Arrays of Au-TiO2 Janus-like nanoparticles fabricated by block copolymer templates and their photocatalytic activity in the degradation of methylene blue

- Fabrication of an array of Au-titania Janus nanoparticles on silicon substrate.
- PS-b-PEO block copolymer is used as templates.
- Au-TiO2 Janus-like nanoparticles exhibit higher photocatalytic activity.