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Abstract
SnO2 thin films synthesized by sol-gel are irradiated with reactor neutrons up to fast neutron fluence of 9.6 × 1017 neutrons cm–2 at 40°C. The influence of defects generated by neutrons irradiation, through the properties modification, on the photo-catalytic activity of SnO2 films is investigated. It is found that the photoactivity of the irradiated films is enhanced after reactor neutrons irradiation. An improvement of 41% is observed for the sample irradiated at a neutron fluence of 9.6 × 1017 neutrons cm–2. This is attributed to several parameters modified by the reactor neutron irradiation principally the crystallite size and space charge region which are closely related to the photocatalytic performance.
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