The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.
Efficient and fast removal of Pb2+ and Cd2+ from an aqueous solution using a chitosan/Mg-Al-layered double hydroxide nanocomposite
Abstract
A new nanocomposite based on chitosan (CS) and Mg-Al-layered double hydroxide (Mg-Al-LDH) was prepared using an emulsion-crosslinking method. CS was immobilized within the Mg-Al-LDH matrix to form the CS-LDH after crosslinking by epichlorohydrin. The characterization of XPS, SEM, TEM, FTIR, and BET analysis showed that the CS-LDH had a high specific surface area and contained many different functional groups. The adsorption capacity of the CS-LDH was evaluated by adsorbing Pb 2+ and Cd 2+ as representative heavy metals. Batch adsorption method was used to investigate the effects of the amount of adsorbent, pH of the initial solution, and contact time. We also examined the adsorption kinetics, isotherms, and mechanisms. The capacity of the CS-LDH for Pb 2+ and Cd 2+ adsorption was higher than that of CS and the Mg-Al-LDH, and the isothermal data followed the Langmuir isotherm model. The adsorption equilibrium was quickly achieved and the kinetic data obeyed the pseudo-second-order kinetic model. The adsorption process was almost not affected by solution pH above 3. The CS-LDH and heavy metals interacted via the following mechanisms: precipitation, surface complexation, and isomorphic substitution.
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In the citing paper
“LDHs can be synthesized by cost-effective methods including co-precipitation, hydrothermal treatment, ion exchange, urea hydrolysis, or structure reconstruction, offering flexibility in composition and crystallinity.230–232”
From Emerging nanotechnology approaches for sustainable water treatment and heavy metals removal: a comprehensive review (2025) · cites this paper as [231]
In the citing paper
“Their lamellar architecture provides adjustable interlayer spacing, high surface area, and significant anion exchange capacity, making them especially effective for adsorption of heavy metal cations.”
From Emerging nanotechnology approaches for sustainable water treatment and heavy metals removal: a comprehensive review (2025) · cites this paper as [231]
In the citing paper
“Overall, LDHs remain one of the most promising adsorbent families for heavy metal removal due to their tunable structure, abundant binding sites, and versatility.”
From Emerging nanotechnology approaches for sustainable water treatment and heavy metals removal: a comprehensive review (2025) · cites this paper as [231]
In the citing paper
“Some hybrid LDH composites have shown excellent regeneration capability, maintaining a high proportion of their adsorption capacity after several cycles.174,231,232”
From Emerging nanotechnology approaches for sustainable water treatment and heavy metals removal: a comprehensive review (2025) · cites this paper as [231]
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Cited by
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“174,231,232 Overall, LDHs remain one of the most promising adsorbent families for heavy metal removal due to their tunable structure, abundant binding sites, and versatility.”
Metadata
- Authors
- Lyu, F., Yu, H., Hou, T., Yan, L., Zhang, X., & Du, B.
- Affiliations
- University of Jinan (CN)
- Corresponding author
- Yan, Liangguo
- ORCID
- Venue
- Journal of Colloid and Interface Science
- Publisher
- Elsevier BV
- Published
- 2019-03
- Volume
- 539
- Pages
- 184-193
- ISSN
- 0021-9797 (ISSN-L)
- OpenAlex
- W2905174931
- Cited by
- 162
- References
- 46
- Citations by year
- 2026: 8 · 2025: 33 · 2024: 14 · 2023: 20 · 2022: 29 · 2021: 27 · 2020: 19 · 2019: 12
- FWCI
- 6.34
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Colloid and Interface Science (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Natural Science Foundation of China (21577048)
- Topics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Materials Science › Materials Chemistry › Layered Double Hydroxides Synthesis and Applications
- Physical Sciences › Environmental Science › Environmental Engineering › Environmental remediation with nanomaterials
- Keywords
- chitosan, Mg-Al layered double hydroxide, nanocomposite adsorbent, lead removal, cadmium removal, heavy metal adsorption, emulsion cross-linking, epichlorohydrin, Langmuir isotherm, pseudo-second-order kinetics, adsorption mechanism, surface complexation, isomorphous substitution, pH effect on adsorption
- MeSH terms
- Aluminum, Cadmium, Hydroxides, Lead, Magnesium, Particle Size, Solutions, Surface Properties, Water Pollutants, Chemical, Chitosan, Nanocomposites
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