Upcycling of Ca-rich residues after Fe recovery from steel slag into photocatalyst composites for H2 evolution and carbon negative

• Project/Area Number: 23K17064
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 64030:Environmental materials and recycle technology-related
• Research Institution: Kyushu University
• Principal Investigator: CHUAICHAM CHITIPHON 九州大学, 工学研究院, 特任助教 (60875772)
• Project Period (FY): 2023-04-01 – 2025-03-31
• Project Status: Granted (Fiscal Year 2023)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2024: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2023: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: Photocatalyst / Hydrogen evolution / carbon negative / Carbon nitride / Hydroxyapatite

Outline of Research at the Start

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.