Removal of methyl orange wastewater by heterogeneous fenton-like reaction over activated carbon pre-treated by nitric acid

Chengle Li, Tian C. Zhang, Juan Liang, Ying Liang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Activated carbons from coconut shells were treated with different concentration of nitric acid and used as carriers. Fe catalysts supported on treated and untreated activated carbons were prepared by the equivalent-volume impregnation method to remove methyl orange by Heterogeneous Fenton process. The catalysts were characterized by using Brunauer–Emmett–Teller (BET) surface area characterization, Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The results are as follows: The order of the activity of adsorption reaction is AC-67%<Fe/ AC<AC<Fe/AC-20% < Fe/AC-40% < Fe/AC-67%; The order of the activity of catalytic reaction is AC-67%<Fe/AC-40%<Fe/AC-67% <Fe/AC-20% < Fe/AC< AC; The specific area of Fe/AC-67% is less than that of the activated carbon only infiltrated with FeSO O solution as well as the original activated carbon; Nitric acid treated can increase the surface 4 ·7Hfunctional 2 groups of activated carbon, especially increasing –C=O– and –COOH functional groups, which is also not good in the Heterogeneous Fenton process.

Original languageEnglish (US)
Pages (from-to)393-398
Number of pages6
JournalDesalination and Water Treatment
Volume145
DOIs
StatePublished - Mar 2019

Keywords

  • Activated carbon (AC)
  • Heterogeneous Fenton-like reaction
  • Methyl orange (MO)
  • Nitric acid
  • Surface functional groups

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

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