Studying the Defects in Spinel Compounds: Discovery, Formation Mechanisms, Classification, and Influence on Catalytic Properties
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(20), P. 1640 - 1640
Published: Oct. 12, 2024
Spinel
ferrites
demonstrate
extensive
applications
in
different
areas,
like
electrodes
for
electrochemical
devices,
gas
sensors,
catalysts,
and
magnetic
adsorbents
environmentally
important
processes.
However,
defects
the
real
spinel
structure
can
change
many
physical
chemical
properties
of
ferrites.
Although
number
a
crystal
lattice
is
small,
their
influence
on
vast
majority
could
be
really
decisive.
This
review
provides
an
overview
structural
characteristics
compounds
(e.g.,
CoFe
Language: Английский
Quantitative Enhancement of Arsenate Immobilization Induced by Vacancy Defects on Various Exposed Lattice Facets of Hematite
Juan Liu,
No information about this author
Jingtao Hou,
No information about this author
Juan Xiong
No information about this author
et al.
Environmental Science & Technology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 31, 2025
Defects
are
common
features
in
hematite
that
arise
from
deviations
the
perfect
mineral
crystal
structure.
Vacancy
defects
have
been
shown
to
significantly
enhance
arsenate
(As)
immobilization
by
hematite.
However,
contributions
vacancy
on
different
exposed
facets
of
not
fully
quantified.
In
this
study,
samples
with
various
morphologies
were
pretreated
sodium
borohydride
(NaBH4)
generate
oxygen
(OVDs),
analyzed
quantitatively
using
extended
X-ray
absorption
fine
structure
(EXAFS)
and
thermogravimetric
analysis
(TG).
Batch
experiments
revealed
OVDs
showed
significant
variations
improving
adsorption,
i.e.,
quantitative
enhancement
adsorption
amount
per
unit
OVD
concentration
(ΔQm/Cdefect)
followed
sequence
(110)
facet
(80.05
μmol/mmoldef)
>
(001)
(31.85
(012)
(13.14
μmol/mmoldef).
The
underlying
mechanism
which
affect
across
was
studied.
results
reveal
tremendous
improvement
caused
compared
attributed
their
stronger
bonding
strength
As
under-coordinated
Fe
atoms,
thus
promoting
arsenate.
findings
study
our
ability
precisely
understand
migration
fate
while
also
aiding
design
highly
efficient
iron
materials
for
mitigating
pollution.
Language: Английский
Palygorskite-supported bimetallic ZIFs-derived cobalt oxides with coexisting cobalt defects and oxygen vacancies for enhanced antibiotic degradation
Journal of environmental chemical engineering,
Journal Year:
2025,
Volume and Issue:
unknown, P. 115611 - 115611
Published: Feb. 1, 2025
Language: Английский
Room-temperature induction of oxygen vacancies in Bi2Fe4O9 for PMS activation and dimethyl phthalate degradation: Mechanism and toxicity evaluation
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 160497 - 160497
Published: Feb. 1, 2025
Language: Английский
Unveiling cutting-edge developments in defective BiOI nanomaterials: Precise manipulation and improved functionalities towards bolstered photocatalysis
Vatika Soni,
No information about this author
Monika Malhotra,
No information about this author
Archana Singh
No information about this author
et al.
Advances in Colloid and Interface Science,
Journal Year:
2025,
Volume and Issue:
340, P. 103467 - 103467
Published: March 6, 2025
Language: Английский
Simulated sunlight-enhanced peroxymonosulfate activation via S-scheme BiOBr/g-C3N4 aerogel heterojunction for multi-pollutant remediation: Band structure and interface engineering
Yourong Wu,
No information about this author
G. S. Dong,
No information about this author
Yangdong Zhang
No information about this author
et al.
Journal of Colloid and Interface Science,
Journal Year:
2025,
Volume and Issue:
unknown, P. 137374 - 137374
Published: March 1, 2025
Language: Английский
Effect of ozonation on the morphological characteristics and adsorption behavior of polystyrene microplastics in aqueous environments
Applied Water Science,
Journal Year:
2025,
Volume and Issue:
15(5)
Published: April 7, 2025
Language: Английский
Electrophilic reactivity of amino group for indicating sulfadiazines oxidation: Insights on the selective oxidation and conversion of singlet oxygen
Applied Catalysis B Environment and Energy,
Journal Year:
2025,
Volume and Issue:
unknown, P. 125407 - 125407
Published: April 1, 2025
Language: Английский
Effect of endogenous/exogenous humic acid on permonosulfate activation properties of compost product derived biochar: efficiency, regularity, and mechanism
Ting Wu,
No information about this author
Zuyong Chen,
No information about this author
Zhifeng Liu
No information about this author
et al.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
unknown, P. 158895 - 158895
Published: Dec. 1, 2024
Language: Английский
Asymmetric Charge Distribution in Atomically Precise Metal Nanoclusters for Boosted CO2 Reduction Catalysis
Yuanxin Du,
No information about this author
Pei Wang,
No information about this author
Yi Fang
No information about this author
et al.
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Recently,
atomically
precise
metal
nanoclusters
(NCs)
have
been
widely
applied
in
CO
Language: Английский