Page 218 - Multifunctional Photocatalytic Materials for Energy

202 Multifunctional Photocatalytic Materials for Energy

Reduction e − h + Oxidation Small particle

Nanoparticle

Migration
Reduction e − h + Oxidation Large particle
Small particle Surface area versus particle size (left); visual relationship between size particle and charge diffusion (right); crystal

Defects
SA =162 nm 2

Large particle
1 nm

1.5 nm SA= 108 nm 2

3 nm defects versus particle size (center).
SA= 54 nm 2 Fig. 9.10