Imazalil sulphate pesticide degradation using silver loaded hollow anatase TiO2 under UV light irradiation
DOI:
https://doi.org/10.11113/mjfas.v12n2.474Keywords:
Silver nanoparticles, hollow anatase TiO2, imazalil sulphate, UV irradiation, photodegradation.Abstract
Silver loaded hollow anatase TiO2 particles with the location of silver are inside (Ag@TiO2) and outside (Ag/TiO2) the hollow TiO2 structure have been successfully synthesized by a deposition-precipitation and template methods. The effects of silver nanoparticles location on Ag@TiO2 andAg@TiO2 has been evaluated in the photodegradation efficiency of imazalil sulphate pesticide in aqueous suspension under ultraviolet irradiation. The Ag/TiO2 showed better photocatalytic performance for the degradation of imazalil sulphate, compared to Ag@TiO2 and hollow TiO2 microspheres. A higher photocatalytic activity of Ag/TiO2 compared to Ag@TiO2 and hollow TiO2 can be considered as an evidence of enhanced charge separation of Ag/TiO2 photocatalyst as confirmed by photoluminescence spectroscopy.
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