A convenient method for isolating carbon quantum dots in high yield as an alternative to the dialysis process and the fabrication of a full-band UV blocking polymer film

Periyayya Uthirakumar, M. Devendiran, Tae Hwan Kim, In-Hwan Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We introduce a facile and convenient method to isolate more than 80% carbon quantum dots (CQD), for the first time. The proposed method substitutes a lengthy conventional dialysis process. An organic solvent, n-butanol is used to extract CQD in a high yield with the cumulative particle size distribution at 2.6 nm. The polymer films were fabricated as a function of increasing content of CQD, and shielded full-band UV light. It is found that the presence of surface functional groups in the CQD creates a high level of dispersion in the polymer matrix and it can block >99% of UV light with just 10 mg of CQD. A plausible mechanism is proposed to explain the superior UV shielding properties of the polymer film and is confirmed by protection of a photo-degradable model dye. Due to being non-toxic and environmentally friendly, the CQD dispersed polymer film could be a promising material in the food packaging industry to protect UV sensitive foods.

Original languageEnglish
Pages (from-to)18312-18317
Number of pages6
JournalNew Journal of Chemistry
Volume42
Issue number22
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

Dialysis
Polymer films
Semiconductor quantum dots
Carbon
Fabrication
Ultraviolet radiation
1-Butanol
Polymer matrix
Butenes
Particle size analysis
Shielding
Organic solvents
Functional groups
Packaging
Coloring Agents
Dyes
Industry

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

Cite this

A convenient method for isolating carbon quantum dots in high yield as an alternative to the dialysis process and the fabrication of a full-band UV blocking polymer film. / Uthirakumar, Periyayya; Devendiran, M.; Kim, Tae Hwan; Lee, In-Hwan.

In: New Journal of Chemistry, Vol. 42, No. 22, 01.01.2018, p. 18312-18317.

Research output: Contribution to journalArticle

@article{22f81b71347f401a931459f4286ed1b4,
title = "A convenient method for isolating carbon quantum dots in high yield as an alternative to the dialysis process and the fabrication of a full-band UV blocking polymer film",
abstract = "We introduce a facile and convenient method to isolate more than 80{\%} carbon quantum dots (CQD), for the first time. The proposed method substitutes a lengthy conventional dialysis process. An organic solvent, n-butanol is used to extract CQD in a high yield with the cumulative particle size distribution at 2.6 nm. The polymer films were fabricated as a function of increasing content of CQD, and shielded full-band UV light. It is found that the presence of surface functional groups in the CQD creates a high level of dispersion in the polymer matrix and it can block >99{\%} of UV light with just 10 mg of CQD. A plausible mechanism is proposed to explain the superior UV shielding properties of the polymer film and is confirmed by protection of a photo-degradable model dye. Due to being non-toxic and environmentally friendly, the CQD dispersed polymer film could be a promising material in the food packaging industry to protect UV sensitive foods.",
author = "Periyayya Uthirakumar and M. Devendiran and Kim, {Tae Hwan} and In-Hwan Lee",
year = "2018",
month = "1",
day = "1",
doi = "10.1039/c8nj04615h",
language = "English",
volume = "42",
pages = "18312--18317",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "Royal Society of Chemistry",
number = "22",

}

TY - JOUR

T1 - A convenient method for isolating carbon quantum dots in high yield as an alternative to the dialysis process and the fabrication of a full-band UV blocking polymer film

AU - Uthirakumar, Periyayya

AU - Devendiran, M.

AU - Kim, Tae Hwan

AU - Lee, In-Hwan

PY - 2018/1/1

Y1 - 2018/1/1

N2 - We introduce a facile and convenient method to isolate more than 80% carbon quantum dots (CQD), for the first time. The proposed method substitutes a lengthy conventional dialysis process. An organic solvent, n-butanol is used to extract CQD in a high yield with the cumulative particle size distribution at 2.6 nm. The polymer films were fabricated as a function of increasing content of CQD, and shielded full-band UV light. It is found that the presence of surface functional groups in the CQD creates a high level of dispersion in the polymer matrix and it can block >99% of UV light with just 10 mg of CQD. A plausible mechanism is proposed to explain the superior UV shielding properties of the polymer film and is confirmed by protection of a photo-degradable model dye. Due to being non-toxic and environmentally friendly, the CQD dispersed polymer film could be a promising material in the food packaging industry to protect UV sensitive foods.

AB - We introduce a facile and convenient method to isolate more than 80% carbon quantum dots (CQD), for the first time. The proposed method substitutes a lengthy conventional dialysis process. An organic solvent, n-butanol is used to extract CQD in a high yield with the cumulative particle size distribution at 2.6 nm. The polymer films were fabricated as a function of increasing content of CQD, and shielded full-band UV light. It is found that the presence of surface functional groups in the CQD creates a high level of dispersion in the polymer matrix and it can block >99% of UV light with just 10 mg of CQD. A plausible mechanism is proposed to explain the superior UV shielding properties of the polymer film and is confirmed by protection of a photo-degradable model dye. Due to being non-toxic and environmentally friendly, the CQD dispersed polymer film could be a promising material in the food packaging industry to protect UV sensitive foods.

UR - http://www.scopus.com/inward/record.url?scp=85056121384&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056121384&partnerID=8YFLogxK

U2 - 10.1039/c8nj04615h

DO - 10.1039/c8nj04615h

M3 - Article

AN - SCOPUS:85056121384

VL - 42

SP - 18312

EP - 18317

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 22

ER -