Characterization of eosin red and hibiscus sabdariffa-based dye-sensitized solar cells

Salawu, Mufutau A.; Ayobami, Abeeb Abolaji; Adebisi, Aderonke; Ezike, Sabastine C.; Saheed, Yusuf Olanrewaju; Alabi, Aderemi Babatunde

doi:10.1016/j.optmat.2022.112177

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…1 0 5), (2 1 1), (2 0 4 (1 1 6), (2 2 0), and (2 1 5) planes, respectively. The obtained values coincided well wit the anatase phase standard JCPDS card number: 89-4921 and their tetragonal structur [31,32]. The anatase phase stability is very high compared to other phases of titanium di oxide nanoparticles, which can accelerate the electron accumulations on the surfaces.…”

Section: Xrd Analysissupporting

confidence: 78%

“…The pure titanium dioxide nanoparticle obtained diffractive patterns at 2θ = 25.44ᶿ, 38ᶿ, 47.94ᶿ, 54.13ᶿ, 54.81ᶿ, 62.75ᶿ, 69.08ᶿ, 70.8ᶿ and 74.84ᶿ values, which are associated with (1 0 1), (0 0 4), (2 0 0), (1 0 5), (2 1 1), (2 0 4 (1 1 6), (2 2 0), and (2 1 5) planes, respectively. The obtained values coincided well wit the anatase phase standard JCPDS card number: 89-4921 and their tetragonal structur[31,32]. The anatase phase stability is very high compared to other phases of titanium di oxide nanoparticles, which can accelerate the electron accumulations on the surfaces.…”

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confidence: 78%

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Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

et al. 2022

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Activated carbon doping TiO2 nanoparticles were synthesised by zapota leaf extract using the co-precipitation method. The bio-constituents of plant compounds were used in the reactions of stabilization and reductions. The carbon loading on the TiO2 nanoparticles was characterised by XRD, FTIR, UV-DRS, SEM with EDX, and TEM analysis. The loading of activated carbon onto the TiO2 nanoparticles decreased the crystallite size and optical bandgap, and their doping improved the surface structure of AC/TiO2 nanoparticles. Mesoporous/microporous instability was remodified from the activated carbon, which was visualised using SEM and TEM analysis, respectively. The photocatalytic dye degradation of Rh-B dye was degraded in TiO2 and AC/TiO2 nanoparticles under visible light irradiation. The degradation efficiencies of TiO2 and AC/TiO2 nanoparticles were 73% and 91%, respectively. The bacterial abilities of TiO2 and AC/TiO2 nanoparticles were examined by E. coli and S. aureus. The water reclamation efficiency and bactericidal effect of TiO2 and AC/TiO2 nanoparticles were examined via catalytic dye degradation and bacterial efficiency of activated carbon-doped titanium dioxide nanoparticles.

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Section: Xrd Analysissupporting

confidence: 78%

supporting

confidence: 78%

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

et al. 2022

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“…Equations 1, 2, and 3 [25] were employed to determine each sample's linear attenuation coefficient, half-value layer, and relaxation length. The radiation shielding composites' x-ray photon absorptions were determined using equation 4 from transmission data by Beer's Lambert law, as published in [39][40][41][42][43][44][45].…”

Section: Radiographic Characterizations Of the Compositesmentioning

confidence: 99%

Radiation Shielding Properties of Synthetic Ca-Al2O3 Polymer Based Composites

A. Salawu,

K. Ayinla,

C. Ezike

et al. 2023

JSMPM

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The optical and radiation shielding capabilities of Ca-Al2O3polymer-based composites were explored by combining synthesized aluminum oxide (Al2O3) with calcium (Ca) obtained from different shells. The obtained powders were dispersed into polymeric materials in a ratio of 2:1 via the melt-mixing process and then cast in a 10cm x10cm mold with a thickness of 10 mm and allowed to set at ambient temperature. The X-ray transmission through the composite samples was investigated using a well-collimated point source, and a linear attenuation coefficient was estimated. X-ray fluorescence results revealed calcium contents of 32 %, 37 %, and 34 % for snail shells, seashells, and periwinkle shells, respectively. The X-ray diffraction result confirmed the Al2O3polymorphs at approximately 32oand 57oand the aluminum phase at 46o. The X-ray photon transmittance of the composites is quite low at 40 keV to 60 keV and comparatively higher at 100 keV to 200 keV. For Ca-Al2O3polymer-based composites with calcium contents sourced from seashells, periwinkle shells, and snail shells, the maximum linear attenuation coefficients were 1.0 cm-1,0.79 cm-1, and 0.65 cm-1, respectively. The half-value layer (HVL) and relaxation length of all the samples under investigation decreased abruptly at 40 keV and 60 keV and grew linearly as the energy increased from 100 keV to 200 keV. A Ca-Al2O3polymer-based composite with calcium contents sourced from seashells was found to have higher x-ray attenuating characteristics than other composites.

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Photovoltaics: background and novel carbon-based materials for third-generation solar cells

Muchuweni,

Mombeshora,

Martincigh

et al. 2024

Handbook of Emerging Materials for Sustainable Energy

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Characterization of eosin red and hibiscus sabdariffa-based dye-sensitized solar cells

Cited by 7 publications

References 24 publications

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

Activated Carbon-Loaded Titanium Dioxide Nanoparticles and Their Photocatalytic and Antibacterial Investigations

Radiation Shielding Properties of Synthetic Ca-Al2O3 Polymer Based Composites

Photovoltaics: background and novel carbon-based materials for third-generation solar cells

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