Trichloroethylene, TCE, a volatile industrial solvent used for degreasing metal prior to electroplating has been identified as a human carcinogen and contaminant. Titanium dioxide nanoparticles, TiO2 NPs, with their small size, resultant large surface area, and photocatalytic properties offer new pathways to purification. TiO2 is capable of crystallizing in three polymorphic structures: anatase, rutile, and brookite. The dimensionality of these structures influences the properties, such as the surface area, adsorption, and its photocatalytic activity. Anatase, rutile, and mixture of both, have been studied intensively in the past; however, studies with brookite form are limited. In this study, purchased and synthesized anatase and brookite TiO2 NPs have been used for TCE degradation and their photocatalytic properties were compared and analyzed.

Comparison of brookite and anatase TiO2 nanoparticles in the photodegradation of TCE

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