---
OA_type: closed access
_id: '18558'
abstract:
- lang: eng
text: The current investigation presents a facile and cost-effective sol-gel approach
for the synthesis of phase-pure multiferroic bismuth ferrite (BiFeO3) nanoparticles
(BFO NPs) by using propylene glycol as a complexing agent, intended for use as
a photocatalyst to efficiently degrade organic dyes in aqueous solutions under
natural sunlight. Characterization techniques, including thermogravimetric analysis
(TGA), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction
(XRD), elucidated a plausible reaction pathway for the formation of phase-pure
BFO NPs. Rietveld refinement of the XRD data, in conjunction with transmission
electron microscopy (TEM) and Raman spectroscopy, confirmed the synthesis of single-phase
BFO NPs at 400 °C, displaying a space group of R3c and an average crystallite
size of 25 nm. UV–visible diffuse reflectance spectroscopy revealed an absorption
cut-off wavelength near 590 nm, corresponding to a band gap of 2.08 eV, indicating
the capability of BFO NPs to absorb visible light within the 400–590 nm range.
BFO NPs have shown efficient and rapid photocatalytic degradation of methylene
blue (MB) in acidic, neutral, and basic pH conditions under natural sunlight.
This is attributed to the intrinsic ferroelectric and ferromagnetic ordering present
in synthesized BFO NPs which facilitates the separation and migration of photoinduced
charges through band bending phenomena at the interface.
acknowledgement: "Simant Kumar Srivastav greatly acknowledges the University Grant
Commission (UGC), New Delhi, India for providing BSR start-up grant to carry out
this research work.\r\nThis research was supported by start-up grant of the University
Grant Commission (UGC), New Delhi, India through project no F-30-500/2019 (BSR)."
article_processing_charge: No
article_type: original
author:
- first_name: Madhu
full_name: Verma, Madhu
last_name: Verma
- first_name: Ajay
full_name: Kumar, Ajay
last_name: Kumar
- first_name: Vijay Kumar
full_name: Thakur, Vijay Kumar
last_name: Thakur
- first_name: Akanksha
full_name: Maurya, Akanksha
last_name: Maurya
- first_name: Sachin
full_name: Kumar, Sachin
last_name: Kumar
- first_name: Saurabh
full_name: Singh, Saurabh
id: 12d625da-9cb3-11ed-9667-af09d37d3f0a
last_name: Singh
orcid: 0000-0003-2209-5269
- first_name: Simant Kumar
full_name: Srivastav, Simant Kumar
last_name: Srivastav
citation:
ama: Verma M, Kumar A, Thakur VK, et al. Efficient and rapid sunlight-driven photocatalytic
degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles. Journal
of Sol-Gel Science and Technology. 2025;113:356-373. doi:10.1007/s10971-024-06607-2
apa: Verma, M., Kumar, A., Thakur, V. K., Maurya, A., Kumar, S., Singh, S., &
Srivastav, S. K. (2025). Efficient and rapid sunlight-driven photocatalytic degradation
of methylene blue dye using multiferroic BiFeO3 nanoparticles. Journal of Sol-Gel
Science and Technology. Springer Nature. https://doi.org/10.1007/s10971-024-06607-2
chicago: Verma, Madhu, Ajay Kumar, Vijay Kumar Thakur, Akanksha Maurya, Sachin Kumar,
Saurabh Singh, and Simant Kumar Srivastav. “Efficient and Rapid Sunlight-Driven
Photocatalytic Degradation of Methylene Blue Dye Using Multiferroic BiFeO3 Nanoparticles.”
Journal of Sol-Gel Science and Technology. Springer Nature, 2025. https://doi.org/10.1007/s10971-024-06607-2.
ieee: M. Verma et al., “Efficient and rapid sunlight-driven photocatalytic
degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles,” Journal
of Sol-Gel Science and Technology, vol. 113. Springer Nature, pp. 356–373,
2025.
ista: Verma M, Kumar A, Thakur VK, Maurya A, Kumar S, Singh S, Srivastav SK. 2025.
Efficient and rapid sunlight-driven photocatalytic degradation of methylene blue
dye using multiferroic BiFeO3 nanoparticles. Journal of Sol-Gel Science and Technology.
113, 356–373.
mla: Verma, Madhu, et al. “Efficient and Rapid Sunlight-Driven Photocatalytic Degradation
of Methylene Blue Dye Using Multiferroic BiFeO3 Nanoparticles.” Journal of
Sol-Gel Science and Technology, vol. 113, Springer Nature, 2025, pp. 356–73,
doi:10.1007/s10971-024-06607-2.
short: M. Verma, A. Kumar, V.K. Thakur, A. Maurya, S. Kumar, S. Singh, S.K. Srivastav,
Journal of Sol-Gel Science and Technology 113 (2025) 356–373.
date_created: 2024-11-17T23:01:47Z
date_published: 2025-02-01T00:00:00Z
date_updated: 2025-05-19T14:00:43Z
day: '01'
department:
- _id: MaIb
doi: 10.1007/s10971-024-06607-2
external_id:
isi:
- '001348590700001'
intvolume: ' 113'
isi: 1
language:
- iso: eng
month: '02'
oa_version: None
page: 356-373
publication: Journal of Sol-Gel Science and Technology
publication_identifier:
eissn:
- 1573-4846
issn:
- 0928-0707
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Efficient and rapid sunlight-driven photocatalytic degradation of methylene
blue dye using multiferroic BiFeO3 nanoparticles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 113
year: '2025'
...
