Charge-Selective Photocatalytic Degradation of Organic Dyes using Halloysite Nanotubes

This study explores the use of Halloysite NanoTubes (HNTs) as photocatalysts capable of
decomposing organic dyes under exposure to visible or ultraviolet light. We observe that the extent of RhB
photocatalytic degradation in 100 min in the presence of the HNTs is ~4 times higher compared to
that of bare RhB. Moreover, under optimized conditions, the as-extracted photodegradation rate of
RhB (~0.0022 /min) is comparable to that of the previously reported work on the photodegradation
of RhB in the presence of tubular nanostructures. A parallel effect is observed for anionic Coumarin
photodegradation, albeit less efficiently. By leveraging the unique properties of HNTs, a family of naturally occurring
nanotube structures, this research offers valuable insights for optimizing photocatalytic systems in
the pursuit of effective and eco-friendly solutions for environmental remediation.