Graphene quantum dots as efficient, metal-free, visible-light-active photocatalysts

被引：41

作者：

Ge, Jiechao

Lan, Minhuan

Liu, Weimin ^{[1
]}

Jia, Qingyan

Guo, Liang

Zhou, Bingjiang

Meng, Xiangmin

Niu, Guangle

Wang, Pengfei

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

来源：

SCIENCE CHINA-MATERIALS | 2016年 / 59卷 / 01期

基金：

中国国家自然科学基金;

关键词：

graphene quantum dots; photocatalysts; metal-free; visible-light-active; DOPED GRAPHENE; CARBON DOTS; WATER; ENERGY; FLUORESCENT; REDUCTION; OXIDATION; CATALYSTS; DYES;

D O I：

10.1007/s40843-016-0115-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 (O-1(2)) 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 O-1(2), which can kill nearby microorganisms and degrade organic dyes.

引用

页码：12 / 19

页数：8

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