ArticleGels (Basel, Switzerland)2022
Highly Efficient Adsorption of Heavy Metals and Cationic Dyes by Smart Functionalized Sodium Alginate Hydrogels.
Article in Gels (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Hybrid Microhydrogels with Sulfonic Groups for the Removal of Methylene Blue from Aqueous Solutions.Gels (Basel, Switzerland) · 2026Article
- Enhancing Zn(ii) adsorption efficiency of alginic acid through pyridine-2-imine functionalization: kinetic, isotherm, and mechanistic insights.RSC advances · 2025Article
- A Highly Efficient Graphene-Based Material for the Removal of Cationic Dyes from Aqueous Solutions.Materials (Basel, Switzerland) · 2025Article
- Article
- Article
- Synthesis and Application of Salicylhydrazone Probes with High Selectivity for Rapid Detection of CuMolecules (Basel, Switzerland) · 2024Article
- Preparation and Characterization of FeGels (Basel, Switzerland) · 2023Article
- Editorial for Special Issue: Advances in Smart and Tough Hydrogels.Gels (Basel, Switzerland) · 2023Article
- Aloe Vera Functionalized Magnetic Nanoparticles Entrapped Ca Alginate Beads as Novel Adsorbents for Cu(II) Removal from Aqueous Solutions.Nanomaterials (Basel, Switzerland) · 2022Article
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Authors and funding
6 authors.
Funding
Abstract
In this paper, functionalized sodium alginate hydrogel (FSAH) was prepared to efficiently adsorb heavy metals and dyes. Hydrazide-functionalized sodium alginate (SA) prepared hydrazone groups to selectively capture heavy metals (Pb2+, Cd2+, and Cu2+), and another functional group (dopamine grafting), serves as sites for adsorption methylene blue (MB), malachite green (MG), crystal violet (CV). Thermodynamic parameters of adsorption indicated that the adsorption process is endothermic and spontaneous. The heavy metals adsorption by FSAH was physical adsorption mainly due to ΔHθ < 40 kJ/mol, and the adsorption of cationic dyes fitted with the Langmuir models, which indicated that the monolayer adsorption is dominated by hydrogen bonds, electrostatic interactions, and π-π interactions. Moreover, the adsorption efficiency maintained above 70% after five adsorption-desorption cycles. To sum up, FSAH has great application prospect.
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