Environmental Functional Materials,
Journal Year:
2023,
Volume and Issue:
2(3), P. 290 - 303
Published: Dec. 1, 2023
Conventional
capacitive
deionization
(CDI),
originally
developed
as
a
promising
desalination
technique
based
on
the
formation
of
electric
double
layers
(EDLs)
at
surface
porous
electrodes,
has
recently
shown
significant
advancements.
Notably,
utilization
pseudocapacitive
electrodes
demonstrated
capability
to
enhance
salt
adsorption
capacity
(SAC)
and
selectivity
specific
ions.
This
comprehensive
review
encapsulates
latest
research
endeavored
in
CDI,
with
an
emphasis
electrode
materials
their
role
augmenting
SAC.
The
development
broadened
scope
CDI
applications
water
wastewater
treatment
resource
recovery.
Hence,
we
also
evaluated
manifold
including
recovery
(e.g.,
lithium,
phosphate
nitrate),
anion
removal
fluoride,
sulfate,
chromium
arsenic),
softening,
heavy
metals
nickel,
cesium,
lead,
copper,
cadmium
chromium)
addition
desalination.
Lastly,
provide
forward-looking
perspective
forthcoming
directions
potential
developments
within
realm
technology.
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
56(16), P. 11750 - 11759
Published: July 29, 2022
Developing
advanced
heterogeneous
catalysts
with
atomically
dispersed
active
sites
is
an
efficient
strategy
to
boost
the
kinetics
of
peroxymonosulfate
(PMS)
activation
for
micropollutant
removal.
Here,
we
report
a
binary
Mo2TiC2Tx
MXene-based
electroactive
filter
system
abundant
surface
Mo
vacancies
effective
PMS.
The
assumed
two
essential
roles:
(i)
as
anchoring
Fe
single
atoms
(Fe-SA)
and
(ii)
cocatalytic
Fenton-like
reaction.
Fe-SA
formed
strong
metal–oxygen
bonds
support,
stabilizing
at
previously
occupied
by
Mo.
resulting
Fe-SA/Mo2TiC2Tx
nanohybrid
achieved
100%
degradation
sulfamethoxazole
(SMX)
in
single-pass
mode
(hydraulic
retention
time
<2
s)
when
assisted
electric
field
(2.0
V).
rate
constant
(k
=
2.89
min–1)
SMX
removal
was
24
67
times
greater
than
that
nanoparticles
immobilized
on
pristine
filter,
respectively.
Operation
flow-through
configuration
outperformed
conventional
batch
reactor
model
0.17
due
convection-enhanced
mass
transport.
results
obtained
from
experimental
investigations
theoretical
calculations
suggested
Fe-SA,
anchored
vacancies,
responsible
adsorption
PMS
produce
sulfate
radicals
(SO4•–)
presence
field.
This
study
provides
proof-of-concept
demonstration
broader
application
treatment
water
contaminated
emerging
micropollutants.
Desalination and Water Treatment,
Journal Year:
2024,
Volume and Issue:
317, P. 100205 - 100205
Published: Jan. 1, 2024
Throughout
the
years,
experiments
with
membrane,
electrochemical,
biological
and
thermal
technologies
have
been
explored
to
recover
resources
from
a
range
of
wastewaters
such
as
municipal,
industrial,
urine
sewage
sludge.
However,
multiple
resource
recoveries
at
commercial
pilot
scale
are
still
lacking,
instead,
focusing
on
specialising
recovery
narrow
set
products.
Herein,
divergence
across
municipal
industrial
wastewater
streams
–
nutrients
energy
for
municipal;
heavy
metals
water
streams;
material
seen
both
was
observed
through
literature
review.
This
review
aims
provide
perspective
academic
professionals
alike
current
available
their
emerging
trends
tie
in
these
circular
economics.
Consequently,
high
sludge
transportation
costs
may
pressure
treatment
plants
(WWTPs)
adopt
value-adding,
onsite
transforming
centralised
decentralised
WWTPs
into
facilities.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(13), P. 12875 - 12883
Published: June 26, 2023
Fine-tuning
the
geometric
and
electronic
structure
of
catalytic
metal
centers
via
N-coordination
engineering
offers
an
effective
design
for
electrocatalytic
transformation
O2
to
singlet
oxygen
(1O2).
Herein,
we
develop
a
general
coordination
modulation
strategy
synthesize
fluidic
single-atom
electrodes
selective
activation
1O2.
Using
single
Cr
atom
system
as
example,
>98%
1O2
selectivity
can
be
achieved
from
due
subtle
Cr-N4
sites.
Both
theoretical
simulations
experimental
results
determined
that
"end-on"
adsorption
onto
sites
lowers
overall
energy
barrier
promotes
breakage
Cr-OOH
bonds
form
•OOH
intermediates.
In
addition,
flow-through
configuration
(k
=
0.097
min-1)
endowed
convection-enhanced
mass
transport
improved
charge
transfer
imparted
by
spatial
confinement
within
lamellar
electrode
compared
batch
reactor
0.019
min-1).
practical
demonstration,
Cr-N4/MXene
exhibits
high
toward
electron-rich
micropollutants
(e.g.,
sulfamethoxazole,
bisphenol
A,
sulfadimidine).
The
achieves
synergy
with
molecular
microenvironment
enables
generation,
which
could
used
in
numerous
ways,
including
treatment
environmental
pollution.
