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Degradation of aqueous solutions of camphor by heterogeneous photocatalysis [An article from: Journal of Hazardous Materials]
Description
This digital document is a journal article from Journal of Hazardous Materials, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
In this study the photocatalytic degradation of aqueous solutions of camphor was investigated by using TiO"2 and ZnO photocatalysts. In the presence of artificial UV-light the highly photosensitive camphor was almost totally degraded after reaction times of 60min. However, under these conditions the mineralization degree was lower than 25%. In the presence of semiconductors the degradation was complete after a treatment time of about 30min. Moreover, the mineralization was considerably greater, mainly with the use of TiO"2 (>80% at reaction time of 60min). Heterogeneous photocatalytic processes applied in the presence of solar radiation show a promising degradation capability. TiO"2-based processes afforded mineralization degrees of about 90% after a reaction time of 120min, when the system was assisted by aeration.
Description:
In this study the photocatalytic degradation of aqueous solutions of camphor was investigated by using TiO"2 and ZnO photocatalysts. In the presence of artificial UV-light the highly photosensitive camphor was almost totally degraded after reaction times of 60min. However, under these conditions the mineralization degree was lower than 25%. In the presence of semiconductors the degradation was complete after a treatment time of about 30min. Moreover, the mineralization was considerably greater, mainly with the use of TiO"2 (>80% at reaction time of 60min). Heterogeneous photocatalytic processes applied in the presence of solar radiation show a promising degradation capability. TiO"2-based processes afforded mineralization degrees of about 90% after a reaction time of 120min, when the system was assisted by aeration.
