Novel phase-controlled Al2.66O3.99/iron oxide nanocomposites for rapid Cu(II) removal from acidic water.
- 1Faculty of Physics, Semnan University, PO Box: 35195-363, Semnan, Iran.
- 2Department of Medical Biotechnology, College of Biotechnology, Al Qasim Green University, Babylon, 51013, Iraq.
- 3Faculty of Physics, Semnan University, PO Box: 35195-363, Semnan, Iran. [email protected].
Abstract
In this study, alumina/iron oxide nanocomposites are synthesized via a simple, cost-effective co-precipitation method and investigated for the removal of copper ions from acidic aqueous media. Five samples with varying iron oxide phase contents are prepared by varying the precursor molar ratios. Structural analysis confirms the coexistence of Al₂.₆₆O₃.₉₉ and iron oxide phases, while Rietveld refinement reveals that the iron oxide phase fraction increases from 0.2% to 67.2% across the synthesized samples. The nanocomposites are characterized in detail using a range of analytical methods, including structural, morphological, optical, magnetic, and elemental analyses. Magnetic measurements indicate soft-magnetic behavior, with an enhanced response observed in the sample with the highest iron oxide content. The experimental results demonstrate rapid uptake of Cu(II), with significant removal occurring within the first few minutes and removal efficiencies exceeding 90% after 90 min for most samples. Nonlinear kinetic analysis indicates that the pseudo-second-order model provides a good description of Cu(II) adsorption behavior, while complementary characterization elucidates the underlying adsorption interactions. Owing to their tunable phase composition and effective Cu(II) adsorption performance, these alumina/iron oxide nanocomposites show potential for wastewater treatment in mildly acidic aqueous media.Clinical trial number: Not Applicable.
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BibTeX
@article{gholizadeh2026novel,
title = {{Novel phase-controlled Al2.66O3.99/iron oxide nanocomposites for rapid Cu(II) removal from acidic water.}},
author = {Zahra Gholizadeh and Mohammed J Al-Awady and Maryam Aliannezhadi},
journal = {Discover nano},
year = {2026},
month = oct,
doi = {10.1186/s11671-026-04999-4},
url = {https://europepmc.org/article/MED/42897367},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Novel phase-controlled Al2.66O3.99/iron oxide nanocomposites for rapid Cu(II) removal from acidic water.
AU - Zahra Gholizadeh
AU - Mohammed J Al-Awady
AU - Maryam Aliannezhadi
PY - 2026
DA - 2026/10/19
JO - Discover nano
DO - 10.1186/s11671-026-04999-4
UR - https://europepmc.org/article/MED/42897367
AB - In this study, alumina/iron oxide nanocomposites are synthesized via a simple, cost-effective co-precipitation method and investigated for the removal of copper ions from acidic aqueous media. Five samples with varying iron oxide phase contents are prepared by varying the precursor molar ratios. Structural analysis confirms the coexistence of Al₂.₆₆O₃.₉₉ and iron oxide phases, while Rietveld refinement reveals that the iron oxide phase fraction increases from 0.2% to 67.2% across the synthesized samples. The nanocomposites are characterized in detail using a range of analytical methods, including structural, morphological, optical, magnetic, and elemental analyses. Magnetic measurements indicate soft-magnetic behavior, with an enhanced response observed in the sample with the highest iron oxide content. The experimental results demonstrate rapid uptake of Cu(II), with significant removal occurring within the first few minutes and removal efficiencies exceeding 90% after 90 min for most samples. Nonlinear kinetic analysis indicates that the pseudo-second-order model provides a good description of Cu(II) adsorption behavior, while complementary characterization elucidates the underlying adsorption interactions. Owing to their tunable phase composition and effective Cu(II) adsorption performance, these alumina/iron oxide nanocomposites show potential for wastewater treatment in mildly acidic aqueous media.Clinical trial number: Not Applicable.
SN - 2731-9229
ER -