Article ID Journal Published Year Pages File Type
1551968 Solar Energy 2008 6 Pages PDF
Abstract

In a laboratory study, the effectiveness of zinc oxide-mediated solar photocatalytic degradation of phenol was examined. The effect of various parameters like concentration of substrate, amount of photocatalyst, pH and irradiation time on the efficiency of photocatalytic degradation was studied. The demineralization of substrate was checked by Chemical Oxygen Demand (COD) reduction method. The photocatalytic degradation of phenol was found to be more effective under solar light in comparison to artificial visible light irradiation. It was observed that photodegradation of phenol is favorable in weakly acidic or neutral solutions. Zinc oxide can be reused for five times as it undergoes photocorrosion only to the negligible extent. This work envisages great potential that sunlight mediated photocatalysis has in the removal of phenol from waste water.

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Physical Sciences and Engineering Energy Renewable Energy, Sustainability and the Environment
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