Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts
<p dir="ltr">This study investigates the potential of photocatalytic processes for the selective conversion of methane into valuable liquid fuels, particularly methanol, addressing the need for efficient, alternative, and clean energy carriers and fuels. Two pristine photocatalysts,...
محفوظ في:
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| مؤلفون آخرون: | , , , |
| منشور في: |
2025
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إضافة وسم
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| _version_ | 1864513539599761408 |
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| author | Amira Chebbi (19756983) |
| author2 | Alessandro Sinopoli (4318555) Ahmed Abotaleb (9596108) Muhammad Anwar (4014383) Yusuf Bicer (14158977) |
| author2_role | author author author author |
| author_facet | Amira Chebbi (19756983) Alessandro Sinopoli (4318555) Ahmed Abotaleb (9596108) Muhammad Anwar (4014383) Yusuf Bicer (14158977) |
| author_role | author |
| dc.creator.none.fl_str_mv | Amira Chebbi (19756983) Alessandro Sinopoli (4318555) Ahmed Abotaleb (9596108) Muhammad Anwar (4014383) Yusuf Bicer (14158977) |
| dc.date.none.fl_str_mv | 2025-09-16T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.jphotochem.2025.116765 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Enhancing_photocatalytic_partial_oxidation_of_methane_to_methanol_Experimental_investigation_of_2D_metal_oxide_composite_catalysts/30136567 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Chemical sciences Physical chemistry Engineering Environmental engineering Materials engineering Nanotechnology Methane photo-conversion Green energy carrier Tungsten oxide Graphitic carbon nitride Solar energy |
| dc.title.none.fl_str_mv | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">This study investigates the potential of photocatalytic processes for the selective conversion of methane into valuable liquid fuels, particularly methanol, addressing the need for efficient, alternative, and clean energy carriers and fuels. Two pristine photocatalysts, W₁₈O₄₉ and g-C₃N₄, along with their respective composite W₁₈O₄₉/g-C₃N₄, were synthesized and analyzed using SEM, TEM, XRD, XPS, BET, and UV-VIS spectroscopy techniques. Additionally, transient photocurrent measurements and electrochemical impedance spectroscopy (EIS) were conducted to elucidate charge transfer mechanisms and interfacial properties of the photocatalysts. The photocatalytic performance was evaluated under both visible and UV light conditions. Among the three catalysts tested, the composite W₁₈O₄₉/g-C₃N₄ demonstrated remarkable catalytic activity of 62.3 μmol g−1 h−1 under visible light, nearly 4-fold higher than pristine W₁₈O₄₉ and 5-fold higher than g-C₃N₄. The enhanced performance is attributed to the forming of a Z-scheme heterojunction system, as evidenced by XPS analysis showing increased oxygen vacancy density and strong electronic coupling between the components, further confirmed by electrochemical characterization revealing improved charge separation efficiency. This composite system offers a sustainable and cost-effective alternative to noble metal-based catalysts for photocatalytic methane conversion, demonstrating significant potential for clean energy production and greenhouse gas mitigation.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Photochemistry and Photobiology A: Chemistry<br>License: <a href="https://creativecommons.org/licenses/by/4.0/deed.en" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jphotochem.2025.116765" target="_blank">https://dx.doi.org/10.1016/j.jphotochem.2025.116765</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_cb5677dbff4faf1035870149413971a1 |
| identifier_str_mv | 10.1016/j.jphotochem.2025.116765 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30136567 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalystsAmira Chebbi (19756983)Alessandro Sinopoli (4318555)Ahmed Abotaleb (9596108)Muhammad Anwar (4014383)Yusuf Bicer (14158977)Chemical sciencesPhysical chemistryEngineeringEnvironmental engineeringMaterials engineeringNanotechnologyMethane photo-conversionGreen energy carrierTungsten oxideGraphitic carbon nitrideSolar energy<p dir="ltr">This study investigates the potential of photocatalytic processes for the selective conversion of methane into valuable liquid fuels, particularly methanol, addressing the need for efficient, alternative, and clean energy carriers and fuels. Two pristine photocatalysts, W₁₈O₄₉ and g-C₃N₄, along with their respective composite W₁₈O₄₉/g-C₃N₄, were synthesized and analyzed using SEM, TEM, XRD, XPS, BET, and UV-VIS spectroscopy techniques. Additionally, transient photocurrent measurements and electrochemical impedance spectroscopy (EIS) were conducted to elucidate charge transfer mechanisms and interfacial properties of the photocatalysts. The photocatalytic performance was evaluated under both visible and UV light conditions. Among the three catalysts tested, the composite W₁₈O₄₉/g-C₃N₄ demonstrated remarkable catalytic activity of 62.3 μmol g−1 h−1 under visible light, nearly 4-fold higher than pristine W₁₈O₄₉ and 5-fold higher than g-C₃N₄. The enhanced performance is attributed to the forming of a Z-scheme heterojunction system, as evidenced by XPS analysis showing increased oxygen vacancy density and strong electronic coupling between the components, further confirmed by electrochemical characterization revealing improved charge separation efficiency. This composite system offers a sustainable and cost-effective alternative to noble metal-based catalysts for photocatalytic methane conversion, demonstrating significant potential for clean energy production and greenhouse gas mitigation.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Photochemistry and Photobiology A: Chemistry<br>License: <a href="https://creativecommons.org/licenses/by/4.0/deed.en" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jphotochem.2025.116765" target="_blank">https://dx.doi.org/10.1016/j.jphotochem.2025.116765</a></p>2025-09-16T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.jphotochem.2025.116765https://figshare.com/articles/journal_contribution/Enhancing_photocatalytic_partial_oxidation_of_methane_to_methanol_Experimental_investigation_of_2D_metal_oxide_composite_catalysts/30136567CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/301365672025-09-16T09:00:00Z |
| spellingShingle | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts Amira Chebbi (19756983) Chemical sciences Physical chemistry Engineering Environmental engineering Materials engineering Nanotechnology Methane photo-conversion Green energy carrier Tungsten oxide Graphitic carbon nitride Solar energy |
| status_str | publishedVersion |
| title | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| title_full | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| title_fullStr | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| title_full_unstemmed | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| title_short | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| title_sort | Enhancing photocatalytic partial oxidation of methane to methanol: Experimental investigation of 2D/metal oxide composite catalysts |
| topic | Chemical sciences Physical chemistry Engineering Environmental engineering Materials engineering Nanotechnology Methane photo-conversion Green energy carrier Tungsten oxide Graphitic carbon nitride Solar energy |