Arsenic and fluoride removal by iron oxide and iron oxide/alumina nanocomposites: A comparison

T. C. Prathna, Saroj Kumar Sharma, Maria Kennedy

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

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 languageEnglish
Title of host publicationProceedings of the 3nd World Congress on New Technologies, NEWTECH 2017
PublisherAvestia publishing
Number of pages4
ISBN (Print)9781927877319
DOIs
Publication statusPublished - 2017
EventProceedings of the 3nd World Congress on New Technologies, NEWTECH 2017 - Rome, Italy
Duration: 6 Jul 20178 Jul 2017

Conference

ConferenceProceedings of the 3nd World Congress on New Technologies, NEWTECH 2017
CountryItaly
CityRome
Period6/07/178/07/17

Keywords

  • Alumina
  • Arsenic
  • Fluoride
  • Iron oxide
  • Nanoparticles

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