Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(46), P. 19936 - 19954
Published: Nov. 11, 2024
With
the
rapid
development
of
chemical
and
pharmaceutical
industries,
fluoride
ion
contamination
has
become
an
increasingly
serious
issue
in
recent
years.
Addressing
large
volumes
fluoride-containing
wastewater
emerged
as
a
critical
research
topic.
This
article
begins
by
discussing
harmful
effects
ions
on
human
health
then
reviews
various
technologies
for
controlling
pollution
water,
with
focus
adsorption
methods.
Among
minerals
employed
adsorption,
attapulgite
stands
out
due
to
its
excellent
physicochemical
properties,
abundant
reserves,
low
cost,
making
it
widely
used
material
treatment
wastewater.
However,
comprehensive
evaluation
attapulgite-based
adsorbent
materials
yet
be
established.
review
summarizes
preparation,
application
development,
mechanisms
composite
materials.
It
also
offers
constructive
suggestions
fully
utilizing
attapulgite's
inherent
emphasizing
potential
regeneration
recycling,
inspire
new
approaches
developing
more
efficient
adsorbents
future.
Toxics,
Journal Year:
2024,
Volume and Issue:
12(5), P. 306 - 306
Published: April 23, 2024
Contamination
of
groundwater
with
fluoride
represents
a
significant
global
issue,
high
concentrations
posing
serious
public
health
threats.
While
is
critical
element
in
water,
excessive
levels
can
be
detrimental
to
human
and
potentially
life-threatening.
Addressing
the
challenge
removing
from
underground
water
sources
via
nanotechnological
approaches
pressing
concern
environmental
science.
To
collate
relevant
information,
extensive
literature
searches
were
conducted
across
multiple
databases,
including
Google
Scholar,
PubMed,
Scopus,
Web
Science,
American
Chemical
Society,
Elsevier,
Springer,
Royal
Society
Chemistry.
VOS
Viewer
software
version
1.6.20
was
employed
for
systematic
review.
This
article
delivers
an
exhaustive
evaluation
various
removal
techniques,
such
as
adsorption,
membrane
filtration,
electrocoagulation,
photocatalysis,
ion
exchange.
Among
these,
application
nanoparticles
emerges
notable
method.
The
delves
into
nano-compounds,
optimizing
conditions
process
benchmarking
their
efficacy
against
other
techniques.
Studies
demonstrate
that
advanced
nanotechnologies—owing
rapid
reaction
times
potent
oxidation
capabilities—can
remove
effectively.
implementation
nanotechnologies
not
only
enhances
quality
but
also
contributes
safeguarding
health.
Oriental Journal Of Chemistry,
Journal Year:
2025,
Volume and Issue:
41(2), P. 471 - 481
Published: April 28, 2025
Excess
fluoride
in
drinking
water
poses
significant
health
risks,
necessitating
the
development
of
efficient
and
sustainable
removal
methods.
This
study
investigates
using
a
novel
hybrid
material,
zirconium-loaded
agar-agar-based
activated
biochar
(Zr-AAABC),
derived
from
Ricinus
communis
leaves,
for
water-based
solution.
The
Zr-AAABC
was
synthesised
by
impregnating
castor
tree
leaves
with
zirconium
metal
ions,
utilising
chemical
thermal
activation
techniques,
including
24-hour
treatment
2M
sulfuric
acid.
Temperature
(20-90°C),
adsorbent
dose
(0.1-1.5
mg/L),
adsorption
duration
(10-180
minutes),
pH
levels
(1-13),
initial
concentration
(10-100
mg/L)
were
among
variables
tested
to
determine
Zr-AAABC's
performance.
We
validated
bio
adsorbent's
composition
structure
SEM,
FTIR
ImageJ
software.
results
experiment,
which
demonstrated
good
match
Langmuir
isotherm
model
pseudo-second-order
kinetic
model,
are
consistent
monolayer
on
homogeneous
surface.
optimal
parameters
as
follows:
1
g
dose,
2
hours
contact
time,
60°C
temperature,
10
mg/L
starting
concentration,
7.
obtained
92%
under
above
conditions.
However,
we
only
82%
leaf
biochar.
Our
suggest
that
provides
alternative
conventional
filtration
methods,
standard
biochar,
potential
removal.
Processes,
Journal Year:
2024,
Volume and Issue:
12(9), P. 2043 - 2043
Published: Sept. 22, 2024
Exposure
to
excessive
concentrations
of
fluoride
in
potable
water
is
harmful
human
health;
therefore,
its
limitation
deemed
necessary.
Among
the
commonly
applied
technologies,
adsorption
selected,
as
it
a
highly
effective,
simple,
and
economically
efficient
treatment.
In
present
study,
several
combinations
chitosan
(CS),
orange
peels
(OP),
activated
carbon
(AC),
MgO
were
synthesized
tested
adsorbents
order
find
most
effective
derivative
for
extraction.
The
impact
adsorbent
dosage,
pH
level,
contact
time,
initial
concentration
was
investigated
assess
feasibility
chitosan/orange
peels/activated
carbon@MgO
composite.
According
results,
modification
with
AC,
OP,
unique
(CS/OP/AC@MgO),
especially
acidic
conditions
(pH
3.0
±
0.1)
by
using
1.0
g/L
adsorbent,
demonstrated
highest
efficiency
F
removal,
up
97%.
pseudo-second
(PSO)
model
Langmuir
isotherm
fit
better
experimental
CS/OP/AC@MgO,
providing
Qm
=
26.92
mg/g.
Thermodynamic
analysis
confirmed
spontaneous
nature
process.
structure
morphology
modified
OP/CS@AC-Mg
extensively
characterized
BET,
XRD,
FTIR,
SEM
techniques.
Brazilian Journal of Development,
Journal Year:
2024,
Volume and Issue:
10(1), P. 1713 - 1799
Published: Jan. 24, 2024
Natural
Zeolites
are
crystalline
aluminosilicates
with
very
particular
properties,
both
physical
and
chemical,
such
as
reversible
water
adsorption,
ion
exchange
without
modifications
in
their
structure,
the
adsorption
of
molecules,
acting
a
molecular
sieve.
In
present
work,
review
main
applications
(ZNs)
has
been
carried
out.
Essential
topics
have
previously
introduced
to
understand
nature
ZNs,
from
discovery,
origin,
properties;
primary
deposits
worldwide
also
mentioned.
The
importance
these
materials
increasing
over
time
due
wide
variety
implemented,
thanks
creativity
ingenuity
researchers.
From
(II)
applied
removal
heavy
metals,
ammonium
ion,
arsenic,
fluorine,
etc.,
Agriculture
(fertilizers,
animal
nutrition,
soil
amendment),
(the
development
agribusiness
generates
substantial
amounts
wastewater).
Medicine
(disinfection
for
Escherichia
coli,
mycotoxins,
bacteria,
antiviral,
among
others),
Catalysis,
Space
Project,
etc.
above
justifies
name
that
Mumpton
gave
ZNs:
“The
magic
rock.”
This
shows
some
summarized
examples
provides
other
references
on
each
topic.
Innovative
continue
be
obtained
literature,
this
“mini-review”
is
hoped
helpful.
