邵名望教授课题组在ACS Nano上发表论文

发布时间:2012-01-06访问量:29设置

题目:

Upconversion and Downconversion Fluorescent Graphene Quantum Dots: Ultrasonic Preparation and Photocatalysis

作者:

Shujuan Zhuoa,b, Mingwang Shaoa,*, Shuit-Tong Leec,*

单位:

aInstitute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, P. R. China

bAnhui Key Laboratory of Functional Molecular Solids, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China

cCenter of Super-Diamond and Advanced Films and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, P. R. China

摘要:

A facile ultrasonic route for the fabrication of graphene quantum dots (GQDs) with upconverted emission is presented. The as-prepared GQDs exhibit an excitation-independent downconversion and upconversion photoluminescent (PL) behavior. And the complex photocatalysts (rutile TiO2/GQD and anatase TiO2/GQD systems) were designed to harness the visible spectrum of sunlight. It is interesting that the photocatalytic rate of rutile TiO2/GQD complex system is ca. 9 times larger than that of anatase TiO2/GQD complex under visible light (λ > 420 nm) irradiation in the degradation of methylene blue.

影响因子:

9.865

分区情况:

1



责任编辑:向丹婷




返回原图
/


XML 地图 | Sitemap 地图