Cadmium sulfide is a II-VI compound semiconductor with a direct band gap in the visible, examined mostly as a photocatalyst and as a quantum dot. Immobilising the sulfide on a polymer support was an early route to photocatalytic hydrogen sulfide splitting [1]. Embedding gold quantum dots in hollow sulfide spheres raises the hydrogen evolution rate by shortening the path to the surface [2]. Interfacial charge transfer from a sulfide quantum dot into a monolayer dichalcogenide can be followed directly [3]. Pairing a zinc-cadmium sulfide with graphitic carbon nitride gives a type-II heterojunction [4]. Sequential proton-coupled electron transfer at a sulfide surface converts nitrobenzene to aniline [5].
- greenockite
- quantum dot
- photocatalysis
- hydrogen evolution
- heterojunction
- charge transfer
- visible-light response
Advanced Photocatalysis Techniques·Renewable Energy, Sustainability and the Environment·Energy·Physical Sciences
References
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