Fernando K A Shiral, Sahu Sushant, Liu Yamin, Lewis William K, Guliants Elena A, Jafariyan Amirhossein, Wang Ping, Bunker Christopher E, Sun Ya-Ping
‡Energy Technology and Materials Division, University of Dayton Research Institute, Dayton, Ohio 45469, United States.
§Department of Chemistry and Laboratory for Emerging Materials and Technology, Clemson University, Clemson, South Carolina 29634, United States, and.
ACS Appl Mater Interfaces. 2015 Apr 29;7(16):8363-76. doi: 10.1021/acsami.5b00448. Epub 2015 Apr 15.
Quantum dots (QDs) generally refer to nanoscale particles of conventional semiconductors that are subject to the quantum-confinement effect, though other nanomaterials of similar optical and redox properties are also named as QDs even in the absence of strictly defined quantum confinement. Among such nanomaterials that have attracted tremendous recent interest are carbon dots, which are small carbon nanoparticles with some form of surface passivation, and graphene quantum dots in various configurations. In this article, we highlight these carbon-based QDs by focusing on their syntheses, on their photoexcited state properties and redox processes, and on their applications as photocatalysts in visible-light carbon dioxide reduction and in water-splitting, as well as on their mechanistic similarities and differences.
量子点（QDs）通常是指受量子限制效应影响的传统半导体纳米级颗粒，不过即使在没有严格定义的量子限制的情况下，其他具有相似光学和氧化还原特性的纳米材料也被称为量子点。在这类最近引起极大关注的纳米材料中，有碳点，即具有某种形式表面钝化的小碳纳米颗粒，以及各种构型的石墨烯量子点。在本文中，我们通过关注它们的合成、光激发态性质和氧化还原过程、它们作为光催化剂在可见光二氧化碳还原和水分解中的应用，以及它们的机理异同，来突出这些碳基量子点。
