A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide with a photo-induced electron transfer mechanism

Minhuan Lan; Yanfei Di; Xiaoyue Zhu; Tsz-Wai Ng; Jing Xia; Weimin Liu; Xiangmin Meng; Pengfei Wang; Chun-Sing Lee; Wenjun Zhang

doi:10.1039/C5CC05835J

A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide with a photo-induced electron transfer mechanism†

Minhuan Lan,‡^a Yanfei Di,‡^a Xiaoyue Zhu,^a Tsz-Wai Ng,^a Jing Xia,^b Weimin Liu,*^b Xiangmin Meng,^b Pengfei Wang,^b Chun-Sing Lee^a and Wenjun Zhang*^a

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* Corresponding authors

^a Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, P. R. China
E-mail: apwjzh@cityu.edu.hk

^b Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, People's Republic of China
E-mail: wmliu@mail.ipc.ac.cn

Abstract

A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide (H₂O₂) with a photo-induced electron transfer mechanism was developed. The sensor exhibits good selectivity, sensitivity, and rapid response to H₂O₂ with a detection limit of 84 nM. The sensor maintains excellent sensing performance over a wide pH range.

Chemical Communications

A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide with a photo-induced electron transfer mechanism†

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A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide with a photo-induced electron transfer mechanism

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