ArticleHeliyon2022
Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell.
Article in Heliyon, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Environmental remediation and wastewater treatment using silver incorporated dual metal oxide polyaniline nano composites kinetic insights into Pb (II) and As (III) adsorptive removal.Scientific reports · 2026Article
- Synthesis and Characterization of Eco-Engineered Hollow FeNanomaterials (Basel, Switzerland) · 2025Article
- Review
- Adsorptive removal of phosphate from water with biochar from acacia tree modified with iron and magnesium oxides.Scientific reports · 2024Article
- Removal of Cr(VI) from Wastewater Using Acrylonitrile Grafted Cellulose Extracted from Sugarcane Bagasse.Molecules (Basel, Switzerland) · 2024Article
- Adsorption Kinetics of Cadmium and Lead by Biochars in Single- and Bisolute Brackish Water Systems.ACS omega · 2023Article
- Article
- Biosorption of aqueous Pb(II) by HHeliyon · 2023Article
- Enhancing CuMolecules (Basel, Switzerland) · 2023Article
- Article
- Adsorption and controlled release performances of flavor compounds by rice bran insoluble dietary fiber improved through steam explosion method.Current research in food science · 2023Article
- Biosorption of Neodymium (Nd) from Aqueous Solutions UsingPolymers · 2022Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Among available technologies to remove heavy metals from wastewater, biosorption has gained more attention due to its high removal efficiency, friendly operation, and inexpensive cost. Despite many studies on metal adsorption from single ion solutions, kinetics and isotherms of binary metal ions simultaneously adsorbed onto biosorbents have not been thoroughly investigated to provide insight on involving mechanisms. This study explored the adsorption potential of untreated venus shells (UVS) that can be utilized in economical and environmentally-friendly ways. In this work, UVS of different sizes were prepared without chemical treatment as a biosorbent. Characterization of UVS was accomplished using nitrogen adsorption isotherm, FTIR, and SEM-EDX. Batch adsorption was carried out to study the effect of initial metal ion concentration, adsorbent dosage, and size on removing Cu(II) and Zn(II) from a binary solution of both metal ions using UVS. The experimental values of maximum adsorption capacities of Cu(II) and Zn(II) were 0.446 and 0.465 mg/g, respectively. The adsorption data were analyzed using the pseudo-first order, pseudo-second order, Elovich, and intraparticle diffusion rate equations. The pseudo-second order and the intraparticle diffusion model yielded the best fit to the experimental data for Cu(II) and Zn(II) ions, respectively. The equilibrium isotherm was examined using the Langmuir, Freundlich, Temkin, Dubinin-Radushkevich (D-R), and Elovich models. The Freundlich model best fits the Cu(II) and Zn(II) equilibrium adsorption data. The results indicated that the adsorption of Cu(II) and Zn(II) onto UVS-600 adsorbent could undergo a chemisorption mechanism. Both metal ions in an aqueous solution were competitively adsorbed onto the heterogeneous active sites available on the shell surfaces. Cu(II) and Zn(II) ions in the binary system could result in ionic interference between the adsorbed ions and the active sites.
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