Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 12, 2023
Abstract
Advanced
and
eco-friendly
construction
materials
are
being
developed
to
reduce
pollution
improve
wastewater
treatment
efficiency.
One
such
material
is
a
photocatalytic
nanocomposite
that
uses
industrial
wastes
natural
substances
eliminate
pollution.
A
recent
study
explored
using
an
inorganic
polymer
composite
(FM)
made
from
mixture
of
70%
fly
ash
30%
metakaolin,
with
sodium
hydroxide
silicate
as
alkali
activator.
The
evaluated
the
mechanical
hydration
characteristics
FM
after
28
days
in
100%
humidity
at
room
temperature.
also
examined
effect
adding
2.5
wt.%
Nano-TiO
2
how
it
affects
its
properties.
Results
indicate
enhances
mechanical,
antibacterial,
capabilities.
Specifically,
FM-TiO
showed
90%
removal
reactive
blue
19
dye
effluent
sunlight
90
minutes,
making
excellent
choice
for
sustainable
treatment.
This
presents
cost-effective,
solution
treatment,
added
antimicrobial
properties
.
Journal of Materials Science,
Journal Year:
2024,
Volume and Issue:
59(9), P. 3858 - 3889
Published: Feb. 26, 2024
Abstract
Several
researchers
have
recently
worked
to
create
sustainable
building
materials.
One
of
the
fundamental
prerequisites
for
construction
methods
and
environmental
impact
assessments
is
use
green
materials
manufacturing
processes.
In
this
research
study,
geopolymer
bricks
were
developed
using
polyethylene
terephthalate
waste
different
industrial
by-products
(rice
husk
ash,
ground
granulated
blast
furnace
slag,
red
mud,
construction,
demolition
waste)
investigated
their
performances.
The
was
used
as
a
replacement
sand
filler
in
brick
up
100%.
Key
findings
include
workability
decrease
14.75%
compressive
strength
reduction
75%
with
100%
plastic
replacement,
attributed
increased
voids
weak
matrix
interaction.
Dry
density
consistently
decreases,
water
absorption
rises
13.73%
full
indicating
porous
structure.
Impact
resistance
improves
inclusion,
enhancing
ductility
thermal
conductivity
by
57%
at
replacement.
Microstructural
analyses
reveal
correlations
between
physical–mechanical
properties
changes
porosity,
microcracks,
bond
strength.
Machine
learning,
especially
linear
regression,
proves
effective
parameter
prediction
(up
efficacy,
R-square
0.998).
promising
results
obtained
could
offer
substantial
environmentally
friendly
solution
industry
line
Circular
Economy
principles.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 15, 2025
Abstract
Crystal
violet
(CV),
a
widely
used
dye
in
paints
and
textiles,
poses
significant
environmental
threat
due
to
its
non-biodegradable
nature.
A
modified
slag-based
geopolymer
has
been
developed
address
this
issue
by
incorporating
raw
moringa
seed
powder
(MSP),
an
agricultural
waste.
The
geopolymers
(SM1,
SM2,
SM3)
were
created
adding
different
percentages
of
MSP
(0.2%,
0.6%,
1%
weight)
ground
granulated
blast
furnace
slag
(GGBFS),
using
sodium
silicate
10
M
hydroxide
as
alkali
activators.
This
combination
enhances
the
geopolymer’s
mechanical
adsorbent
properties,
making
it
more
effective
for
CV
removal.
composites
analyzed
X-ray
diffraction
(XRD),
Fourier-transform
infrared
spectroscopy
(FTIR),
scanning
electron
microscopy
(SEM).
Their
properties
evaluated
conducting
compressive
strength
total
porosity
tests.
Pore
structure
analysis
was
performed
nitrogen
adsorption
desorption
techniques,
point
zero
charges
determined.
Additionally,
batch
experiments
carried
out
investigate
dye,
employing
two
isotherm
models
kinetic
analysis.
SM1
mix,
which
is
containing
0.2%
MSP,
exhibited
highest
at
73
MPa
after
180
days,
representing
25.8%
improvement
compared
control
mix
(100%
slag).
Furthermore,
mixes
showed
greater
activity
toward
crystal
with
SM3
achieving
capacity
up
322.58
mg/g.
study
demonstrates
that
capacity.
indicates
positive
impact
on
composite’s
surface
highlights
benefits
utilizing
industrial
waste
wastewater
treatment.
Materials,
Journal Year:
2025,
Volume and Issue:
18(3), P. 601 - 601
Published: Jan. 28, 2025
This
study
analyzes
the
potential
of
olive
pomace
fly
ash
(OPFA)
as
an
alternative
alkaline
activator
for
electric
arc
furnace
slag
(EAFS)
in
manufacture
sustainable
cementitious
materials.
