【摘要】 本文提供了石墨烯量子点的应用新领域.在此前的研究中,我们发现以聚噻吩衍生物(PT2)为前驱物制备的石墨烯量子点在太阳光的照射下可高效产生单线态氧.本文进一步研究发现,此类石墨烯量子点在模拟太阳光的照射下(大于420 nm)可以快速多次降解水中有机污染物和高效灭杀细菌,表明石墨烯量子点在环境保护领域拥有巨大的应用潜力.更多还原

【Abstract】 This paper reports on new applications of water-dispersible graphene quantum dots(GQDs) that we recently developed. The prepared GQDs not only show broad absorption in the visible spectrum from 400 to 700 nm, but can also serve as smart photosensitizers with high singlet oxygen(1O2) production under visible-light irradiation(≥420 nm). We showed that the prepared GQDs can potentially be used as a metal-free, visible-light-active, sensitized photocatalyst via energy transfer mechanism, in which the light energy was converted by GQDs to produce 1O2, which can kill nearby microorganisms and degrade organic dyes.更多还原