npj Clean Water,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: May 17, 2024
Abstract
In
this
study,
a
simple
thermal
reduction
process
is
used
to
synthesize
rGO-Ca
2
Fe
O
5
(rGO-CFO)
nanocomposite,
with
the
morphological
and
optical
characteristics
of
CFO
nanomaterial
being
modified
by
rGO
incorporation.
The
interface
between
nanosheets
nanoparticles
facilitates
efficient
charge
separation
resulting
transfer
photogenerated
carriers
across
nanosheets,
demonstrated
from
photoluminescence
Mott-Schottky
tests.
Compared
(2.1
eV),
rGO-CFO
has
reduced
band
gap
energy
1.9
eV.
As
synthesized
nanocomposites
were
initially
optimized
utilized
for
photodegradation
organic
effluent
Methylene
blue
(MB).
An
addition
wt%
an
improved
efficiency
(97%)
compared
bare
(72%).
active
species
trapping
experiment
was
assess
MB
mechanism.
results
demonstrate
that
hydroxyl
radicals
holes
are
major
involved
in
photodegradation.
composition
(5rGO-CFO)
further
tested
degradation
Bisphenol-A
Tetracycline
(antibiotic).
Altogether,
these
investigations
show
highly
photocatalyst
can
be
remediate
emerging
contaminants
sunlight.
Journal of applied science and environmental management,
Journal Year:
2024,
Volume and Issue:
28(4), P. 1007 - 1051
Published: April 29, 2024
Heavy
metal
pollution
is
a
significant
environmental
concern
in
Nigeria,
posing
risks
to
ecological
integrity
and
public
health.
This
study
aims
evaluate
the
existing
policies
regulations
addressing
heavy
pollution,
assess
their
effectiveness,
propose
recommendations
for
improvement.
The
analysis
reveals
that
while
Nigeria
has
established
robust
legislative
framework,
challenges
implementation,
enforcement,
funding
persist.
impact
of
reducing
influenced
by
resource
constraints,
limited
capacity,
need
stronger
collaboration
between
regulatory
bodies
industries.
Community
involvement
education
play
crucial
role
managing
emphasizing
importance
awareness,
sustainable
practices,
local
engagement.
Remediation
strategies,
such
as
bioremediation
phytoremediation,
offer
potential
solutions.
However,
gaps
knowledge
research
exist,
calling
long-term
monitoring,
assessments,
comprehensive
health
risk
assessments.
To
enhance
effectiveness
current
policies,
periodic
reviews,
increased
funding,
community-based
monitoring
programs
are
recommended.
By
these
implementing
proposed
recommendations,
can
make
strides
towards
mitigating
achieving
sustainability.
Accounts of Chemical Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 2, 2025
ConspectusChiral
metal-organic
frameworks
(MOFs)
are
promising
candidates
as
luminescent
sensing
materials
for
chiral
species,
which
essential
components
in
modern
industries,
pharmaceuticals,
and
biological
processes.
The
discrimination
of
enantiomers
with
highly
similar
physical
chemical
properties
is
crucial
because
they
often
present
concurrently
the
same
system
but
may
feature
distinct
effects
on
living
matters.
While
rapid
precise
capabilities
MOFs
outshine
traditional
detection
methods
species
daily
life,
production,
natural
environment,
it
requires
well-matched
electronic
structures
between
species.
Yet,
conventional
strategies
to
construct
immensely
challenging
due
crystallization
difficulties
based
low-symmetric
building
blocks.Recent
advancements
MOF
chemistry
have
led
novel
pathways
synthesizing
enantioselective
sensing.
Compared
direct
synthesis
using
optically
pure
ligands,
usually
complex
costly,
indirect
has
garnered
significant
attention
reduced
costs,
simplified
synthesis,
enhanced
material
stability,
broad
application
scope.
In
past
few
years,
our
group
developed
guest
ion
exchange,
coordination
modification,
defect
engineering
indirectly
MOFs.
exchange
cost-effective
introducing
ions
into
pores
can
be
applied
only
charged
frameworks.
addition,
also
faces
limitations
availability
tendency
toward
chirality
loss
during
process.
Besides,
compared
modification
maintain
stability
stronger
bonds.
Still,
accessible
open
metal
sites
that
bind
disordered
dangling
molecules,
complicating
structural
determination.
Therefore,
specific
such
linker
installation
dual-end
been
afford
well-defined
crystal
structures.
all
aforementioned
decrease
MOFs'
pore
sizes
a
certain
degree,
we
further
approach
enlarge
size
introduce
center
simultaneously.
Such
competitive
strategy
facile
low-cost
expanded
many
well-known
stable
MOFs.In
this
Account,
delve
intricate
evolution
constructing
tailored
applications.
We
provide
detailed
analysis
progression
innovation
within
field,
tracing
development
MOF-based
luminescence
sensors.
By
systematically
reviewing
various
synthetic
approaches,
work
highlights
their
respective
strengths
limitations.
Beyond
state
art,
Account
offers
forward-looking
insights
aiming
inspire
design
next-generation
These
advanced
hold
promise
versatile
impactful
applications
across
beyond.
