title: Synthesis of Nitrogen and Sulfur Co-doped Carbon Dots from Garlic for Selective Detection of Fe(3.).
abstract: Garlic was used as a green source to synthesize carbon dots (CDs) with a systematic study of the optical and structure properties. Ethylenediamine was added into the synthesis to improve the photoluminescence quantum yield (PL QY) of the CDs. Detailed structural and composition studies demonstrated that the content of N and the formation of C-N and C=N were critical to improve the PL QY. The as-synthesized CDs exhibited excellent stability in a wide pH range and high NaCl concentrations, rendering them applicable in complicated and harsh conditions. Quenching the fluorescence of the CDs in the presence of Fe(3+) ion made these CDs a luminescent probe for selective detection of Fe(3+) ion.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
authors.forename: Chun
authors.initials: C
authors.lastname: Sun
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China. yuzhang@jlu.edu.cn.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Superhard Materials, and College of Physics, Jilin University, Changchun, 130012, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Physical Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic. yu.wang@upol.cz.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA.
authors.forename: Jian
authors.initials: J
authors.lastname: Xu
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
authors.forename: Yiding
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
authors.forename: William W
authors.initials: WW
authors.lastname: Yu
keywords: Carbon dots; Garlic; Ion detection