TY - JOUR

T1 - The influence of thermal treatment conditions (solvothermal

T2 - Versus microwave) and solvent polarity on the morphology and emission of phloroglucinol-based nitrogen-doped carbon dots

AU - Khavlyuk, Pavel D.

AU - Stepanidenko, Evgeniia A.

AU - Bondarenko, Daniil P.

AU - Danilov, Denis V.

AU - Koroleva, Aleksandra V.

AU - Baranov, Alexander V.

AU - Maslov, Vladimir G.

AU - Kasak, Peter

AU - Fedorov, Anatoly V.

AU - Ushakova, Elena V.

AU - Rogach, Andrey L.

N1 - Publisher Copyright: © The Royal Society of Chemistry.

PY - 2021/2/7

Y1 - 2021/2/7

N2 - The optical properties of chemically synthesized carbon dots (CDs) can be widely tuned via doping and surface modification with heteroatoms such as nitrogen, which results in a range of potential applications. Herein, two most commonly used synthesis approaches, namely, solvothermal and microwave-assisted thermal treatments, have been used for the preparation of CDs from phloroglucinol using three different nitrogen containing solvents, namely, ethylenediamine, dimethylformamide, and formamide. Based on the analysis of the morphology and optical properties, we demonstrate the tenability of the CD appearance from amorphous or well-carbonized spherical particles to onion-like ones, which is controlled by solvent polarity, whereas the thermal treatment conditions mostly influence the degree of N-doping and the nature of emissive centers of CDs formed. The findings of this study expand the toolkit of the available CDs with variable morphology and energy structure. This journal is

AB - The optical properties of chemically synthesized carbon dots (CDs) can be widely tuned via doping and surface modification with heteroatoms such as nitrogen, which results in a range of potential applications. Herein, two most commonly used synthesis approaches, namely, solvothermal and microwave-assisted thermal treatments, have been used for the preparation of CDs from phloroglucinol using three different nitrogen containing solvents, namely, ethylenediamine, dimethylformamide, and formamide. Based on the analysis of the morphology and optical properties, we demonstrate the tenability of the CD appearance from amorphous or well-carbonized spherical particles to onion-like ones, which is controlled by solvent polarity, whereas the thermal treatment conditions mostly influence the degree of N-doping and the nature of emissive centers of CDs formed. The findings of this study expand the toolkit of the available CDs with variable morphology and energy structure. This journal is

UR - http://www.scopus.com/inward/record.url?scp=85100319256&partnerID=8YFLogxK

U2 - 10.1039/d0nr07852b

DO - 10.1039/d0nr07852b

M3 - Article

C2 - 33522554

AN - SCOPUS:85100319256

VL - 13

SP - 3070

EP - 3078

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 5

ER -