Synthesis of MIL-100(Fe) derived α-Fe2O3 for fabrication of α-Fe2O3/ZIF-8 as photocatalyst of malachite green degradation
Development of highly efficient photocatalysts for the degradation of persistent and recalcitrant malachite green (MG) dye remains a significant challenge. In this study, mesoporous α-Fe 2 O 3 was synthesized by calcining MIL-100(Fe) and subsequently encapsulated within ZIF-8 to form α-Fe 2 O 3 /ZIF-8 (FZF) composites. The resulting heterostructures exhibited a high surface area (566 m 2 /g), a narrow band gap (∼2.0 eV), improved charge separation, and strong adsorption capacity. Among the samples, FZF-25 achieved 99.35% removal of 150 ppm MG within 80 min under UV irradiation and maintained excellent stability over four cycles. These findings highlight a promising MOF-derived α-Fe 2 O 3 /ZIF-8 approach that enables synergistic adsorption–photocatalysis process. • Mesoporous α-Fe 2 O 3 was obtained from calcination of MIL-100(Fe). • The α-Fe 2 O 3 was encapsulated within ZIF-8 to form α-Fe 2 O 3 /ZIF-8 (FZF) composites • The α-Fe 2 O 3 /ZIF-8 (FZF) composites exhibited a high surface area, a narrow band gap. • FZF-25 achieved 99.35% removal of 150 ppm MG within 80 min under UV irradiation. • FZF-25 showed an excellent photo-stability until four photocatalytic cycles
Authors
- Nuhaa Faaizatunnisa (ORCID: https://orcid.org/0000-0002-8705-8306)
- Uripto Trisno Santoso (ORCID: https://orcid.org/0000-0003-1832-2596)
- Retno Agnestisia (ORCID: https://orcid.org/0000-0002-4340-0253)
- Karelius Karelius
- Rifdah Adya Salsabila
- Marvin Horale Pasaribu
- Ratna Ediati
- Eko Santoso
Institutions
- University of Palangka Raya (ID)
- Sepuluh Nopember Institute of Technology (ID)
- Lambung Mangkurat University (ID)
Publication Details
- Journal
- Case Studies in Chemical and Environmental Engineering
- Published
- 2025-12-23
- DOI
- https://doi.org/10.1016/j.cscee.2025.101320
- Primary Topic
- Iron oxide chemistry and applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00