Use of Pt/TiO₂ and optically channeled LED–UV efficiently photodegraded CS₂.

Less surface OH groups coincided with better reaction rates and photonic efficiency.

Pt-blocked active sites on Pt/TiO₂ slightly lowered the 337315301090&_mathId=si5.gif&_user=111111111&_pii=S0926337315301090&_rdoc=1&_issn=09263373&md5=cbd5002c321841acbe148c88504c600e">337315301090-si5.gif">$K_{\mathrm{a}\mathrm{d}\mathrm{s}}^{\mathrm{a}\mathrm{p}\mathrm{p}}$ than that of bare TiO₂.

Pt-imparted LSPR effects in Pt/TiO₂ resulted in far superior kLH to that of bareTiO₂.

Fluorescence and thermographic analyses confirm plasmon-driven photodegradation.