Environmental Science & Technology,
Journal Year:
2020,
Volume and Issue:
54(19), P. 12602 - 12611
Published: Aug. 20, 2020
Point-of-use
(POU)
devices
with
satisfactory
lead
(Pb2+)
removal
performance
are
urgently
needed
in
response
to
recent
outbreaks
of
contamination
drinking
water.
This
study
experimentally
demonstrated
the
excellent
capability
two-dimensional
(2D)
MoS2
nanosheets
aqueous
form
and
as
part
a
layer-stacked
membrane.
Among
all
materials
ever
reported
literature,
exhibit
highest
adsorption
capacity
(740
mg/g),
strongest
selectivity/affinity
toward
Pb2+
distribution
coefficient
Kd
that
is
orders
magnitude
higher
than
other
(5.2
×
107
mL/g).
Density
functional
theory
(DFT)
simulation
was
performed
complement
experimental
measurements
help
understand
mechanisms.
The
results
confirmed
cation
selectivity
follows
order
>
Cu2+
≫
Cd2+
Zn2+,
Ni2+
Mg2+,
K+,
Ca2+.
membrane
formed
exhibited
high
water
flux
(145
L/m2/h/bar),
while
effectively
decreasing
concentration
from
few
mg/L
less
10
μg/L.
literature-reported
filters.
Therefore,
has
great
potential
for
POU
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(1), P. e12685 - e12685
Published: Jan. 1, 2023
Semiconducting
membrane
combined
with
nanomaterials
is
an
auspicious
combination
that
may
successfully
eliminate
diverse
waste
products
from
water
while
consuming
little
energy
and
reducing
pollution.
Creating
inexpensive,
steady,
flexible,
diversified
business
material
for
production
a
critical
challenge
in
technology
development.
Because
of
its
unusual
structure
high
catalytic
activity,
graphitic
carbon
nitride
(g-C3N4)
has
come
out
as
viable
membranes.
Furthermore,
their
great
durability,
permanency
under
challenging
environments,
long-term
use
without
decrease
flux
are
significant
advantages.
The
advanced
techniques
used
to
manage
the
molecular
assembly
g-C3N4
separation
were
detailed
this
review
work.
progress
using
g-C3N4-based
membranes
treatment
been
presentation.
delivers
updated
description
based
functions
new
ideas
future
enhancements/adjustments
address
weaknesses
real-world
situations.
Finally,
ongoing
problems
promising
research
directions
discussed.
ACS Catalysis,
Journal Year:
2022,
Volume and Issue:
12(9), P. 5605 - 5660
Published: April 26, 2022
As
a
group
of
large-surface-area
nonmetal
materials,
polymeric
carbon
nitride
(CxNy)
and
its
hybrid
structures
are
nowadays
ever-increasing
interest
for
use
in
energy
devices
involved
conversion
storage,
offering
low
expenses
facile
production
processes.
With
the
growing
requirement
clean
renewable
generation
storage
systems,
progress
replacement
expensive
noble-metal
catalysts
with
CxNy-based
materials
as
efficient
electrocatalysts
has
expanded
considerably,
demand
these
increased.
The
modified
CxNy
architectures
beneficial
to
electrocatalytic
applications,
improving
their
moderate
electrical
conductivities
capacity
loss.
present
review
strives
highlight
recent
advances
research
on
aforementioned
identities
CxNy-derived
structurally
polymorphs.
This
also
discusses
fuel
cells,
metal–air
batteries,
water
splitting
supercapacitor
applications.
Herein,
we
deal
oxidation
reduction
reactions
such
hydrogen
evolution,
oxygen
reduction,
CO2
nitrogen
etc.
Each
device
been
studied
clearer
understanding
patent
relevant
experiments
reviewed
separately.
Additionally,
role
some
general
redox
capable
being
exploited
any
is
included.
