Decades of antibiotic use and misuse have generated selective pressure toward the rise of antibiotic-resistant bacteria, which now contaminate our environment and pose a major threat to humanity. According to...
The
interest in layered 2D nanomaterials has witnessed an impressive
growth in the last years, bringing to the discovery of many new species
and methods for their preparation. The liquid-phase exfoliation (LPE)
of crystalline bulk powders is certainly the most suitable method
for scaled-up production, allowing also the convenient access to solution
processing techniques for the direct utilization of the produced 2D
material colloidal inks. Given the large number of reports on LPE
processes for different 2D materials, today, it is necessary to specifically
define the results of similar investigations, so as to provide the
scientific community with clear guidelines for identifying design
rules and applying standardized procedures. In this work, we present
a systematic study on the LPE process for α-MoO3,
a stable high band gap semiconductor, which in its 2D form has been
employed for many purposes, ranging from catalysis to energy/optoelectronic
devices and sensing. We investigate the effect of different low-toxicity
solvents and instruments for its LPE and provide new insights into
the structural and electronic properties of the resulting 2D nano-inks
in a joint experimental–computational effort, which will represent
a solid source of information for the future implementation of liquid-dispersed
layered α-MoO3 nanosheets in different fields.
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