Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths
Materials with high electron transfer performance remain a key focus in photocatalytic research, as they can effectively promote the separation of photogenerated carriers and enhance the utilization efficiency of photogenerated electrons. To enhance the effective utilization of photogenerated electr...
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MDPI AG
2025-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/30/6/1302 |
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| author | Liangjun Cai Hongxia Liu Xiaoxiao Yan |
| author_facet | Liangjun Cai Hongxia Liu Xiaoxiao Yan |
| author_sort | Liangjun Cai |
| collection | DOAJ |
| description | Materials with high electron transfer performance remain a key focus in photocatalytic research, as they can effectively promote the separation of photogenerated carriers and enhance the utilization efficiency of photogenerated electrons. To enhance the effective utilization of photogenerated electrons, the MSIG material was prepared by incorporating the iodine clusters and magnetic Fe<sub>3</sub>O<sub>4</sub> into the as-synthesized crumpled graphene oxide (CGO) to construct Möbius-like electronic transmission pathways. The introduction of magnetic groups optimized the spin orientation of electrons, facilitating directional electron transport and thereby enhancing the photocatalytic efficiency of the material. Experimental results reveal that, in visible light-driven hydrogen production reactions, the eosin Y (EY)-sensitized Pt-Fe<sub>3</sub>O<sub>4</sub>-MSIG catalyst exhibits outstanding catalytic performance, with a hydrogen production rate of 1.48 mL/h, which is 15 times higher than that of the Pt-Fe<sub>3</sub>O<sub>4</sub> catalyst. Photoelectrochemical analyses show a significant increase in the catalyst’s fluorescence lifetime, attributed to the Möbius strip-like electron transport channels within the material. Theoretical calculations further support this by demonstrating that the bandgap widening of the CGO reduces the recombination probability of photogenerated carriers, thereby improving their average lifetime. This study offers a novel approach for the design of visible-light-driven photocatalytic materials. |
| format | Article |
| id | doaj-art-74b34e55dcf246a09232e99bfe2f7913 |
| institution | OA Journals |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-74b34e55dcf246a09232e99bfe2f79132025-08-20T01:48:48ZengMDPI AGMolecules1420-30492025-03-01306130210.3390/molecules30061302Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic PathsLiangjun Cai0Hongxia Liu1Xiaoxiao Yan2Jiangxi Province Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaJiangxi Province Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaKey Laboratory for Green Chemistry of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, ChinaMaterials with high electron transfer performance remain a key focus in photocatalytic research, as they can effectively promote the separation of photogenerated carriers and enhance the utilization efficiency of photogenerated electrons. To enhance the effective utilization of photogenerated electrons, the MSIG material was prepared by incorporating the iodine clusters and magnetic Fe<sub>3</sub>O<sub>4</sub> into the as-synthesized crumpled graphene oxide (CGO) to construct Möbius-like electronic transmission pathways. The introduction of magnetic groups optimized the spin orientation of electrons, facilitating directional electron transport and thereby enhancing the photocatalytic efficiency of the material. Experimental results reveal that, in visible light-driven hydrogen production reactions, the eosin Y (EY)-sensitized Pt-Fe<sub>3</sub>O<sub>4</sub>-MSIG catalyst exhibits outstanding catalytic performance, with a hydrogen production rate of 1.48 mL/h, which is 15 times higher than that of the Pt-Fe<sub>3</sub>O<sub>4</sub> catalyst. Photoelectrochemical analyses show a significant increase in the catalyst’s fluorescence lifetime, attributed to the Möbius strip-like electron transport channels within the material. Theoretical calculations further support this by demonstrating that the bandgap widening of the CGO reduces the recombination probability of photogenerated carriers, thereby improving their average lifetime. This study offers a novel approach for the design of visible-light-driven photocatalytic materials.https://www.mdpi.com/1420-3049/30/6/1302crumpled graphene oxidespin polarizationheavy-atom effect of group Iphotocatalytic hydrogen productionMöbius-like cyclic electron transport pathways |
| spellingShingle | Liangjun Cai Hongxia Liu Xiaoxiao Yan Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths Molecules crumpled graphene oxide spin polarization heavy-atom effect of group I photocatalytic hydrogen production Möbius-like cyclic electron transport pathways |
| title | Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths |
| title_full | Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths |
| title_fullStr | Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths |
| title_full_unstemmed | Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths |
| title_short | Boosting Visible-Light-Driven Hydrogen Evolution Enabled by Iodine-Linked Magnetically Curved Graphene with Mobius-like Electronic Paths |
| title_sort | boosting visible light driven hydrogen evolution enabled by iodine linked magnetically curved graphene with mobius like electronic paths |
| topic | crumpled graphene oxide spin polarization heavy-atom effect of group I photocatalytic hydrogen production Möbius-like cyclic electron transport pathways |
| url | https://www.mdpi.com/1420-3049/30/6/1302 |
| work_keys_str_mv | AT liangjuncai boostingvisiblelightdrivenhydrogenevolutionenabledbyiodinelinkedmagneticallycurvedgraphenewithmobiuslikeelectronicpaths AT hongxialiu boostingvisiblelightdrivenhydrogenevolutionenabledbyiodinelinkedmagneticallycurvedgraphenewithmobiuslikeelectronicpaths AT xiaoxiaoyan boostingvisiblelightdrivenhydrogenevolutionenabledbyiodinelinkedmagneticallycurvedgraphenewithmobiuslikeelectronicpaths |