarbons are located in the non-polar polymer backbone region while the positively charged species reside at the interface of aqueous cluster regions in the membrane. The MB-sensitized photooxidations of all anthracenes are faster in Nafion than in ethanol. Furthermore the photooxidation of AN is 1.6 times higher i..

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University of Melbourne Researchers