Arabian Journal of Chemistry,
Journal Year:
2023,
Volume and Issue:
16(10), P. 105110 - 105110
Published: June 28, 2023
Amoxicillin
(AMOX)
in
wastewater
can
promote
antibiotic
resistance
bacteria
and
affecting
aquatic
ecosystems,
due
to
inadequate
removal
by
conventional
treatment
plants.
This
study
aimed
(i)
optimizing
Tecoma
chip
wood
based
activated
carbon
(TCAC)
adsorb
amoxicillin
using
response
surface
methodology
(RSM)
(ii)
evaluating
AMOX
adsorption
through
batch
continuous
modes.
The
RSM
revealed
the
optimum
conditions
be
657
W,
20
min
0.99
g/g
for
radiation
power,
time
impregnation
ratio
(IR),
respectively.
These
resulted
efficiency
of
88.07
mg/g
27.68
%
TCAC's
yield.
BET
area
total
pore
volume
TCAC
were
924.85
m2/g
0.3485
cm3/g
was
occupied
with
several
functional
groups
namely
primary
amine,
hydroxy,
alkyl
carbonate
terminal
alkyne.
enhanced
process
forming
hydrogen
bond
molecules.
isotherm
that
AMOX-TCAC
system
obeyed
Langmuir
model
maximum
monolayer
capacity,
Qm
is
357.14
mg/g.
Pseudo-second
order
(PSO)
fitted
best
kinetic
studies.
Boyd
plot
divulged
rate
limiting
step
film
diffusion.
Thermodynamic
confirmed
endothermic,
spontaneous
controlled
physisorption.
In
bed
column
studies,
percentage
adsorbates
found
increase
when
flowrate
decreased,
initial
concentration
height
increased.
For
breakthrough
curve
model,
Yoon
Nelson
model.
demonstrated
its
efficacy
AMOX,
proving
successful
both
mode
operations.
findings
suggest
potential
scaling
up
production
industrial
purposes,
indicating
suitability
larger-scale
applications.
Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
355, P. 124018 - 124018
Published: April 30, 2024
Fe
and
N
co-doped
walnut
shell
biochar
(Fe,N-BC)
was
prepared
through
a
one-pot
pyrolysis
procedure
by
using
shells
as
feedstocks,
melamine
the
source,
iron(III)
chloride
source.
Moreover,
pristine
(BC),
nitrogen-doped
(N-BC),
α-Fe2O3-BC
were
synthesized
controls.
All
materials
characterized
different
techniques
used
for
activation
of
peroxymonosulfate
(PMS)
degradation
sulfamethoxazole
(SMX).
A
very
high
rate
SMX
(10
mg/L)
achieved
with
Fe,N-BC/PMS
(0.5
min-1),
which
higher
than
those
BC/PMS
(0.026
N-BC/PMS
(0.038
α-Fe2O3-BC/PMS
(0.33
min-1)
under
same
conditions.
This
is
mainly
due
to
formation
Fe3C
iron
oxides,
are
reactive
PMS.
In
next
step,
Fe,N-BC
employed
composite
membrane
structure
liquid-induced
phase
inversion
process.
The
ultrafiltration
not
only
exhibited
separation
performance
humic
acid
sodium
salt
(HA,
98%)
but
also
improved
self-cleaning
properties
when
applied
rhodamine
B
(RhB)
filtration
combined
PMS
solution
cleaning
procedure.
Scavenging
experiments
revealed
that
1O2
predominant
species
responsible
SMX.
transformation
products
possible
pathways
identified.
Furthermore,
toxicity
assessment
overall
intermediate
lower
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
490, P. 151932 - 151932
Published: May 5, 2024
Peracetic
acid
(PAA)-based
advanced
oxidation
processes
(AOPs)
are
promising
technologies
for
the
efficient
treatment
of
persistent
contaminants
in
wastewater.
In
this
study,
three
different
magnetic
biochar
(BC)-ferrospinel
AFe2O4
(A
=
Cu,
Co,
or
Mn)
nanocomposites
were
synthesized
through
a
combined
sol–gel/pyrolysis
process
activation
PAA
to
degrade
carbamazepine
(CBZ).
