Guadua angustifolia biochar/TiO2 composite and biochar as bio-based materials with environmental and agricultural application
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 2, 2025
Globally,
the
companies
that
make
commercial
use
of
bamboo
culms
produce
different
kinds
solid
waste
rich
in
lignocellulosic
biomass,
which
some
cases
is
not
used
and
discarded
landfills
or
incinerated
open
air;
losing
possibility
recovering
them
using
other
productive
sectors.
The
research
objective
were
to
a
biochar
from
Guadua
agustifolia
Kunth
sawdust,
evaluate
its
potential
environmental
agricultural
use,
obtain
biochar/TiO2
composite
inactivate
Escherichia
coli
as
soil
conditioner
medicinal
plants
producing
phenolic
compounds
flavonoids.
Biochar
(produced
at
300
°C
for
1
h)
involved
TiO2
450
h
inactivation
E.
(initial
concentration:
6.5
±
0.3
Log10
CFU
mL−
1).
For
agriculture,
2%
was
B.
pilosa
L.
G.
angustifolia
plant
growth
90
days.
had
high
photocatalytic
activity
on
coli,
generating
final
count
1.97
0.2
after
60
min.
(2%)
increased
total
phenol
flavonoid
content
phenols
angustifolia,
tested
nursery
stage.
This
study
provides
new
information
conversion
sawdust
an
alternative
bio-based
materials
with
applications.
In
addition,
obtaining
could
positively
impact
production
chain
Colombia
because
renewable
globally
accepted
alternatives
help
capture
gaseous
emissions
causing
greenhouse
effect.
Language: Английский
Psidium guajava (guava) leaves derived functional activated carbon as a heterogeneous catalyst for conversion of Jatropha curcas oil to biodiesel
Arpita Das,
No information about this author
Aditya Prasad Jati,
No information about this author
Manickam Selvaraj
No information about this author
et al.
Journal of Analytical and Applied Pyrolysis,
Journal Year:
2024,
Volume and Issue:
181, P. 106636 - 106636
Published: July 8, 2024
Language: Английский
Kinetics and simulation of biodiesel production using a geopolymer heterogenous catalyst
Pascal Mwenge,
No information about this author
Bulanga Djemima,
No information about this author
Simphiwe Zwane
No information about this author
et al.
Journal of Environmental Science and Health Part A,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 13
Published: Nov. 26, 2024
This
work
aims
to
develop
a
comprehensive
kinetic
and
simulation
study
of
biodiesel
production
using
waste
cooking
oil
(WCO)
catalyzed
by
blast
furnace
slag
geopolymer
(BFSG)
as
heterogeneous
catalyst.
The
investigation
was
established
following
the
pseudo-first
second-order
model
three
reaction
parameters,
namely,
temperature
(40–60
°C),
time
(4–8
h)
catalyst
ratio
(6–14
wt.%),
while
maintaining
constant
methanol-to-oil
composition
40
wt.%.
geopolymer-catalyzed
transesterification
process
simulated
ChemCAD
version
8.1.0,
which
incorporates
four
major
triglycerides
(triolein,
tripalmitin,
tristearin
triolein)
WCO.
results
WCO
in
plug
flow
reactor
(PFR)
demonstrated
good
fit
data,
with
an
R2
above
0.96
both
cases.
pseudo-first-order
(PFO)
revealed
more
favorable
pathway,
activation
energy
58.876
kJ.mol−1,
opposed
value
131.369
kJ.mol−1
obtained
from
pseudo-second-order
(PSO)
analysis.
catalytic
activity
BFSG
yielded
maximum
conversion
99.18%
at
12
wt.%
ratio.
effectiveness
promising
low-cost
technology
for
industry.
Language: Английский
Recent advances of biodiesel production enhanced by external field via heterogeneous catalytic transesterification system
Mengmeng Yue,
No information about this author
Samuel Lalthazuala Rokhum,
No information about this author
Xiaoling Ma
No information about this author
et al.
Chemical Engineering and Processing - Process Intensification,
Journal Year:
2024,
Volume and Issue:
205, P. 109997 - 109997
Published: Sept. 16, 2024
Language: Английский
Modelling and optimisation of thermal expansion and thermal conductivity using face-centred central composite design-based response surface methodology: An experimental approach
Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 3, 2024
Due
to
the
shortage
in
availability
of
potable
water
risk
scarcity
has
reached
its
heights.
Researchers
have
developed
methods
increase
various
ways.
Solar
desalination
technique
using
solar
still
would
assure
efficient
yield.
Thermal
energy
plays
an
essential
role
output
efficiency
PV
panel
and
production
still.
The
purpose
our
paper
is
focused
on
optimisation
thermal
properties
Aluminium,
Copper
Iron.
To
obtain
optimised
value
namely
conductivity
expansion
approach
called
response
surface
methodology
used.
It
reduce
count
which
experiment
repeated
as
it
a
pre-determined
set
input
parameters
further
helps
cost
reduction.
are
volume
percentage
Aluminium-0.17
percentage,
Copper-2.42
Iron-2.64
percentage.
optimized
values
obtained
expansion.
A
method
two-probe
used
for
determining
Buoyancy
considered
samples.
inferred
from
ANOVA.
For
conductivity,
Adjusted
R
2
0.9796
0.9032.
Standard
Deviation
observed
be
0.202
whereas
Mean
0.4666.
resulting
0.467
W/(m*K)
1.534*10
−5
(1/K).
This
ensured
reduced
repetition
experimental
run
identify
optimal
system
through
central
composite
design.
Language: Английский
Experimental Investigations on the Comparison of Multi-Objective Design for High Thermal Energy Applications: An Insight into Response Surface Methodology
Energy Sources Part A Recovery Utilization and Environmental Effects,
Journal Year:
2024,
Volume and Issue:
46(1), P. 30 - 47
Published: Oct. 29, 2024
This
paper
focuses
on
optimizing
the
thermal
properties
of
aluminum,
copper,
and
iron.
Response
Surface
Methodology
was
employed
to
determine
optimal
values
for
conductivity
expansion,
minimizing
experimental
repetitions,
reducing
costs
by
using
pre-determined
input
parameters.
These
parameters
include
volume
percentages
The
optimized
output
expansion
are
measured
two-probe
method
buoyancy
method,
respectively,
inferred
from
ANOVA.
is
utilized
optimization,
various
approaches
analyzed
Central-Composite-Design,
Box-Behnken-Design,
Full-Factorial-Design,
Optimal-I
method.
For
deviations
1.07
0.98
with
R2
0.9898
0.9355
F
96.910
29.
39.42
26.83
0.86
0.89
20.2936
17.3521.
BBD,
13.49
22.47
0.9756
0.9768,
66.5
70.1.
Optimal-I,
12.67
22.56
0.9937
0.9793,
87.38
63.02.
Language: Английский