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Abstract This study investigates the photoassisted processes, namely direct photolysis (DP), heterogeneous photocatalysis (HP) and photoelectrolysis (PEC), in 2,4,6-Tribromophenol (TBP) abatement, mineralization and debromination. Electric energy per order (E EO… Click to show full abstract
Abstract This study investigates the photoassisted processes, namely direct photolysis (DP), heterogeneous photocatalysis (HP) and photoelectrolysis (PEC), in 2,4,6-Tribromophenol (TBP) abatement, mineralization and debromination. Electric energy per order (E EO ), degradation kinetic ( k ′), half-life time ( t 1/2 ) and toxicity were also evaluated. The results showed that the direct photolysis process is an important TBP debromination and oxidation pathway. However, the DP process leads to higher by-product formation, presenting phytotoxicity and genotoxicity. The hydroxyl radical based processes (HP and PEC) showed higher mineralization and also decreased toxicity. This indicates that hydroxyl radicals based processes represent a chief route for diminishing the overall environmental impact of TBP.
Journal Title: Journal of Catalysis
Year Published: 2017
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