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Heterogeneous photocatalytic mineralisation of phenols in aqueous solutions

Heterogeneous photocatalytic mineralisation of phenols in aqueous solutions,10.1016/j.molcata.2003.08.032,Journal of Molecular Catalysis A-chemical,S.

Heterogeneous photocatalytic mineralisation of phenols in aqueous solutions   (Citations: 35)
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The photocatalytic oxidation of phenol and chlorophenols were studied in the presence of ZnO in a batch reactor configuration illuminated with a 6W low pressure mercury lamp. The variables studied include catalyst usage, solution pH and phenol concentration. The degradation rate of phenol was favourable in the neutral pH range. However, o-chlorophenol and p-chlorophenol undergo degradation at a faster rate at lower pH values. The disappearance of phenols in each case approximately obeyed first-order kinetics with the apparent first-order decay constant increasing with decreasing solute concentration. Total organic carbon analysis indicated complete mineralisation of phenols on ZnO surface.
Journal: Journal of Molecular Catalysis A-chemical - J MOL CATAL A-CHEM , vol. 223, no. 1, pp. 101-105, 2004
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