A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A natural clayey adsorbent for selective removal of lead from aqueous solutions
https://orcid.org/0000-0003-3446-9651
Abstract Natural clay minerals are an inherently colorless class of materials, which have long been known for their versatility as adsorbents due to their interchange capacity, large catalytic support, great surface area, and low cost. Herein, we have reported the use of natural clay, collected from the Gabes area, southern Tunisia (Early Cretaceous) for selectively capturing of lead ions from aqueous environments. Our results showed that natural clay samples were mainly composed of silica, alumina, iron and magnesium oxides. Adsorption data showed that the studied clay samples preferably removed substantial amounts of lead ions from water. The removal efficiency of lead ions was about 86.4mg/g of clay and followed pseudo-second-order kinetics. More than 95% of the total adsorptive capacity occurred within 30min. These results suggest the Early Cretaceous clays, Tunisia, turned out to be an effective natural adsorbent for capturing of lead ions from aqueous environment.
Highlights Tunisian natural adsorbents have high adsorptive capacities for heavy metals. Selective removal of lead ions over other metals by natural adsorbents was achieved. The removal kinetics was governed by the pseudo-second-order model. The studied material achieved better removal efficiency than other natural adsorbents.
A natural clayey adsorbent for selective removal of lead from aqueous solutions
https://orcid.org/0000-0003-3446-9651
Abstract Natural clay minerals are an inherently colorless class of materials, which have long been known for their versatility as adsorbents due to their interchange capacity, large catalytic support, great surface area, and low cost. Herein, we have reported the use of natural clay, collected from the Gabes area, southern Tunisia (Early Cretaceous) for selectively capturing of lead ions from aqueous environments. Our results showed that natural clay samples were mainly composed of silica, alumina, iron and magnesium oxides. Adsorption data showed that the studied clay samples preferably removed substantial amounts of lead ions from water. The removal efficiency of lead ions was about 86.4mg/g of clay and followed pseudo-second-order kinetics. More than 95% of the total adsorptive capacity occurred within 30min. These results suggest the Early Cretaceous clays, Tunisia, turned out to be an effective natural adsorbent for capturing of lead ions from aqueous environment.
Highlights Tunisian natural adsorbents have high adsorptive capacities for heavy metals. Selective removal of lead ions over other metals by natural adsorbents was achieved. The removal kinetics was governed by the pseudo-second-order model. The studied material achieved better removal efficiency than other natural adsorbents.
A natural clayey adsorbent for selective removal of lead from aqueous solutions
https://orcid.org/0000-0003-3446-9651
Abstract Natural clay minerals are an inherently colorless class of materials, which have long been known for their versatility as adsorbents due to their interchange capacity, large catalytic support, great surface area, and low cost. Herein, we have reported the use of natural clay, collected from the Gabes area, southern Tunisia (Early Cretaceous) for selectively capturing of lead ions from aqueous environments. Our results showed that natural clay samples were mainly composed of silica, alumina, iron and magnesium oxides. Adsorption data showed that the studied clay samples preferably removed substantial amounts of lead ions from water. The removal efficiency of lead ions was about 86.4mg/g of clay and followed pseudo-second-order kinetics. More than 95% of the total adsorptive capacity occurred within 30min. These results suggest the Early Cretaceous clays, Tunisia, turned out to be an effective natural adsorbent for capturing of lead ions from aqueous environment.
Highlights Tunisian natural adsorbents have high adsorptive capacities for heavy metals. Selective removal of lead ions over other metals by natural adsorbents was achieved. The removal kinetics was governed by the pseudo-second-order model. The studied material achieved better removal efficiency than other natural adsorbents.
A natural clayey adsorbent for selective removal of lead from aqueous solutions
Sdiri, Ali (author) / Khairy, Mohamed (author) / Bouaziz, Samir (author) / El-Safty, Sherif (author)
Applied Clay Science ; 126 ; 89-97
2016-03-01
9 pages
Article (Journal)
Electronic Resource
English
Heavy metals , Adsorption , Lead ions , Clay , Mesoporous , Kinetics
A natural clayey adsorbent for selective removal of lead from aqueous solutions
| Online Contents | 2016
Removal of lead from aqueous solutions by condensed tannin gel adsorbent
| Online Contents | 2003
Chromium (VI) removal from aqueous solutions using Eichhornia as an adsorbent
| DOAJ | 2017
Characterization of Bottom Ash as an Adsorbent of Lead from Aqueous Solutions
| British Library Online Contents | 2010