Effective Combination of MOF and MoS2 Layers: A Novel Composite Material Capable of Rapidly Degrading Dyes

Water, Год журнала: 2025, Номер 17(7), С. 980 - 980

Опубликована: Март 27, 2025

This study successfully prepared MIL-101(Fe)@MoS2 composite photocatalysts via hydrothermal methods to address the efficient removal of refractory organic dyes in dye wastewater. Characterization using X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS) confirmed that molybdenum disulfide (MoS2) was uniformly loaded onto surface MIL-101(Fe), forming a heterojunction significantly enhanced light absorption capacity charge separation efficiency. In visible-light-driven photo-Fenton system, this material exhibited excellent degradation performance for Congo red (CR). At an initial CR concentration 50 mg/L, catalyst dosage 0.2 g/L, 4 mL added H2O2, pH 7, completely degraded within 30 min, with total carbon (TOC) reaching 72.5%. The maintained high efficiency (>90%) across range 3–9, overcoming traditional Fenton system’s dependency on acidic media. Radical-trapping experiments indicated superoxide radicals (·O2−) photogenerated holes (·h+) were primary active species responsible degradation, revealing synergistic catalytic mechanism at interface. Recyclability tests showed retained 90.8% after five cycles, photoelectron (XPS) analysis demonstrated stable binding Fe Mo, preventing secondary pollution. provides scientific basis developing efficient, stable, wide-pH adaptable systems, contributing advancement green water treatment technologies.

Язык: Английский

Ultrafiltration membrane based on PES/CeO2-MoS2 heterostructured nanocomposites for enhanced oil-in-water emulsion separation and antifouling

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132921 - 132921

Опубликована: Апрель 1, 2025

Язык: Английский