Charge-Selective Photocatalytic Degradation of Organic Dyes using Halloysite Nanotubes

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