Journal article

Reduced-sized monolayer carbon nitride nanosheets for highly improved photoresponse for cell imaging and photocatalysis

Qinghua Liang, Zhi Li, Yu Bai, Zheng-Hong Huang, Feiyu Kang, Quan-Hong Yang

SCIENCE CHINA-MATERIALS | SCIENCE PRESS | Published : 2017

Abstract

Two-dimensional graphitic carbon nitride (g-C3N4) nanosheets (GCNNs) have been considered as an attractive metal-free semiconductor because of their superior catalytic, optical, and electronic properties. However, it is still challenging to prepare monolayer GCNNs with a reduced lateral size in nanoscale. Herein, a highly efficient ultrasonic technique was used to prepare nanosized monolayer graphitic carbon nitride nanosheets (NMGCNs) with a thickness of around 0.6 nm and an average lateral size of about 55 nm. With a reduced lateral size yet monolayer thickness, NMGCNs show unique photo-responsive properties as compared to both large-sized GCNNs and GCN quantum dots. A dispersion of NMGCNs..

View full abstract

University of Melbourne Researchers

Grants

Awarded by National Basic Research Program of China


Awarded by National Natural Science Foundation of China


Awarded by Shenzhen Basic Research Project


Awarded by Key Laboratory of Advanced Materials of Ministry of Education


Funding Acknowledgements

This work was supported by the National Basic Research Program of China (2014CB932400), the National Natural Science Foundation of China (51525204 and 51302274), Shenzhen Basic Research Project (ZDSYS20140509172959981), and the Key Laboratory of Advanced Materials of Ministry of Education (2016AML02).