Multifunctional Nitrogen‐Doped Carbon Nanodots for Photoluminescence,Sensor, and Visible‐Light‐Induced H2 Production |
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| Authors: | Dr. Pengju Yang Dr. Jianghong Zhao Dr. Jian Wang Dr. Huijuan Cui Li Li Prof. Dr. Zhenping Zhu |
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| Affiliation: | 1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001 (P. R. China);2. University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100039 (P. R. China) |
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| Abstract: | Herein, multifunctional N‐doped carbon nanodots (NCNDs) were prepared through the one‐step hydrothermal treatment of yeast. Results show that the NCNDs can be used as a new photocatalyst to drive the water‐splitting reaction under UV light. Moreover, the NCNDs can efficiently catalyze the hydrogen evolution reaction. Under visible‐light irradiation, Eosin Y‐sensitized NCNDs exhibit excellent activity for hydrogen evolution. The hydrogen evolution rate of NCNDs (without any modification and co‐catalyst) reaches 107.1 μmol h?1 (2142 μmol g?1 h?1). When Pt is loaded on the NCNDs, the hydrogen evolution rate reaches 491.2 μmol h?1 (9824 μmol g?1 h?1) under visible‐light irradiation. In addition, the NCNDs show excellent fluorescent properties and can be applied as a fluorescent probe for the sensitive and selective detection of Fe3+. |
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| Keywords: | carbon nanodots fluorescent probes hydrogen evolution reaction photocatalysis visible light |
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