| 研究課題/領域番号 |
23K17064
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分64030:環境材料およびリサイクル技術関連
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| 研究機関 | 九州大学 |
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研究代表者 |
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| 研究期間 (年度) |
2023-04-01 – 2025-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
4,680千円 (直接経費: 3,600千円、間接経費: 1,080千円)
2024年度: 1,690千円 (直接経費: 1,300千円、間接経費: 390千円)
2023年度: 2,990千円 (直接経費: 2,300千円、間接経費: 690千円)
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| キーワード | Calcium oxalate / Fe-doped hydroxyapatite / Photocatalyst / Hydrogen evolution / carbon negative / Carbon nitride / Hydroxyapatite |
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| 研究開始時の研究の概要 |
Upcycling of secondary Ca oxalate residue from converter slag to fabricate Fe-doped hydroxyapatite (Fe-HAp). Further, Fe-HAp will be combined with C3N4 to improve optical properties and applied to H2 evolution and CO2 reduction supporting sustainable development of alternative energy and chemicals.
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| 研究実績の概要 |
Currently, iron oxalate dihydrate (abbreviated as FOD-ore) was synthesized from iron ore using a process involving oxalic acid for iron extraction, followed by photo-reduction. Various analytical techniques were employed to characterize the physicochemical properties of the FOD-ore sample. The FOD-ore was tested for its ability to catalyze the degradation of rhodamine B (RhB), a representative organic pollutant found in wastewater. The results revealed that the FOD-ore could degrade over 85% of RhB faster than that achieved with FOD alone. Additionally, the remaining calcium oxalate was used as a calcium source to produce Fe-doped hydroxyapatite as a photocatalyst. The obtained Fe-doped hydroxyapatite was characterized by several methods and will be used for photocatalytic H2 evolution.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
This research project is advancing according to our strategy, which involves extracting calcium oxalate from slag and utilizing it as a calcium source to fabricate photocatalysts. Furthermore, we have employed these newly obtained photocatalysts to initiate the degradation of organic pollutants, marking the initial phase of assessing their photocatalytic effectiveness.
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| 今後の研究の推進方策 |
Our next step involves creating a composite material by combining Fe-doped hydroxyapatite derived from slag with C3N4, which will then be utilized for testing its photocatalytic efficiency in hydrogen (H2) evolution. This experimentation aims to assess the performance of the synthesized samples in catalyzing the generation of hydrogen through photocatalysis. Additionally, we will explore various conditions and parameters during the composite fabrication process and H2 evolution testing to identify optimal conditions for maximizing the performance of the resulting sample.
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