Crystal Growth & Design,
Год журнала:
2023,
Номер
23(9), С. 6557 - 6569
Опубликована: Авг. 7, 2023
Multiple
stimulus
responses
of
the
novel
triazine
frameworks
(1–2)
are
constructed
by
building
block
Lnx(COO)y
with
reaction
a
flexible
hexacarboxylic
acid
2,4,6-tris(3,5-dicarboxyanilino)-1,3,5-triazine
(H6TDPAT)
and
corresponding
rare
earth
nitrate
under
solvothermal
conditions.
In
similar
condition,
we
successfully
introduced
1,1′-[1,4-phenylbis-(methylene)]bis(4,4′-bipyridine)
dichloride
(pbpyCl2)
into
pores
obtained
compound
3.
The
effect
addition
amount
pbpyCl2
on
framework
structure
is
discussed
in
detail.
Compounds
1–3
characterized
elemental
analysis,
infrared
spectroscopy,
ultraviolet
thermogravimetric
X-ray
powder
diffraction.
Based
excellent
fluorescence
sensing
properties
compounds
2
3,
also
explore
nitro
investigate
their
mechanisms.
results
show
that
has
best
response
2,4,6-trinitrophenol
(TNP)
3
sensitive
detection
ability
p-nitrophenol
(PNP)
p-nitroaniline
(p-NA).
Environmental Research,
Год журнала:
2023,
Номер
240, С. 117477 - 117477
Опубликована: Ноя. 1, 2023
The
growing
demand
for
food
has
led
to
an
increase
in
the
use
of
herbicides
and
pesticides
over
years.
One
most
widely
used
is
glyphosate
(GLY).
It
been
extensively
since
1974
weed
control
currently
classified
by
World
Health
Organization
(WHO)
as
a
Group
2A
substance,
probably
carcinogenic
humans.
industry
academia
have
some
disagreements
regarding
GLY
toxicity
humans
its
effects
on
environment.
Even
though
this
herbicide
not
mentioned
WHO
water
guidelines,
countries
decided
set
maximum
acceptable
concentrations
tap
water,
while
others
ban
crop
production
completely.
Researchers
around
world
employed
different
technologies
remove
or
degrade
GLY,
mostly
at
laboratory
scale.
Water
treatment
plants
combine
it
alongside
other
pollutants,
cases
achieving
removal
efficiencies.
Certainly,
there
are
many
challenges
upscaling
purification
due
costs
lack
factual
information
about
their
adverse
effects.
This
review
presents
that
from
2012
date,
detection
methods,
challenges,
future
perspectives.
Bioresource Technology,
Год журнала:
2025,
Номер
unknown, С. 132095 - 132095
Опубликована: Янв. 1, 2025
In
this
work,
the
effect
of
electro-assisted
Fenton
(EAF)
process
on
bacterial
community
a
moving
bed
biofilm
reactor
(MBBR)
for
olive
mill
wastewater
(OMW)
co-treatment
with
urban
(UWW)
was
investigated.
According
to
metagenomic
analysis,
pre-treatment
by
EAF,
while
removing
total
phenols
(TPHs)
up
84
%
±
3
and
improving
biodegradability
OMW
from
0.38
0.62,
led
emergence
genera
in
MBBR
(R2)
that
were
not
detected
under
conditions
without
(R1).
Indeed,
condition,
Candidatus
Competibacter
replaced
Amaricoccus
as
dominant
denitrifying
bacteria.
both
cases,
composition
matched
high
simultaneous
nitrification-denitrification
efficiency
(up
98
%).
Finally,
Chlorobium
(2.5-4.1
%),
sulphate-reducing
bacteria
Geobacter
1.6
0.4
anaerobic
utilise
iron
oxides,
observed
exclusively
EAF
application,
suggesting
potential
development
new
integrated
microbial
electrochemical
systems.
Separations,
Год журнала:
2025,
Номер
12(5), С. 103 - 103
Опубликована: Апрель 22, 2025
In
this
study,
eco-friendly
and
sustainable
alginate-activated
carbon
(Alg-C)-based
beads
were
synthesized
characterized
for
the
adsorption
of
nonylphenols
(NPs)
from
aqueous
environments
under
various
conditions.
The
surface
characterization,
functional
groups,
behavior
analyzed
using
multiple
analytical
techniques.
effect
key
parameters,
including
dosage,
pH,
temperature,
reusability,
evaluated.
Isotherm
kinetic
studies
revealed
that
process
followed
a
pseudo-second-order
model
aligned
with
Freundlich
isotherm,
indicating
heterogeneous
surface.
exhibited
high
removal
efficiency
97%
over
five
reuse
cycles
in
50
mL
solution
10
mg
L−1
NPs
static
conditions,
demonstrating
their
recyclability.
Thermodynamic
analysis
suggested
potential
electrostatic
interactions,
supported
by
positive
Gibbs
free
energy
values.
highest
performance
was
achieved
within
90
min,
capacities
0.10
to
0.39
g−1.
Additionally,
Alg-C
remained
stable
across
different
pH
levels,
highlighting
robustness.
When
tested
wastewater
samples,
maintained
efficiency,
no
significant
matrix
effects
observed.
These
results
underscore
as
promising
elimination
contaminated
water
sources.
International Journal of Environmental & Analytical Chemistry,
Год журнала:
2024,
Номер
unknown, С. 1 - 21
Опубликована: Янв. 5, 2024
The
activated
carbon
was
prepared
from
single
use
surgical
masks
(SUSM)
by
hydrothermal
method,
resulting
in
a
synthesised
material
termed
SMAC.
physico-chemical
properties
of
SMAC
were
analysed.
XRD
pattern
showed
the
amorphous
nature,
FT-IR
spectrum
displayed
characteristic
peaks
polypropylene,
zeta
potential
analysis
revealed
negative
surface
charge,
SEM
fibre
morphology
and
XPS
results
confirmed
presence
oxygen,
sulphur
compounds.
adsorption
analysed
using
4-nitrophenol
(4-NP)
2,4-dicholorophenol
(2,4-DCP)
aqueous
solution.
linear
nonlinear
pseudo-first
order,
pseudo-second
Elovich,
intraparticle
diffusion,
external
diffusion
models
isotherms
with
Langmuir,
Freundlich,
Temkin
examined
data.
kinetics
isotherm
have
better
fit
compared
models.
fitted
order
(0.9987
&
0.9962)
Elovich
model
(0.9964
described
process
leading
chemisorption
fairly
than
physisorption.
Langmuir
maximum
capacity
for
4-NP
2,4-DCP
89.46
141.88
mg/g,
respectively.
Further,
thermodynamic
study
explained
that
onto
is
an
endothermic
reaction.
Among
two
regenerating
agents
(HCl
NaOH),
0.1
M
NaOH
favoured
desorption
(46%)
(40%)
recyclability
studies
67%
64%
removed
after
third
cycle,
conclude
efficient
adsorbent
phenols
economically
viable.
