Photocatalytic efficiency of iron oxide nanoparticles for the degradation of priority pollutant anthracene

Himanshu Gupta, Rahul Kumar, Hyun Sung Park, Byong-Hun Jeon

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The present work demonstrates an efficient and cost effective methodology for the synthesis of iron oxide nanoparticles without the assistance of any capping agent. Two different forms of iron oxide nanoparticles, namely, goethite (α-FeOOH) and magnetite (Fe3O4) were synthesized and characterized through X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The XRD spectra were found concordant with JCPDS-ICDD data. The crystallite sizes for goethite and magnetite were found to be 9.85 and 14.13 nm, respectively. The mean particle sizes estimated via SEM analysis were 32.23 and 63.27 nm, respectively. Energy-dispersive X-ray (EDX) spectroscopy was used to estimate the elemental composition of the synthesized nanoparticles (NPs). The NPs were further used for the degradation of anthracene in the presence of UV light. The decay profiles of anthracene,a polycyclic aromatic hydrocarbon listed as a priority pollutant by United States Environmental Protection Agency (USEPA), were investigated with different forms of iron oxides NPs under UV irradiation at ambient temperature. Both forms of iron oxides were efficient for the photodegradation of anthracene. The decay profiles in both the cases followed the first-order kinetics. The half-lives for anthracene degradation were 3.21 and 4.39 h with α-FeOOH and Fe3O4, respectively. The results reveal that the photocatalytic activity of magnetite is low as compared to goethite.

Original languageEnglish
Pages (from-to)21-27
Number of pages7
JournalGeosystem Engineering
Volume20
Issue number1
DOIs
StatePublished - 2017 Jan 2

Fingerprint

Anthracene
Iron oxides
iron oxide
Nanoparticles
Magnetite
Degradation
degradation
goethite
pollutant
magnetite
scanning electron microscopy
X-ray diffraction
X ray diffraction
Scanning electron microscopy
capping
Photodegradation
Environmental Protection Agency
photodegradation
Polycyclic aromatic hydrocarbons
Crystallite size

Keywords

  • anthracene
  • degradation
  • HPLC
  • Iron oxides
  • nanoparticles

Cite this

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Photocatalytic efficiency of iron oxide nanoparticles for the degradation of priority pollutant anthracene. / Gupta, Himanshu; Kumar, Rahul; Park, Hyun Sung; Jeon, Byong-Hun.

In: Geosystem Engineering, Vol. 20, No. 1, 02.01.2017, p. 21-27.

Research output: Contribution to journalArticle

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