Boosting arsenic removal with metastable Fe2+/Mn3+ redox process in MnFe2O4/rGO composites for high capacity and stability

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137652 - 137652

Published: Feb. 18, 2025

Language: Английский

Efficient Removal of As from Industrial Wastewater by Nanocomposite MnFe2O4@Fe-UiO-67

Toxics, Journal Year: 2025, Volume and Issue: 13(4), P. 295 - 295

Published: April 11, 2025

Arsenic is a highly toxic element, and excessive levels can affect human health. Composites possess larger specific surface area better adsorption performance than single-MOF materials. In this paper, simple novel nanocomposite (MnFe2O4@Fe-UiO-67) was synthesized by the one-pot method for removal of arsenic from industrial wastewater. The synthesis mechanism adsorbent were analyzed series characterizations. results showed that behavior MnFe2O4@Fe-UiO-67 consistent with pseudo-secondary kinetics Langmuir isotherm model, i.e., it monomolecular layer chemisorption. Characterization Fourier transform infrared (FT-IR) X-ray photoelectron spectroscopy (XPS) active site formed strong coordination bond (As-O bond) As ions to achieve efficient adsorption. At 298 K pH = 10, rate reach 98.43%, capacity 600.25 mg/g, which more most existing reported adsorbents. Through thermodynamic analysis, found spontaneous exothermic process. It exhibit excellent at room temperature without need additional energy consumption. This has great development prospects in treatment

Language: Английский

Efficient catalytic ozonation of ciprofloxacin by Fe2O3-CoFe2O4 with dual-active sites: Degradation mechanism and environmental application

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 117045 - 117045

Published: May 1, 2025

Language: Английский