Carbon nanotubes as an auxiliary catalyst in heterojunction photocatalysis for solar hydrogen

- Carbon nanotubes (CNTs) effectively catalyze H2 production in CdS/TiO2/Pt under visible light.
- The use of Pt is reduced by maximal one-tenth by the additional loading of CNTs.
- Charge recombination is significantly inhibited by the loading of Pt and CNTs.
- Photocurrent generation is maximized by the loading of Pt and CNTs.