A Novel Ternary Composite of GO/NiCoFe2O4/MIL‐53 for Enhanced Copper Removal from Wastewater
Year: 2025
Type: article
Abstract: Excess copper levels have been associated with Alzheimer's disease, aging, mental illness, and DNA damage. As a result, the copper ions’ removal from water resources has become a major challenge. In this study, a novel ternary GO/NiCoFe2O4/MIL‐53 composite was synthesized for the first time based upon a combination of GO, NiCoFe2O4, and MIL‐53(Al) MOF, which effectively removed Cu2+ ions from aqueous solutions. The characterization was utilizing XRD, SEM/EDX, TEM, FT‐IR, TGA, XPS, and BET analysis. XRD and FT‐IR confirmed the formation of the GO/NiCoFe2O4/MIL‐53 composite and Cu2+ adsorption. SEM images showed that MIL‐53‐MOF crystals have a rhombohedral crystal structure, while the NiCoFe2O4 particles have spindle‐like crystals organized in flower‐like shapes. The prepared GO/NiCoFe2O4/MIL‐53 composite had a high specific surface area of 1235.58 m2 g−1 and exhibited characteristics of a mesoporous structure. The GO/NiCoFe2O4/MIL‐53 composite showed high Cu2+ adsorption capacity of 90.09 mg g−1 and reserved high removal ability even after five cycles. Different experimental factors like pH, initial‐concentration, temperature, contact‐time, ionic‐strength, composite dosage, and coexisting‐ions, were explored. The results showed that Cu2+ removal was fast and effective, with an efficiency exceeding 80 % within 30 minutes. The process of Cu2+ adsorption on the composite was exothermic, spontaneous, and followed the pseudo‐second‐order kinetics and Langmuir isothermal model. The Cu2+ recovery from water samples ranged between 86.5 %–94.3 %, indicating the excellent efficiency of the GO/NiCoFe2O4/MIL‐53 composite for copper removal from real samples. Furthermore, the GO/NiCoFe2O4/MIL‐53 composite established the best performance compared to other works for copper removal from wastewater.
Authors: Eman A. Elmenofy, Omnia I. Ali, A. T. Kandil, Sheta M. Sheta, Said M. El‐sheikh
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4408386305