Preparation of highly photoluminescent sulfur-doped carbon dots for Fe( iii ) detection

Sulfur-doped carbon dots (S-doped C-dots)were synthesized using a simple and straightforward hydrothermal method. The as-prepared S-doped C-dots exhibit significant fluorescence quantum yield (67%) and unique emission behavior. The spherical S-doped C-dots have an average diameter of 4.6 nm and the...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 3; no. 2; pp. 542 - 546
Main Authors Xu, Quan, Pu, Peng, Zhao, Jungang, Dong, Chenbo, Gao, Chun, Chen, Yusheng, Chen, Jiarui, Liu, Yao, Zhou, Hongjun
Format Journal Article
LanguageEnglish
Published 01.01.2015
Subjects
Carbon
Emission
Fluorescence
Nanoparticles
Photoluminescence
Quenching (cooling)
Sustainability
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Summary:Sulfur-doped carbon dots (S-doped C-dots)were synthesized using a simple and straightforward hydrothermal method. The as-prepared S-doped C-dots exhibit significant fluorescence quantum yield (67%) and unique emission behavior. The spherical S-doped C-dots have an average diameter of 4.6 nm and the fluorescence of S-doped C-dots can be effectively and selectively quenched by Fe super(3+) ions. Thus, S-doped C-dots were applied as probes toward Fe super(3+) detection, exhibiting a limit of detection of 0.1 mu M.
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ISSN:2050-7488
2050-7496
DOI:10.1039/c4ta05483k