Kinetic adsorption of application of carbon nanotubes for Pb(II) removal from aqueous solution

Nassereldeen A. Kabbashi, Muataz A. Atieh, Abdullah Al-Mamun, Mohamed ES Mirghami, MDZ D.Z. Alam, Noorahayu Yahya

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131 Citations (Scopus)

Abstract

The capability of carbon nanotubes (CNTs) to adsorb lead (Pb) in aqueous solution was investigated. Batch mode adsorption experiment was conducted to determine the effects of pH, agitation speed, CNTs dosage and contact time. The removal of Pb(II) reached maximum value 85% or 83% at pH 5 or 40 mg/L of CNTs, respectively. Higher correlation coefficients from Langmuir isotherm model indicates the strong adsorptions of Pb(II) on the surface of CNTs (adsorption capacity Xm = 102.04 mg/g). The results indicates that the highest percentage removal of Pb (96.03%) can be achieved at pH 5, 40 mg/L of CNTs, contact time 80 min, and agitation speed 50 r/min.

Original languageEnglish
Pages (from-to)539-544
Number of pages6
JournalJournal of Environmental Sciences
Volume21
Issue number4
DOIs
Publication statusPublished - 1 Apr 2009

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Keywords

  • adsorption
  • carbon nanotubes
  • kinetic modeling
  • lead removal

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Environmental Science(all)

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