Abstract
The study provides a comparative analysis of As (III), As (V) and F removal by iron oxide nanoparticles and iron oxide/alumina nanocomposites. The nanoparticles were characterized by particle size, zeta potential and Scanning Electron Microscopic analysis which showed spherical iron oxide nanoparticles around ~200 nm and nanocomposites around ~300 nm. Batch sorption studies carried out at varying initial concentrations of As and F revealed an enhanced F and As sorption capacity for the nanocomposites. The sorption isotherm showed that the data for As (III), As (V) and F fitted best to Freundlich isotherm for both the type of nanoparticles. The maximum sorption capacity of the iron oxide nanoparticles for As (III) and As (V) at pH 7 were 909 μg/g and 3333 μg/g while the comparative qm values for the nanocomposites were 1000 μg/g and 2500 μg/g respectively. The maximum F sorption capacity of iron oxide nanoparticles was 1.47 mg/g while it was 4.82 mg/g for the nanocomposites. The preliminary results of the study showed that the nanocomposites can be promising adsorbents for both As and F removal in small scale water systems.
Original language | English |
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Title of host publication | Proceedings of the 3nd World Congress on New Technologies, NEWTECH 2017 |
Publisher | Avestia publishing |
Number of pages | 4 |
ISBN (Print) | 9781927877319 |
DOIs | |
Publication status | Published - 2017 |
Event | Proceedings of the 3nd World Congress on New Technologies, NEWTECH 2017 - Rome, Italy Duration: 6 Jul 2017 → 8 Jul 2017 |
Conference
Conference | Proceedings of the 3nd World Congress on New Technologies, NEWTECH 2017 |
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Country/Territory | Italy |
City | Rome |
Period | 6/07/17 → 8/07/17 |
Keywords
- Alumina
- Arsenic
- Fluoride
- Iron oxide
- Nanoparticles