Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Sept. 16, 2019
Abstract
Metal-organic
frameworks
(MOFs)
with
high
porosity
and
designable
functionality
make
it
possible
to
access
the
merits
of
permeability
selectivity.
However,
scalable
fabrication
methods
produce
mixed
matrix
membranes
(MMMs)
good
flexibility
ultrahigh
MOF
loading
are
urgently
needed
yet
largely
unmet.
Herein,
we
report
a
thermally
induced
phase
separation-hot
pressing
(TIPS-HoP)
strategy
roll-to-roll
10
distinct
MOF-membranes
(loadings
up
86
wt%).
Ultrahigh-molecular-weight
polyethylene
interweaving
particles
contributes
their
mechanical
strength.
Rejections
(99%)
organic
dyes
water
flux
125.7
L
m
–2
h
–1
bar
under
cross-flow
filtration
mode.
The
micron-sized
channels
between
translate
into
fast
permeation,
while
porous
MOFs
reject
solutes
through
rapid
adsorption.
This
paves
ways
for
developing
high-performance
membrane
adsorbers
crucial
separation
processes.
As
proof-of-concept,
abilities
separating
racemates
proteins
have
been
demonstrated.
Environmental Science & Technology,
Journal Year:
2019,
Volume and Issue:
53(13), P. 7234 - 7264
Published: June 3, 2019
Antibiotics,
the
most
frequently
prescribed
drugs
of
modern
medicine,
are
extensively
used
for
both
human
and
veterinary
applications.
Antibiotics
from
different
wastewater
sources
(e.g.,
municipal,
hospitals,
animal
production,
pharmaceutical
industries)
ultimately
discharged
into
treatment
plants.
Sorption
biodegradation
two
major
removal
pathways
antibiotics
during
biological
processes.
This
review
provides
fundamental
insights
sorption
mechanisms
classes
with
diverse
physical–chemical
attributes.
Important
factors
affecting
behavior
also
highlighted.
Furthermore,
this
sheds
light
on
critical
role
extracellular
polymeric
substances
adsorption
their
in
engineered
systems.
Despite
advancements,
systems
only
moderately
effective
(48–77%)
antibiotics.
In
review,
we
systematically
summarize
various
discussion
efficiency,
mechanisms,
bioreactor
operating
conditions
removal,
recent
innovative
advancements.
Besides,
relevant
background
information
including
classification,
properties,
occurrence
environment
is
briefly
covered.
aims
to
advance
our
understanding
fate
outlines
future
research
directions.
Advanced Materials,
Journal Year:
2019,
Volume and Issue:
31(23)
Published: April 16, 2019
Abstract
Emerging
solar
desalination
by
interfacial
evaporation
shows
great
potential
in
response
to
global
water
scarcity
because
of
its
high
solar‐to‐vapor
efficiency,
low
environmental
impact,
and
off‐grid
capability.
However,
solute
accumulation
at
the
heating
interface
has
severely
impacted
performance
long‐term
stability
current
systems.
Here,
a
self‐regenerating
evaporator
featuring
excellent
antifouling
properties
using
rationally
designed
artificial
channel‐array
natural
wood
substrate
is
reported.
Upon
evaporation,
salt
concentration
gradients
are
formed
between
millimeter‐sized
drilled
channels
(with
concentration)
microsized
due
their
different
hydraulic
conductivities.
The
allow
spontaneous
interchannel
exchange
through
1–2
µm
pits,
leading
dilution
channels.
with
conductivities
thus
function
as
salt‐rejection
pathways,
which
can
rapidly
bulk
solution,
enabling
real‐time
self‐regeneration
evaporator.
Compared
other
designs,
exhibits
highest
efficiency
(≈75%)
highly
concentrated
solution
(20
wt%
NaCl)
under
1
sun
irradiation,
well
(over
100
h
continuous
operation).
Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Sept. 5, 2019
Shifting
electrochemical
oxygen
reduction
towards
2e-
pathway
to
hydrogen
peroxide
(H2O2),
instead
of
the
traditional
4e-
water,
becomes
increasingly
important
as
a
green
method
for
H2O2
generation.
Here,
through
flexible
control
pathways
on
different
transition
metal
single
atom
coordination
in
carbon
nanotube,
we
discovered
Fe-C-O
an
efficient
catalyst,
with
unprecedented
onset
0.822
V
versus
reversible
electrode
0.1
M
KOH
deliver
mA
cm-2
current,
and
high
selectivity
above
95%
both
alkaline
neutral
pH.
