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All Journal African Multidisciplinary Journal of Sciences and Artificial Intelligence Open Access DRIVERset
Kamba, E. A.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Environmental Science Materials Science & Nanotechnology

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Synthesis of SiO2/TiO2 Core – Shell Nanofibres for Photodegradation of Hexamethyldisiloxane Kamba, E. A.; Daniel, E. B Attah
African Multidisciplinary Journal of Sciences and Artificial Intelligence Vol 1 No 1 (2024): African Multidisciplinary Journal of Sciences and Artificial Intelligence
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/amjsai.v1i1.3370

Abstract

As the world faces the increasing energy demands of its growing population a number of novel and renewable energy sources are being investigated as replacement agents for conventional fossil fuel species. In this study SiO2/TiO2 core–shell nanofibres were synthesised and characterised using facile experimental procedures. The synthesized catalyst was utilized for photodecomposition of hexamethyldisiloxane (HMS) in biogas. The results obtained revealed that by the decomposition properties of the created material it was possible to establish a photocatalyst equipped with properties capable of decomposing siloxanes in biogas with high efficiency.
Synthesis of SiO2/TiO2 Core – Shell Nanofibres for Photodegradation of Hexamethyldisiloxane Kamba, E. A.; Daniel, E. B Attah
African Multidisciplinary Journal of Sciences and Artificial Intelligence Vol 1 No 1 (2024): African Multidisciplinary Journal of Sciences and Artificial Intelligence
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/amjsai.v1i1.3370

Abstract

As the world faces the increasing energy demands of its growing population a number of novel and renewable energy sources are being investigated as replacement agents for conventional fossil fuel species. In this study SiO2/TiO2 core–shell nanofibres were synthesised and characterised using facile experimental procedures. The synthesized catalyst was utilized for photodecomposition of hexamethyldisiloxane (HMS) in biogas. The results obtained revealed that by the decomposition properties of the created material it was possible to establish a photocatalyst equipped with properties capable of decomposing siloxanes in biogas with high efficiency.
Inverted Bilayered Opal Photoanodes for Dye Sensitised Solar Cells Kamba, E. A.; Yerima, E. A.; AttahDaniel, E. B.
African Multidisciplinary Journal of Sciences and Artificial Intelligence Vol 3 No 3 (2026): African Multidisciplinary Journal of Sciences and Artificial Intelligence
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/amjsai.v3i3.11642

Abstract

Developing efficient photoanode materials remains a major challenge in improving the performance of dye-sensitized solar cells (DSSCs). This study aims to fabricate and evaluate a bilayer photoanode comprising potassium titanate (K₂Ti₄O₉) nanobelts coupled with a zinc oxide (ZnO) inverse-opal structure and to investigate the effects of electrolyte cation identity and concentration on DSSC performance. K₂Ti₄O₉ nanobelts were synthesized through a solid-state reaction between potassium carbonate (K₂CO₃) and titanium dioxide (TiO₂) and subsequently integrated with the ZnO inverse-opal layer. Photocurrent–voltage measurements were conducted using a two-electrode DSSC configuration containing an I₃⁻/I⁻ redox electrolyte. The devices were illuminated using a 300 W xenon arc lamp equipped with an AM 1.5G filter at an intensity of 100 mW cm⁻². The findings show that the ZnO inverse-opal/K₂Ti₄O₉ bilayer system achieved a photoelectric conversion efficiency of 1.19%, exceeding the 1.04% efficiency obtained using the single K₂Ti₄O₉ system. This improvement indicates that the ZnO inverse-opal layer contributes substantially to device performance by functioning as a photonic-crystal underlayer. The study demonstrates the potential of integrating ZnO inverse-opal structures with K₂Ti₄O₉ nanobelts to enhance DSSC photoanode performance and provides a basis for developing bilayered photonic architectures for solar-energy conversion.
Co-Authors AttahDaniel, E. B. Daniel, E. B Attah Yerima, E. A.