GQDs	graphene quantum dots
NPs	nanoparticles
CNTs	carbon nanotubes
GO	graphene oxide
N-GQDs	nitrogen-doped graphene quantum dots
PGQDs	pristine graphene quantum dots
EGQDs	expanded graphene quantum dots
GOGQDs	graphene oxide graphene quantum dots
LD-GQDs	low-defects graphene quantum dots
HD-GQDs	high-defects graphene quantum dots
C-GQDs	coal-derived graphene quantum dots
F-GQDs	fenugreek-derived graphene quantum dots
CQDs	carbon quantum dots
PL	photoluminescence
TATB	1,3,5-triamino-2,4,6-trinitrobenzene
HBC	hexa-peri-hexabenzocoronene
CA	citric acid
His-GQD-GMA	histidine–graphene quantum dot–graphene micro-aerogel
ATP	adenosine triphosphate
N and P co-doped GQDs	graphene quantum dots co-doped with nitrogen and phosphorus
QY	quantum yield
FL	fluorescence
TNP	2,4,6-trinitrophenol
En	ethylenediamine
Gl	glycerol
Eg	ethylene glycol
Me	methanol
Dmf	dimethyl formative
Ac	acetone
Et	ethanol
To	toluene
Ct	carbon tetrachloride
PEI	polyethyleneimine
N-GO	nitrogen-doped graphene oxide
MWCNT	multiwalled carbon nanotube
G-GQDs	graphite-derived graphene quantum dots
M-GQDs	MWCNT-derived graphene quantum dots
CF-GQDs	carbon fiber-derived graphene quantum dots
C-GQDs	charcoal-derived graphene quantum dots
a-GQDs	anthracite-derived GQDs
b-GQDs	bituminous coal-derived GQDs
c-GQDs	coke-derived GQDs
PLAL	pulsed laser ablation in liquid
GOQDs	graphene oxide quantum dots
mGQDs	Mangifera indica derived GQDs
RH-GQDs	rice-husk-derived GQDs
LGQDs	lignin-derived GQDs
MAH	microwave-assisted hydrothermal
WGQDs	white fluorescent GQDs
WLEDs	white-light-emitting diodes
CL	chemiluminescence
DSSC	dye-sensitized solar cells
XRD	X-ray diffraction
TEM	transmission electron microscope
FITR	Fourier-transform infrared spectroscopy
ETL	electron transport layer