10.1021/acs.iecr.8b00913.s001
Weilin Wang
Weilin
Wang
Zhaofeng Wang
Zhaofeng
Wang
Jingjing Liu
Jingjing
Liu
Yikang Peng
Yikang
Peng
Xiaoyuan Yu
Xiaoyuan
Yu
Weixing Wang
Weixing
Wang
Zhengguo Zhang
Zhengguo
Zhang
Luyi Sun
Luyi
Sun
One-Pot Facile Synthesis of Graphene Quantum Dots
from Rice Husks for Fe<sup>3+</sup> Sensing
American Chemical Society
2018
transmission electron microscopy
365 nm
oxygenous groups
photoluminescence excitation intensity
graphene quantum dots
rice husk-derived GQDs
360 nm
one-pot hydrothermal method
quenching tests
Fe
466 nm
GQDs exhibit
Graphene Quantum Dots
Rice Husks
force microscopy
rice husk biomass
One-Pot Facile Synthesis
emission wavelength
3.9 nm
2018-06-18 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/One-Pot_Facile_Synthesis_of_Graphene_Quantum_Dots_from_Rice_Husks_for_Fe_sup_3_sup_Sensing/6727964
In this work, graphene quantum dots
(GQDs) with an average size
of 3.9 nm were synthesized using rice husk biomass as the raw material
via a facile one-step one-pot hydrothermal method. The size and morphology
of the rice husk-derived GQDs were characterized by transmission electron
microscopy and atomic force microscopy. The GQDs exhibit bright blue
photoluminescence under 365 nm ultraviolet irradiation and can be
well dispersed in water. The GQDs reach the strongest photoluminescence
excitation intensity at ca. 360 nm under an emission wavelength of
466 nm, suggesting that the GQDs were oxidized with oxygenous groups
attached. The quenching tests showed that the synthesized GQDs were
highly and selectively sensitive toward Fe<sup>3+</sup> ions and thus
can potentially be used for Fe<sup>3+</sup> sensing.