A
wide
range
tuning
2e-/4e-
ORR
was
achieved
via
centers
or
neighboring
metalloid
coordination.
Density
functional
theory
calculations
indicate
that
motifs,
sharp
contrast
well-known
Fe-C-N
4e-,
are
responsible
pathway.
This
iron
catalyst
demonstrated
effective
water
disinfection
representative
application.
Advanced Materials,
Journal Year:
2020,
Volume and Issue:
32(11)
Published: Feb. 5, 2020
Solar
vapor
generation
has
presented
great
potential
for
wastewater
treatment
and
seawater
desalination
with
high
energy
conversion
utilization
efficiency.
However,
technology
gaps
still
exist
achieving
a
fast
evaporation
rate
quality
of
water
combined
low-cost
deployment
to
provide
sustainable
solar-driven
purification
system.
In
this
study,
naturally
abundant
biomass,
konjac
glucomannan,
together
simple-to-fabricate
iron-based
metal-organic
framework-derived
photothermal
nanoparticles
is
introduced
into
the
polyvinyl
alcohol
networks,
building
hybrid
hydrogel
evaporators
in
cost-effective
fashion
($14.9
m-2
total
materials
cost).
With
advantageous
features
adequate
transport,
effective
activation,
anti-salt-fouling
function,
achieve
under
one
sun
(1
kW
)
at
3.2
kg
h-1
out
wide
degrees
acidity
alkalinity
(pH
2-14)
high-salinity
(up
330
g
kg-1
).
More
notably,
heavy
metal
ions
are
removed
effectively
by
forming
hydrogen
chelating
bonds
excess
hydroxyl
groups
hydrogel.
It
anticipated
that
study
offers
new
possibilities
deployable,
solar
system
assured
quality,
especially
economically
stressed
communities.
Frontiers in Chemistry,
Journal Year:
2021,
Volume and Issue:
9
Published: July 13, 2021
Diverse
applications
of
nanoparticles
(NPs)
have
revolutionized
various
sectors
in
society.
In
the
recent
decade,
particularly
magnetic
(MNPs)
gained
enormous
interest
owing
to
their
specialized
areas
such
as
medicine,
cancer
theranostics,
biosensing,
catalysis,
agriculture,
and
environment.
Controlled
surface
engineering
for
design
multi-functional
MNPs
is
vital
achieving
desired
application.
The
demonstrated
great
efficacy
thermoelectric
materials,
imaging
agents,
drug
delivery
vehicles,
biosensors.
present
review,
first
we
briefly
discussed
main
synthetic
methods
MNPs,
followed
by
characterizations
composition.
Then
potential
different
with
representative
examples.
At
end,
gave
an
overview
on
current
challenges
future
prospects
MNPs.
This
comprehensive
review
not
only
provides
mechanistic
insight
into
synthesis,
functionalization,
application
but
also
outlines
limits
prospects.
Environmental Science & Technology,
Journal Year:
2020,
Volume and Issue:
54(13), P. 8473 - 8481
Published: June 8, 2020
Nitrogen-doped
carbon
materials
attract
broad
interest
as
catalysts
for
peroxymonosulfate
(PMS)
activation
toward
an
efficient,
nonradical
advanced
oxidation
process.
However,
synthesis
of
N-rich
carbocatalysts
is
challenging
because
the
thermal
instability
desirable
nitrogenous
species
(pyrrolic,
pyridinic,
and
graphitic
N).
Furthermore,
relative
importance
different
configurations
(and
associated
mechanisms)
are
unclear.
Herein,
we
report
a
"coating-pyrolysis"
method
to
synthesize
porous
2D
nanocarbon
(PCN-x)
derived
from
dopamine
g-C3N4
in
weight
proportions.
PCN-0.5
calcined
at
800
°C
had
highest
surface
area
(759
m2/g)
unprecedentedly
high
N
content
(18.5
at%),
displayed
efficiency
4-chlorophenol
(4-CP)
degradation
via
PMS
activation.
A
positive
correlation
was
observed
between
4-CP
rates
total
pyridinic
pyrrolic
content.
These
dopants
serve
Lewis
basic
sites
facilitate
adsorption
on
PCN
subsequent
electron-transfer
PMS,
mediated
by
surface-bound
complexes
(PMS–PCN-0.5).
The
main
products
were
chlorinated
oligomers
(mostly
dimeric
biphenolic
compounds),
which
adsorbed
deteriorated
carbocatalyst.
Overall,
this
study
offers
new
insights
rational
design
nitrogen-enriched
carbocatalysts,
advances
mechanistic
understanding
critical
role
during
