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Updated: Apr 13, 2026

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
Published on: June 21, 2015
Zinc-cerium layered double hydroxide for uranium removal from contaminated water: Mechanistic insights and
Zahid Husain Momin1, Lakshmi Prasanna Lingamdinne2, Yoon-Young Chang2
1Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, South Korea; Department of Electronic Materials Engineering, Kwangwoon University, Seoul, 01897, South Korea.
Abstract:
This study investigates zinc-cerium layered double hydroxide (ZnCe-LDH) for its potentiality in adsorbing uranium [U(VI)] ions from water. ZnCe-LDH was fabricated using the urea hydrolysis method and characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FT-IR) to confirm its structural, chemical properties and suitability towards of U(VI) adsorption. Laboratory-scale adsorption studies were performed to assess the rate of uptake, equilibrium characteristics, and thermodynamic responses of the system. The material exhibited a maximum adsorption capacity (qmax) of 401.96 mg/g , with the equilibrium data aligning well with the Freundlich model. Kinetic studies supported a pseudo-first-order model (PFO). The U(VI) removal is attributed in order physisorption via electrostatic interaction (49.97%) > ion exchange (27.9%) and intra-particle diffusion (18.68%), with negligible contribution from the surface complexation, and π-interaction as the adsorption mechanism. The composite exhibited decent reusability, retaining up to 70% adsorption efficiency after five consecutive cycles at low cost. A groundwater study revealed that ZnCe-LDH effectively reduced U(VI) levels to below USEPA limits, even when multiple coexisting dissolved species. These findings highlighted ZnCe-LDH as a promising material for sustainable, cost-effective and high-performance water treatment applications.
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