Cements
were
prepared
by
replacing
30–50
wt%
EAFS
with
OPFA
and
compared
control
cements
activated
potassium
hydroxide
(KOH)
at
concentrations
4
8
M.
characterized
bulk
density,
water
absorption,
total
porosity,
compressive
flexural
strength,
well
analytical
techniques
such
XRD,
FTIR
SEM-EDS.
The
results
reveal
that
incorporation
40
provides
optimum
properties,
reaching
maximum
strengths
20.0
MPa
5.7
MPa,
respectively,
after
28
days
curing.
These
improvements
are
attributed
to
increased
formation
C,K-A-S-H
gel,
which
incorporates
Fe,
main
reaction
product
densifies
matrix
reduces
porosity.
However,
30
insufficient
alkali
content,
limits
reaction,
while
excess
50
mechanical
performance
due
unreacted
residues
interconnected
Compared
KOH-activated
cements,
achieve
4.4
9.5
(EAFS/KOH-8M
binders),
confirm
activator,
significant
sustainability
advantages.
Materials,
Journal Year:
2024,
Volume and Issue:
17(6), P. 1431 - 1431
Published: March 21, 2024
The
massive
stockpiling
of
electrolytic
manganese
residue
(EMR)
has
caused
serious
environmental
pollution.
In
this
study,
EMR,
coal
gangue
(CG),
and
fly
ash
(FA)
were
used
as
raw
materials
to
obtain
the
optimal
mix
ratio
based
on
Design-Expert
mixture
design.
effects
activator
modulus,
liquid–solid
(L/S)
ratio,
curing
temperature
mechanical
properties
geopolymers
investigated.
results
showed
that
compressive
strength
prepared
geopolymer
was
12.0
MPa,
28d
leaching
Mn
0.123
mg/L
under
conditions
EMR:CG:FA
=
0.43:0.34:0.23,
L/S
0.9,
a
60
°C,
time
24
h.
This
indicates
is
an
environmentally
friendly
material
with
high
strength.
mineral
composition
mainly
hydrated
calcium
silicate
gel.
addition,
more
stable
new
phase,
MnSiO3,
generated.
Fourier
transform
infrared
(FTIR)
spectrogram
peak
at
1100
m−1
shifted
1112
cm−1,
which
indicated
geopolymerization
reaction
had
occurred.
Through
scanning
electron
microscopy
(SEM)
energy
dispersive
spectrum
(EDS)
analysis,
it
identified
produced
large
amount
amorphous
gelatinous
substances
relatively
dense
structure,
major
elements
being
oxygen,
silicon,
aluminum,
calcium,
sodium.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 5, 2024
Abstract
The
construction
industry
is
exploring
the
use
of
low-cost
waste
materials
to
create
eco-friendly
geopolymer
mortar
binders.
Our
study
aims
develop
various
environmentally
friendly
mixes
for
thermal
and
adsorption
applications
using
natural
like
bentonite
industrial
by-products
such
as
ground-granulated
blast
furnace
slag
fly
ash.
Ternary
pastes
are
prepared
equimolar
amounts
(GBFS)
ash
(FA),
with
6%,
8%,
10%,
12%
weight
(BC)
from
total
replacement
effect.
tested
their
physico-chemical,
mechanical,
adsorption,
stability
properties
(300
°C
900
°C).
behavior
against
crystal
violet
dye
in
aqueous
solutions
also
identified.
found
that
adding
6%
slag/fly
ash-based
mix
yielded
highest
mechanical
characteristics.
Moreover,
all
ternary
exhibited
excellent
up
°C.
In
study,
results
indicated
had
capacities
adhered
well
Freundlich
isotherm
model,
suggesting
potential
treating
wastewater.
Using
offers
a
sustainable,
cost-effective,
heat-resistant
alternative
traditional
cement
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Nov. 14, 2023
Advanced
and
eco-friendly
construction
materials
are
being
developed
to
reduce
pollution
improve
wastewater
treatment
efficiency.
One
such
material
is
a
photocatalytic
nanocomposite
that
uses
industrial
wastes
natural
substances
eliminate
pollution.
A
recent
study
explored
using
an
inorganic
polymer
composite
(FM)
made
from
mixture
of
70%
fly
ash
30%
metakaolin,
with
sodium
hydroxide
silicate
as
alkali
activator.
The
evaluated
the
mechanical
hydration
characteristics
FM
after
28
days
in
100%
humidity
at
room
temperature.
also
examined
effect
adding
2.5
wt.%
Nano-TiO2
how
it
affects
its
properties.
Results
indicate
enhances
mechanical,
antibacterial,
capabilities.
Specifically,
FM-TiO2
showed
90%
removal
reactive
blue
19
dye
effluent
sunlight
90
min,
making
excellent
choice
for
sustainable
treatment.
This
presents
cost-effective,
solution
treatment,
added
antimicrobial
properties
Nano-TiO2.
