Photodegradation of Dyes Using Multiwalled Carbon Nanotube and Ferrous Ion

AbstractIn this paper, photodegradation of dyes [Acid Red 14 (AR14) and Acid Red 18 (AR18)] has been studied using multiwalled carbon nanotube (MWCNT), ferrous ion (Fe2+), and hydrogen peroxide. The surface characteristics of MWCNT were investigated using Fourier transform infrared (FTIR) and scanni...

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Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 2013-11, Vol.139 (11), p.1368-1374
Main Author: Mahmoodi, Niyaz Mohammad
Format: Article
Language:English
Subjects:
Acetates
Applied sciences
Degradation
Dyes
Exact sciences and technology
Formates
Fourier transforms
Multi wall carbon nanotubes
Photodegradation
Pollution
Scanning electron microscopy
Technical Papers
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Summary:AbstractIn this paper, photodegradation of dyes [Acid Red 14 (AR14) and Acid Red 18 (AR18)] has been studied using multiwalled carbon nanotube (MWCNT), ferrous ion (Fe2+), and hydrogen peroxide. The surface characteristics of MWCNT were investigated using Fourier transform infrared (FTIR) and scanning electron microscopy (SEM). UV-Visible (UV-Vis) and ion chromatography (IC) analyses were employed to investigate dye degradation. The effects of MWCNT, Fe2+, initial dye concentration, and salt on the photodegradation of dye were investigated. Formate, acetate, and oxalate were detected as aliphatic intermediates. The NO3- and SO42- were detected as dye mineralization products. The results showed that MWCNT/Fe2+ might be a suitable catalyst for dye degradation.
ISSN:0733-9372
1943-7870
DOI:10.1061/(ASCE)EE.1943-7870.0000762