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Facile additive-free synthesis of iron oxide nanoparticles for efficient adsorptive removal of Congo red and Cr(VI)

•The iron oxide is gained via a facile, green, and economical synthesis process.•The promising adsorptive applications in water treatment are investigated.•Congo red removal capacity is 253.8mgg−1, and commercial α-Fe2O3 is 42.4mgg−1.•The maximum adsorption capacity for Cr(VI) is 17.0mgg−1. The iron... Full description

Journal Title: Applied Surface Science 15 February 2014, Vol.292, pp.174-180
Main Author: Hao, Tao
Other Authors: Yang, Chao , Rao, Xuehui , Wang, Jide , Niu, Chunge , Su, Xintai
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0169-4332 ; E-ISSN: 1873-5584 ; DOI: 10.1016/j.apsusc.2013.11.108
Link: http://dx.doi.org/10.1016/j.apsusc.2013.11.108
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recordid: elsevier_sdoi_10_1016_j_apsusc_2013_11_108
title: Facile additive-free synthesis of iron oxide nanoparticles for efficient adsorptive removal of Congo red and Cr(VI)
format: Article
creator:
  • Hao, Tao
  • Yang, Chao
  • Rao, Xuehui
  • Wang, Jide
  • Niu, Chunge
  • Su, Xintai
subjects:
  • Iron Oxide Nanoparticles
  • Water Treatment
  • Adsorption
  • Congo Red
  • Cr(VI)
  • Iron Oxide Nanoparticles
  • Water Treatment
  • Adsorption
  • Congo Red
  • Cr(VI)
  • Engineering
ispartof: Applied Surface Science, 15 February 2014, Vol.292, pp.174-180
description: •The iron oxide is gained via a facile, green, and economical synthesis process.•The promising adsorptive applications in water treatment are investigated.•Congo red removal capacity is 253.8mgg−1, and commercial α-Fe2O3 is 42.4mgg−1.•The maximum adsorption capacity for Cr(VI) is 17.0mgg−1. The iron oxide nanoparticles had been successfully synthesized via an additive-free hydrolysis process at 75°C for 12h. The product was characterized by X-ray diffraction (XRD), transmission electron microscopy (T), and N2 adsorption–desorption. The results of XRD and N2 adsorption–desorption demonstrated that the as-prepared product was mainly α-Fe2O3 with a large surface area of 164.1m2g−1. The T images illustrated that the as-prepared product was found to consist of a mixture of irregular spherical nanoparticles (a diameter of ∼50nm) and nanowhiskers (a diameter of ∼50nm and uneven length). The as-prepared product was used to investigate its promising applications...
language: eng
source:
identifier: ISSN: 0169-4332 ; E-ISSN: 1873-5584 ; DOI: 10.1016/j.apsusc.2013.11.108
fulltext: fulltext
issn:
  • 0169-4332
  • 01694332
  • 1873-5584
  • 18735584
url: Link


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titleFacile additive-free synthesis of iron oxide nanoparticles for efficient adsorptive removal of Congo red and Cr(VI)
creatorHao, Tao ; Yang, Chao ; Rao, Xuehui ; Wang, Jide ; Niu, Chunge ; Su, Xintai
ispartofApplied Surface Science, 15 February 2014, Vol.292, pp.174-180
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subjectIron Oxide Nanoparticles ; Water Treatment ; Adsorption ; Congo Red ; Cr(VI) ; Iron Oxide Nanoparticles ; Water Treatment ; Adsorption ; Congo Red ; Cr(VI) ; Engineering
description•The iron oxide is gained via a facile, green, and economical synthesis process.•The promising adsorptive applications in water treatment are investigated.•Congo red removal capacity is 253.8mgg−1, and commercial α-Fe2O3 is 42.4mgg−1.•The maximum adsorption capacity for Cr(VI) is 17.0mgg−1. The iron oxide nanoparticles had been successfully synthesized via an additive-free hydrolysis process at 75°C for 12h. The product was characterized by X-ray diffraction (XRD), transmission electron microscopy (T), and N2 adsorption–desorption. The results of XRD and N2 adsorption–desorption demonstrated that the as-prepared product was mainly α-Fe2O3 with a large surface area of 164.1m2g−1. The T images illustrated that the as-prepared product was found to consist of a mixture of irregular spherical nanoparticles (a diameter of ∼50nm) and nanowhiskers (a diameter of ∼50nm and uneven length). The as-prepared product was used to investigate its promising applications...
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•The iron oxide is gained via a facile, green, and economical synthesis process.•The promising adsorptive applications in water treatment are investigated.•Congo red removal capacity is 253.8mgg−1, and commercial α-Fe2O3 is 42.4mgg−1.•The maximum adsorption capacity for Cr(VI) is 17.0mgg−1.

The iron oxide nanoparticles had been successfully synthesized via an additive-free hydrolysis process at 75°C for 12h. The product was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and N2 adsorption–desorption. The results of XRD and N2 adsorption–desorption demonstrated that the as-prepared product was mainly α-Fe2O3 with a large surface area of 164.1m2g−1. The TEM images illustrated that the as-prepared product was found to consist of a mixture of irregular spherical nanoparticles (a diameter of ∼50nm) and nanowhiskers (a diameter of ∼50nm and uneven length). The as-prepared product was used to investigate its promising applications...

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•The iron oxide is gained via a facile, green, and economical synthesis process.•The promising adsorptive applications in water treatment are investigated.•Congo red removal capacity is 253.8mgg−1, and commercial α-Fe2O3 is 42.4mgg−1.•The maximum adsorption capacity for Cr(VI) is 17.0mgg−1.

The iron oxide nanoparticles had been successfully synthesized via an additive-free hydrolysis process at 75°C for 12h. The product was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and N2 adsorption–desorption. The results of XRD and N2 adsorption–desorption demonstrated that the as-prepared product was mainly α-Fe2O3 with a large surface area of 164.1m2g−1. The TEM images illustrated that the as-prepared product was found to consist of a mixture of irregular spherical nanoparticles (a diameter of ∼50nm) and nanowhiskers (a diameter of ∼50nm and uneven length). The as-prepared product was used to investigate its promising applications...

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date2014-02-15