Laser irradiated vortex fluidic mediated synthesis of luminescent carbon nanodots under continuous flow

Xuan Luo, Ahmed Hussein Mohammed Al-Antaki, Kasturi Vimalanathan, Jillian Moffatt, Kun Zheng, Yichao Zou, Jin Zou, Xiaofei Duan, Robert N Lamb, Shujun Wang, Qin Li, Wei Zhang, Colin L Raston

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Carbon nanodots (CDs) with size dependent fluorescence are synthesized from multi-walled carbon nanotubes (MWCNTs) under continuous flow in a vortex fluidic device (VFD) when irradiated by a pulsed laser with a wavelength of 1064 nm, without subsequent passivation procedures. The CDs have a relatively narrow size distribution averaging ca. 6 nm in diameter, and have low cytotoxicity and high colloidal stability with the highest emission intensity of the solution at 450 nm under a 345 nm excitation wavelength. Further downstream processing on the as-processed CDs revealed tunability of the emission from 450 nm to 325 nm.

Original languageEnglish
Pages (from-to)164-170
Number of pages7
JournalReaction Chemistry and Engineering
Volume3
Issue number2
DOIs
Publication statusPublished - 15 Jan 2018

Bibliographical note

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Keywords

  • carbon nanodots
  • vortex fluidics
  • continuous flow

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