Open AccessGreen synthesis of highly stable carbon nanodots and their photocatalytic performance
Author(s) -
Mahajan Rashmi,
Bhadwal Akhshay Singh,
Kumar Nishant,
Madhusudanan Mukil,
Pudake Ramesh Namdeo,
Tripathi Ravi Mani
Publication year - 2017
Publication title -
iet nanobiotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 38
eISSN - 1751-875X
pISSN - 1751-8741
DOI - 10.1049/iet-nbt.2016.0025
Subject(s) - photocatalysis , fourier transform infrared spectroscopy , spectroscopy , materials science , photoluminescence , dynamic light scattering , nanodot , photochemistry , fluorescence spectroscopy , quantum yield , ultraviolet visible spectroscopy , transmission electron microscopy , fluorescence , nuclear chemistry , chemical engineering , nanotechnology , chemistry , nanoparticle , catalysis , optoelectronics , organic chemistry , optics , physics , quantum mechanics , engineering
The present study reports a novel, facile, biosynthesis route for the synthesis of carbon nanodots (CDs) with an approximate quantum yield of 38.5%, using Musk melon extract as a naturally derived‐precursor material. The synthesis of CDs was established by using ultraviolet–visible (UV–vis) spectroscopy, Dynamic light scattering, photoluminescence spectroscopy, X‐ray diffraction, transmission electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The as‐prepared CDs possess an eminent fluorescence under UV–light ( λ ex = 365 nm). The size range of CDs was found to be in the range of 5–10 nm. The authors further explored the use of such biosynthesised CDs as a photocatalyst material for removal of industrial dye. Degradation of methylene blue dye was performed in a photocatalytic reactor and monitored using UV–vis spectroscopy. The CDs show excellent dye degradation capability of 37.08% in 60 min and reaction rate of 0.0032 min −1 . This study shows that synthesised CDs are highly stable in nature, and possess potential application in wastewater treatment.