Use of iron oxide nanomaterials in wastewater treatment: A review

Xu, Piao; Zeng, Guang; Huang, Dan Lian; Feng, Chong; Hu, Shuang; Zhao, Mei Hua; Lai, Cui; Wei, Zhen; Huang, Chao; Xie, Geng Xin; Liu, Zhi Feng

doi:10.1016/j.scitotenv.2012.02.023

Cited by 1,673 publications

(538 citation statements)

References 133 publications

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“…There are a number of methods reported for the removal of heavy metals, such as ion exchange (Deng et al 2005), filtration , precipitation (Chang and Chen 2005), membrane process, reverse osmosis (Xu et al 2012), sedimentation and electrochemical treatment (Kim et al 2001). Out of all the process, the membrane adsorption technique is the most preferable one for heavy metal ion removal.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of chitosan–magnetite nanocomposite strip for chromium removal

et al. 2015

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Environmental pollution caused by heavy metals is a serious threat. In the present work, removal of chromium was carried out using chitosan-magnetite nanocomposite strip. Magnetite nanoparticles (Fe 3 O 4 ) were synthesized using chemical co-precipitation method at 80°C. The nanoparticles were characterized using UVvisible spectroscopy, fourier transform infrared spectroscopy, X-ray diffraction spectrometer, atomic force microscope, dynamic light scattering and vibrating sample magnetometer, which confirm the size, shape, crystalline nature and magnetic behaviour of nanoparticles. Atomic force microscope revealed that the particle size was 15-30 nm and spherical in shape. The magnetite nanoparticles were mixed with chitosan solution to form hybrid nanocomposite. Chitosan strip was casted with and without nanoparticle. The affinity of hybrid nanocomposite for chromium was studied using K 2 Cr 2 O 7 (potassium dichromate) solution as the heavy metal solution containing Cr(VI) ions. Adsorption tests were carried out using chitosan strip and hybrid nanocomposite strip at different time intervals. Amount of chromium adsorbed by chitosan strip and chitosan-magnetite nanocomposite strip from aqueous solution was evaluated using UV-visible spectroscopy. The results confirm that the heavy metal removal efficiency of chitosan-magnetite nanocomposite strip is 92.33 %, which is higher when compared to chitosan strip, which is 29.39 %.

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Section: Introductionmentioning

confidence: 99%

Fabrication of chitosan–magnetite nanocomposite strip for chromium removal

et al. 2015

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“…The spread of a wide range of contaminants (e.g., organic pollutants and heavy metals) in surface water and groundwater has become a critical issue worldwide, due to the fast population growth and rapid development of industrialization [1]. Thus, it is imperative to develop novel, efficient and friendly materials and technologies to remove these contaminants.…”

Section: Introductionmentioning

confidence: 99%

The distinct effects of Mn substitution on the reactivity of magnetite in heterogeneous Fenton reaction and Pb(II) adsorption

Liang

Zhu

Wei

et al. 2014

Journal of Colloid and Interface Science

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“…The latter may be more relevant for the fate of acidic PPCPs [7]. Iron oxide nanoparticles are being explored for fast adsorption and subsequent separation of organic contaminants from large volume water samples in ex-situ process [8]. To have better and tunable contaminant adsorption, surface of iron oxide nanoparticles are often functionalized by organic or inorganic materials appropriate for ease of dispersion and surface exchange reactions with organic contaminants [9].…”

Section: Introductionmentioning

confidence: 99%

“…To have better and tunable contaminant adsorption, surface of iron oxide nanoparticles are often functionalized by organic or inorganic materials appropriate for ease of dispersion and surface exchange reactions with organic contaminants [9]. The adsorption continues until surface functional sites are fully occupied, and thereafter contaminants diffuse into adsorbent for further interactions [8]. In this study, use of the carboxyl functionalized (methacrylic acid coated) nanoparticle into sand-column infiltration system was evaluated replicating the managed aquifer treatment system.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Carbamazepine and Diatrizoate in Iron Oxide Nanoparticles Amended Sand Column Mimicing Managed Aquifer Recharge

Yoon

Mahanty

Kim

2017

Water

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Abstract:The sorption-desorption of recalcitrant pharmaceuticals in sand/soil columns can be used to infer performance of managed aquifer recharge. Removal of carbamazepine (CBZ) and diatrizoate (DTZ) from synthetic wastewater, containing 100 µg·L −1 of each pharmaceuticals, was studied in recirculating sand columns amended with uncoated or methacrylic acid (MAA) coated magnetite nanoparticles. Removal of CBZ and DTZ in MAA-magnetite column (68.34% and 61.91%, respectively) was much higher than that with uncoated magnetite (53.47% and 50.26%, respectively). Rapid decrease of dissolved organic carbon concentrations across nanoparticle amended columns (between 42.28% and 50.08% on Day 1), followed by slow recuperation suggests adsorption-desorption dynamics and competition of dissolved organic matter for sorption sites. Core-level binding energy and charge analysis for Fe(2s) and O(1s) in X-ray photoelectron spectroscopy suggests involvement of physisorption process on the NP surfaces.

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Use of iron oxide nanomaterials in wastewater treatment: A review

Cited by 1,673 publications

References 133 publications

Fabrication of chitosan–magnetite nanocomposite strip for chromium removal

Fabrication of chitosan–magnetite nanocomposite strip for chromium removal

The distinct effects of Mn substitution on the reactivity of magnetite in heterogeneous Fenton reaction and Pb(II) adsorption

Adsorptive Removal of Carbamazepine and Diatrizoate in Iron Oxide Nanoparticles Amended Sand Column Mimicing Managed Aquifer Recharge

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