Fast adsorption kinetics of highly dispersed ultrafine nickel/carbon nanoparticles for organic dye removal

Taek Seung Kim, Hee Jo Song, Mushtaq Ahmad Dar, Hack Jun Lee, Dong-Wan Kim

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Magnetic metal/carbon nano-materials are attractive for pollutant adsorption and removal. In this study, ultrafine nickel/carbon nanoparticles are successfully prepared via electrical wire explosion processing in ethanol media for the elimination of pollutant organic dyes such as Rhodamine B and methylene blue in aqueous solutions. High specific surface areas originating from both the nano-sized particles and the existence of carbon on the surface of Ni nanoparticles enhance dye adsorption capacity. In addition to this, the excellent dispersity of Ni/C nanoparticles in aqueous dye solutions leads to superior adsorption rates. The adsorption kinetics for the removal of organic dyes by Ni/C nanoparticles agree with a pseudo-second-order model and follow Freundlich adsorption isotherm behavior.

Original languageEnglish
Pages (from-to)364-370
Number of pages7
JournalApplied Surface Science
Volume439
DOIs
Publication statusPublished - 2018 May 1

Keywords

  • Dye
  • Fast adsorption
  • Magnetism
  • Ni nanoparticle
  • Ultrafine

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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