Abstract
This study provides a new paradigm for the degradation of toxic organic compounds. Zinc oxide thin film was deposited on the inner wall of a glass tube using ultrasonic spray pyrolysis technique and the UV LED lamps were used for photocatalytic application. The atomic force microscopy (AFM) observation showed that the surface morphology of the film is almost homogeneous. The PL spectrum allowed us to confirm that the trapped electrons via defects in the ZnO film increased the photocatalytic activity. UV–vis spectrometry reveals a dye degradation efficiency of 100% which confirm a complete removal of methylene blue (MB) after 240 min.
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