This work investigates the photocatalytic activity of new ferroelectric material with formula (Li0.95Cu0.15)Ta0.76Nb0.19O3 (LT76) in a single chamber microbial fuel cell (MFC) and compares its performance with the similar photocatalyst (Li0.95Cu0.15)Ta0.57Nb0.38O3 (LT57). The photocatalysts LT76 and LT57 were synthesized by ceramic route under the same conditions, with the same starting materials. The ratio Ta/Nb was fixed at 4.0 and 1.5 for LT76 and LT57, respectively. These phases were characterized by different techniques including X-ray diffraction (XRD), transmission electronic microscopy (TEM), particle size distribution (PSD), differential scanning calorimetry (DSC), and ultraviolet (UV)–visible (Vis). The new photocatalyst LT76 presents specific surface area of 0.791 m2/g and Curie temperature of 1197 °C. The photocatalytic efficiency of this material is assessed in terms of wastewater treatment and electricity generation by power density and removal rate of chemical oxygen demand (COD) in the presence of a light source. The values of maximum power density and COD removal were 19.77 mW/m3 and 93%, respectively, for LT76.
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Characterization of New Nonstoichiometric Ferroelectric (Li0.95Cu0.15)Ta0.76Nb0.19O3 and Comparative Study With (Li0.95Cu0.15)Ta0.57Nb0.38O3 as Photocatalysts in Microbial Fuel Cells
S. Louki,
S. Louki
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials,
Water and Environment,
Environmental Materials Team, ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: sami.louki@um5s.net.ma
Materials, Nanomaterials,
Water and Environment,
Environmental Materials Team, ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: sami.louki@um5s.net.ma
Search for other works by this author on:
N. Touach,
N. Touach
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: noureddine.touach@um5s.net.ma
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: noureddine.touach@um5s.net.ma
Search for other works by this author on:
A. Benzaouak,
A. Benzaouak
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
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V. M. Ortiz-Martínez,
V. M. Ortiz-Martínez
Department of Chemical and Environmental Engineering,
Technical University of Cartagena,
Murcia 30202, Spain
e-mail: victor.ortiz@upct.es
Technical University of Cartagena,
Campus Muralla Del Mar
,Murcia 30202, Spain
e-mail: victor.ortiz@upct.es
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M. J. Salar-García,
M. J. Salar-García
Department of Chemical and
Environmental Engineering,
Technical University of Cartagena,
Murcia 30202, Spain
Environmental Engineering,
Technical University of Cartagena,
Campus Muralla Del Mar
,Murcia 30202, Spain
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F. J. Hernández-Fernández,
F. J. Hernández-Fernández
Chemical Engineering Department,
University of Murcia,
Campus de Espinardo,
Murcia E-30071, Spain
University of Murcia,
Campus de Espinardo,
Murcia E-30071, Spain
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A. P. de los Ríos,
A. P. de los Ríos
Chemical Engineering Department,
University of Murcia,
Murcia E-30071, Spain
University of Murcia,
Campus de Espinardo
,Murcia E-30071, Spain
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M. El Mahi,
M. El Mahi
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
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E. M. Lotfi
E. M. Lotfi
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: lotfi58@yahoo.fr
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: lotfi58@yahoo.fr
Search for other works by this author on:
S. Louki
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials,
Water and Environment,
Environmental Materials Team, ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: sami.louki@um5s.net.ma
Materials, Nanomaterials,
Water and Environment,
Environmental Materials Team, ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: sami.louki@um5s.net.ma
N. Touach
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: noureddine.touach@um5s.net.ma
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: noureddine.touach@um5s.net.ma
A. Benzaouak
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
V. M. Ortiz-Martínez
Department of Chemical and Environmental Engineering,
Technical University of Cartagena,
Murcia 30202, Spain
e-mail: victor.ortiz@upct.es
Technical University of Cartagena,
Campus Muralla Del Mar
,Murcia 30202, Spain
e-mail: victor.ortiz@upct.es
M. J. Salar-García
Department of Chemical and
Environmental Engineering,
Technical University of Cartagena,
Murcia 30202, Spain
Environmental Engineering,
Technical University of Cartagena,
Campus Muralla Del Mar
,Murcia 30202, Spain
F. J. Hernández-Fernández
Chemical Engineering Department,
University of Murcia,
Campus de Espinardo,
Murcia E-30071, Spain
University of Murcia,
Campus de Espinardo,
Murcia E-30071, Spain
A. P. de los Ríos
Chemical Engineering Department,
University of Murcia,
Murcia E-30071, Spain
University of Murcia,
Campus de Espinardo
,Murcia E-30071, Spain
M. El Mahi
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
E. M. Lotfi
Laboratory of Spectroscopy, Molecular Modeling,
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: lotfi58@yahoo.fr
Materials, Nanomaterials, Water and Environment,
Environmental Materials Team,
ENSET,
Mohammed V University in Rabat,
Rabat 10100, Morocco
e-mail: lotfi58@yahoo.fr
1Corresponding authors.
Manuscript received September 13, 2018; final manuscript received November 4, 2018; published online December 12, 2018. Assoc. Editor: Nianqiang Wu.
J. Electrochem. En. Conv. Stor. May 2019, 16(2): 021009 (7 pages)
Published Online: December 12, 2018
Article history
Received:
September 13, 2018
Revised:
November 4, 2018
Citation
Louki, S., Touach, N., Benzaouak, A., Ortiz-Martínez, V. M., Salar-García, M. J., Hernández-Fernández, F. J., de los Ríos, A. P., El Mahi, M., and Lotfi, E. M. (December 12, 2018). "Characterization of New Nonstoichiometric Ferroelectric (Li0.95Cu0.15)Ta0.76Nb0.19O3 and Comparative Study With (Li0.95Cu0.15)Ta0.57Nb0.38O3 as Photocatalysts in Microbial Fuel Cells." ASME. J. Electrochem. En. Conv. Stor. May 2019; 16(2): 021009. https://doi.org/10.1115/1.4041982
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