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

Title
Photocatalytic efficiency of iron oxide nanoparticles for the degradation of priority pollutant anthracene
Author
전병훈
Keywords
Iron oxides; nanoparticles; anthracene; HPLC; degradation
Issue Date
2017-01
Publisher
TAYLOR & FRANCIS LTD : 한국자원공학회
Citation
GEOSYSTEM ENGINEERING, v. 20, no. 1, page. 21-27
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 (alpha-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 alpha-FeOOH and Fe3O4, respectively. The results reveal that the photocatalytic activity of magnetite is low as compared to goethite.
URI
https://www.tandfonline.com/doi/full/10.1080/12269328.2016.1218302http://repository.hanyang.ac.kr/handle/20.500.11754/112234
ISSN
1226-9328; 2166-3394
DOI
10.1080/12269328.2016.1218302
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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