Chapter 4 - Semiconductor Nanocrystals for Environmental Catalysis

Abstract

The unique optical, electronic, and magnetic properties of semiconductor nanocrystals (NCs) or quantum dots (QDs) have been paid increasing attention over the past few decades. Specifically, the attractive charge transfer feature of QDs derives from the quantum confinement effect, providing significant advantages as charge donors for catalytic reactions and sensitizers for photovoltaics. In this chapter, the unique electronic structure and optimized preparation routes have been overviewed. Then compositions, nanostructures, and related applications have been summarized in detail. Finally, a host of catalyst preparation methods and applications in CO2 photoreduction and environment treatment have been comprehensively introduced and discussed to give insight into the design and modification approaches used in NC-based catalysts.