Abstract：
:In this work, the photocatalytic degradation of aqueous microcystin-LR was studied using TiO(2) and ZnO as photocatalysts. The process was optimised and characterised at the bench scale (200 mL); both semiconductors exhibited a high degradation capacity at reaction times of 1 min (degradation greater than 95%). The transient species that were observed indicate that the degradation occurs via the multiple hydroxylation and elimination of the labile peptide residues of the molecule. When photocatalysis was applied in a continuous treatment system (20-50 L), the photocatalytic process exhibited a high degradation efficiency, which resulted in residual microcystin-LR concentrations that were less than 1 μg L(-1) (C(0)=5 μg L(-1)).
journal_name
Chemospherejournal_title
Chemosphereauthors
Jacobs LC,Peralta-Zamora P,Campos FR,Pontarolo Rdoi
10.1016/j.chemosphere.2012.09.004subject
Has Abstractpub_date
2013-01-01 00:00:00pages
1552-7issue
4eissn
0045-6535issn
1879-1298pii
S0045-6535(12)01130-7journal_volume
90pub_type
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