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Multifunctional Photocatalytic Materials for Energy
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Small particle
Oxidation
Reduction
h +
e −
Migration
Large particle
Oxidation
Reduction
h +
e −
Defects Nanoparticle Small particle Surface area versus particle size (left); visual relationship between size particle and charge diffusion (right); crystal
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
