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Adsorption of the reactive gray BF-2R dye on orange peel: kinetics and equilibrium studies

Desalination and Water Treatment, ISSN: 1944-3986, Vol: 52, Issue: 7, Page: 1578-1588
2014
  • 17
    Citations
  • 0
    Usage
  • 24
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    17
    • Citation Indexes
      17
  • Captures
    24

Article Description

Adsorption of the reactive gray BF-2R dye from an aqueous solution using orange peel as the adsorbent was investigated by the batch method. Experiments characterizing the chemical and physical properties of the adsorbent found that orange peel is a microporous material with a pH zpc 3.9 and containing carboxylic and sulfonic groups. The greatest adsorption capacity was obtained using a 2 3 factorial design for 0.25 g of adsorbent, particle size <0.419 mm and at 300 rpm. The pseudo-second-order model provided the best fit of the experimental data. The Weber–Morris model indicated that two or more mechanisms control the process. Statistical analysis of the equilibrium studies indicated that there was not a significant difference between the Langmuir and the Fritz–Schlunder models according to an F -test. The results showed that orange peel can remove the reactive gray BF-2R dye.

Bibliographic Details

Graziele Elisandra do Nascimento; Marta Maria Menezes Bezerra Duarte; Natália Ferreira Campos; Celmy Maria Bezerra de Menezes Barbosa; Valdinete Lins da Silva

Elsevier BV

Environmental Science; Engineering

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