Isotherms, kinetics and thermodynamic studies of adsorption of Ni and Cu by modification of Al2O3 nanoparticles with natural organic matter
Abstract
In this study, removal of Ni and Cu ions from aqueous media was assessed by the adsorption of Al2O3 nanoparticles (ANPs), with surface modification by natural organic matter (NOM). The obtained materials (NOM–ANPs) were characterized by Fourier transform infrared spectroscopy. Then, batch adsorption methods were carried out as a function of contact time, adsorbate concentration, pH and temperature. Kinetic experiments revealed that the pseudo-second-order model exhibited the best correlation with the adsorption data, the estimated maximum adsorption capacity of Ni and Cu could reach 15.38 and 62.50 mg g−1 respectively at 303 K, displaying higher efficiency for Ni and Cu removal than previously reported adsorbent materials reported in the literature. Thermodynamic studies exposed the feasibility and endothermic nature of the system. The experimental results show the technical feasibility of NOM–ANPs, its easy synthesis, economic and a promising advanced adsorbent in environmental pollution cleanup.
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Nanomaterials, such as nanoparticles, nanotubes, and nanomembranes, are capable of detecting and removing various biological and chemical particles, including toxic elements of heavy metals, dyes, organic substances, bacteria, viruses, antibiotics, micronutrients, and algae.
“Nanomaterials, such as nanoparticles, nanotubes, and nanomembranes, are capable of detecting and removing various biological and chemical particles, including toxic elements of heavy metals, dyes, organic substances, bacteria, viruses, antibiotics, micronutrients, and algae.105,106”
From Emerging nanotechnology approaches for sustainable water treatment and heavy metals removal: a comprehensive review (2025) · cites this paper as [105]
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Hussein, E. B., Rasheed, F. A., Mohammed, A. S., & Kayani, K. F. (2025) · RSC Advances · doi:10.1039/d5ra06914a · Cited by 86 · see citing works
- Authors
- Khan, S., Dan, Z., Mengling, Y., Yang, Y., Haiyan, H., & Hao, J.
- Affiliations
- Chinese Academy of Sciences (CN)
- Key Laboratory of Mountain Environmental Diversity and Control, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Conservancy, Chengdu, China
- China Tobacco (CN)
- Venue
- Fullerenes, Nanotubes and Carbon Nanostructures
- Publisher
- Informa UK Limited
- Published
- 2018-02-28
- Volume
- 26
- Issue
- 3
- Pages
- 158-167
- ISSN
- 1536-383X (ISSN-L)
- 1536-4046
- OpenAlex
- W2790951809
- Cited by
- 33
- References
- 64
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 1 · 2023: 4 · 2022: 4 · 2021: 12 · 2020: 3 · 2019: 2 · 2018: 2
- FWCI
- 2.08
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Fullerenes Nanotubes and Carbon Nanostructures (publishedVersion)
- Funders
- National Natural Science Foundation of China (41571315)
- key project of China National Tobacco corporation Sichuan (SCYC 201504)
- CAS President's International Fellowship Initiative China (2017PCOO59)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
- Physical Sciences › Environmental Science › Water Science and Technology › Coagulation and Flocculation Studies
- Keywords
- nickel adsorption, copper adsorption, Al2O3 nanoparticles, natural organic matter, nanoparticle surface modification, heavy metal removal from water, adsorption isotherms, pseudo-second-order kinetics, adsorption thermodynamics, endothermic adsorption, low-cost adsorbent
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