Feasibility study of preparation of carbon quantum dots from Pennsylvania anthracite and Kentucky bituminous coals

Monikankana Saikia, James C. Hower, Tonkeswar Das, Trisharani Dutta, Binoy K. Saikia

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

This short communication reports the synthesis of carbon quantum dots (CQDs) from US anthracite and bituminous coals by oxidation in presence of ultrasonic stimulation. The CQDs formed were examined by using chemical analysis, UV–Visible spectroscopy (UV–Vis), Fluorescence spectroscopy (FL), High resolution transmission microscopy (HRTEM), and X-ray Photoelectron spectroscopy (XPS), revealing the formation of the varied sizes of CQDs ranging from about 2–12 nm. The present method could serve as a simple and a large-scale synthesis of CQDs from abundant and economical coal resources for high-end application.

Original languageEnglish
Pages (from-to)433-440
Number of pages8
JournalFuel
Volume243
DOIs
StatePublished - May 1 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

  • Anthracite
  • Blue Gem coal
  • Carbon quantum dots
  • Synthesis of carbon dots
  • Vitrinite

ASJC Scopus subject areas

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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