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Multifunctional Nitrogen‐Doped Carbon Nanodots for Photoluminescence, Sensor, and Visible‐Light‐Induced H 2 Production
Author(s) -
Yang Pengju,
Zhao Jianghong,
Wang Jian,
Cui Huijuan,
Li Li,
Zhu Zhenping
Publication year - 2015
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201500447
Subject(s) - visible spectrum , nanodot , photochemistry , photocatalysis , catalysis , photoluminescence , fluorescence , hydrogen production , hydrogen , materials science , water splitting , eosin y , hydrothermal circulation , photocatalytic water splitting , carbon fibers , irradiation , chemistry , nanotechnology , chemical engineering , organic chemistry , optics , optoelectronics , nuclear physics , physics , composite material , engineering , composite number
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 Fe 3+ .