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Experimental and theoretical insights into the photochemical decomposition of environmentally persistent perfluorocarboxylic acids.

Water research (2016-08-11)
Ruijuan Qu, Jiaoqin Liu, Chenguang Li, Liansheng Wang, Zunyao Wang, Jichun Wu
ABSTRACT

Decomposition of perfluorocarboxylic acids (PFCAs) is of great significance due to their global distribution, persistence and toxicity to organisms. In this study, the photodegradation of a series of PFCAs (∼C2C12) in water by a medium-pressure mercury lamp was experimentally and theoretically examined. We found that photolysis of PFCAs all follow pseudo-first-order kinetics with the rate constant (k

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Perfluorononanoic acid, 97%
Sigma-Aldrich
Perfluorodecanoic acid, 98%