---
_id: '7294'
abstract:
- lang: eng
text: Mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres were prepared by
non-hydrolytic sol–gel from TiCl4, VOCl3, and iPr2O at 110 °C without any solvent
or additives. The samples were characterized by elemental analysis, X-ray diffraction,
Raman spectroscopy, scanning electron microscopy, nitrogen physisorption, and
impedance measurements. At low vanadium loadings, only TiO2 anatase was detected,
and V2O5 scherbinaite was also detected at high vanadium loadings. The texture
of the samples depended on the V loading, but all the samples appeared built of
primary nanoparticles (≈10–20 nm in size) that aggregate to form mesoporous micron-sized
spheres. The lithium insertion properties of these materials were evaluated by
galvanostatic measurements taken using coin-type cells, in view of their application
as electrode for rechargeable Li-ion batteries. The mesoporous TiO2 microspheres
showed good performances, with a specific reversible capacity of 145 and 128 mAh
g−1 at C/2 and C, respectively (C = 335.6 mA g−1), good coulombic efficiency,
and a moderate capacity fade (6 %) from the 2nd to the 20th cycle at C/20. Although
the addition of V effectively increased the electronic conductivity of the powders,
the specific reversible capacity and cycling performances of the TiO2–V2O5 samples
were only minimally improved for a 5 at% V loading and were lower at higher V
loading.
article_processing_charge: No
article_type: original
author:
- first_name: A. M.
full_name: Escamilla-Pérez, A. M.
last_name: Escamilla-Pérez
- first_name: N.
full_name: Louvain, N.
last_name: Louvain
- first_name: M.
full_name: Kaschowitz, M.
last_name: Kaschowitz
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: O.
full_name: Fontaine, O.
last_name: Fontaine
- first_name: B.
full_name: Boury, B.
last_name: Boury
- first_name: N.
full_name: Brun, N.
last_name: Brun
- first_name: P. H.
full_name: Mutin, P. H.
last_name: Mutin
citation:
ama: Escamilla-Pérez AM, Louvain N, Kaschowitz M, et al. Lithium insertion properties
of mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic
sol–gel. Journal of Sol-Gel Science and Technology. 2016;79(2):270-278.
doi:10.1007/s10971-016-4037-9
apa: Escamilla-Pérez, A. M., Louvain, N., Kaschowitz, M., Freunberger, S. A., Fontaine,
O., Boury, B., … Mutin, P. H. (2016). Lithium insertion properties of mesoporous
nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel.
Journal of Sol-Gel Science and Technology. Springer Nature. https://doi.org/10.1007/s10971-016-4037-9
chicago: Escamilla-Pérez, A. M., N. Louvain, M. Kaschowitz, Stefan Alexander Freunberger,
O. Fontaine, B. Boury, N. Brun, and P. H. Mutin. “Lithium Insertion Properties
of Mesoporous Nanocrystalline TiO2 and TiO2–V2O5 Microspheres Prepared by Non-Hydrolytic
Sol–Gel.” Journal of Sol-Gel Science and Technology. Springer Nature, 2016.
https://doi.org/10.1007/s10971-016-4037-9.
ieee: A. M. Escamilla-Pérez et al., “Lithium insertion properties of mesoporous
nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel,”
Journal of Sol-Gel Science and Technology, vol. 79, no. 2. Springer Nature,
pp. 270–278, 2016.
ista: Escamilla-Pérez AM, Louvain N, Kaschowitz M, Freunberger SA, Fontaine O, Boury
B, Brun N, Mutin PH. 2016. Lithium insertion properties of mesoporous nanocrystalline
TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel. Journal of
Sol-Gel Science and Technology. 79(2), 270–278.
mla: Escamilla-Pérez, A. M., et al. “Lithium Insertion Properties of Mesoporous
Nanocrystalline TiO2 and TiO2–V2O5 Microspheres Prepared by Non-Hydrolytic Sol–Gel.”
Journal of Sol-Gel Science and Technology, vol. 79, no. 2, Springer Nature,
2016, pp. 270–78, doi:10.1007/s10971-016-4037-9.
short: A.M. Escamilla-Pérez, N. Louvain, M. Kaschowitz, S.A. Freunberger, O. Fontaine,
B. Boury, N. Brun, P.H. Mutin, Journal of Sol-Gel Science and Technology 79 (2016)
270–278.
date_created: 2020-01-15T12:16:08Z
date_published: 2016-04-08T00:00:00Z
date_updated: 2021-01-12T08:12:49Z
day: '08'
doi: 10.1007/s10971-016-4037-9
extern: '1'
intvolume: ' 79'
issue: '2'
language:
- iso: eng
month: '04'
oa_version: None
page: 270-278
publication: Journal of Sol-Gel Science and Technology
publication_identifier:
issn:
- 0928-0707
- 1573-4846
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Lithium insertion properties of mesoporous nanocrystalline TiO2 and TiO2–V2O5
microspheres prepared by non-hydrolytic sol–gel
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 79
year: '2016'
...