The
following
order
efficiency
was
observed
CBZ
degradation
presence
PAA:
BC-CoFe2O4
(100
%)
>
BC-MnFe2O4
(7
≈
BC-CuFe2O4
%).
addition,
0.8
mM
PAA,
0.3
g/L
catalyst,
nearly
neutral
pH,
and
333
K
identified
as
optimal
operating
parameters
1
mg/L
BC-CoFe2O4/PAA
system.
Mechanistic
studies
revealed
that
CH3C(O)OO
radicals
dominant
active
species
system,
continuous
conversion
Co(II)
Co(III)
system
is
responsible
generation
these
radicals.
water
matrices
(e.g.,
humic
(20
mg/L),
NaCl
(0.05
M),
NaNO3
(0.01
M))
played
negligible
roles
This
exhibited
highly
selective
reactive
organic
pollutants
with
electron-rich
groups
(0.36
min−1),
sulfamethoxazole
(0.12
diclofenac
(0.28
min−1)).
Furthermore,
products
identified,
possible
pathways
toxicity
transformation
proposed.
demonstrated
outstanding
performance
dynamic
systems
real
wastewater
applications.
study
describes
an
easy-to-separate
catalyst
PAA.
facilitates
development
application
PAA-based
AOPs
treatment.
Chemosphere,
Journal Year:
2025,
Volume and Issue:
375, P. 144252 - 144252
Published: Feb. 27, 2025
Increase
in
the
antibiotic's
usage
and
mis-management
antibiotics'
disposal
has
led
to
occurrence
of
antibiotic
residues
surface
water
bodies.
These
may
pose
considerable
risks
human
as
well
aquatic
organisms
owing
enhancement
antimicrobial
resistance
among
microbes.
Hence,
precautionary
measures
are
need
hour
curtail
compounds
water.
In
addition,
rampant
burning
agricultural
waste
India
causes
air
pollution.
Considering
this,
a
novel
adsorbent
been
developed
from
biomass,
viz.
wheat
straw
(WS),
through
calcination
(CWS),
followed
by
chemical
activation
(AWS).
adsorbents
were
employed
for
removal
ciprofloxacin
(CIP)
Removal
efficiency
90%
(for
CWS)
98%
AWS)
could
be
achieved
at
neutral
pH
room
temperature
conditions.
The
maximum
adsorption
capacity
on
synthesized
was
evaluated
14.51
mg
g-1.
Experimental
findings
further
explored
get
insights
isotherm,
kinetics,
thermodynamics
involved
process.
It
found
that
Langmuir
model
(with
R2
value
0.985)
provided
better
fit
than
other
isotherm
models.
Kinetics
thermodynamic
studies
revealed
process
pseudo
second
order
linear
kinetic
0.999)
with
endothermic
spontaneous
sorption
adsorbent.
Thus,
suitably
used
antibiotics
EcoMat,
Journal Year:
2023,
Volume and Issue:
5(12)
Published: Oct. 10, 2023
Abstract
In
light
of
the
uprising
global
development
on
sustainability,
an
innovative
and
environmental
friendly
wood‐based
material
derived
from
natural
pinewood
has
been
developed
as
a
high‐performance
alternative
to
petrochemical‐based
materials.
The
functional
material,
named
BC‐CaCl
2
,
is
synthesized
through
coordination
carboxyl
groups
(−COOH)
present
in
with
calcium
ions
(Ca
2+
),
which
facilitates
formation
high‐density
cross‐linking
structure
combined
action
intermolecular
hydrogen
bonds.
as‐prepared
exhibits
excellent
tensile
strength
(470.5
MPa)
flexural
(539.5
MPa),
establishing
robust
structural
basis
for
Meanwhile,
shows
good
water
resistance,
thermal
conductivity,
stability,
UV
corrosion
antibacterial
properties.
represents
viable
Its
potential
application
areas
include
waterproof
enclosure
buildings,
indoor
underfloor
heating,
outdoor
resistant
protective
cover,
anti‐corrosion
materials
installation
engineering,
so
forth.
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