Removal of Cu2+ from aqueous solution by chitosan-coated magnetic nanoparticles modified with α-ketoglutaric acid

Zhou, Yuting; Nie, Huali; Branford-White, Christopher; He, Zhiyan; Zhu, Li‐Min

doi:10.1016/j.jcis.2008.10.026

Cited by 414 publications

(186 citation statements)

References 52 publications

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“…Consequently, composite or hybrid structures are promising materials for water treatment. The widely used host materials for nanocomposite include carbonaceous materials like granular activated carbon [25], silica [26][27][28][29], cellulose [30,31], chitosan [32,33], sand [34,35], and polymers [36][37][38]. Some examples include the immobilization of metal oxides on carbon nanotubes for lead, arsenic, and fluoride removal 2 Journal of Nanomaterials [39][40][41], activated carbon immobilized on carbon nanotubes for chromium removal [25], and carbohydrate and iron oxide on multiwalled carbon nanotubes for zinc removal [42].…”

Section: Introductionmentioning

confidence: 99%

Bimetallic Oxide Nanohybrid Synthesized from Diatom Frustules for the Removal of Selenium from Water

Thakkar

Mitra

2017

Journal of Nanomaterials

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Frustules or the rigid amorphous silica cell wall of unicellular, photosynthetic microalgae with unique porous architecture has been used to synthesize a composite by immobilizing zirconium and iron oxides on its surface and in the pores. This was effective for removal of Se from water, which is an emerging contaminant that is a micronutrient at low concentrations but toxic at high concentrations. The adsorption isotherms followed both Langmuir and Freundlich models, and the composite was regenerable. The Langmuir maximum adsorption capacity for Se(IV) ( ) was 227 mg/g, which is among the highest ever reported. The research findings highlight the synthesis of bimetallic composite as well as the potential of diatoms as hosts for nanomaterials for use in water treatment.

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Section: Introductionmentioning

confidence: 99%

Bimetallic Oxide Nanohybrid Synthesized from Diatom Frustules for the Removal of Selenium from Water

Thakkar

Mitra

2017

Journal of Nanomaterials

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“…This can change in the surface layer properties to become more different from that in the core of the nanoparticles [14]. The properties of the nanocrystals strongly depend on the dimension of the nanoparticles [15,16]. Fe 3 O 4 and Fe 2 O 3 nanoparticles stabilized by Aloe Vera were successfully applied before for the elimination of mercury (70%) from a wastewater sample [17].…”

Section: Introductionmentioning

confidence: 99%

Applications of CTAB Modified Magnetic Nanoparticles for Removal of Chromium (VI) from Contaminated Water

Youssef¹,

Elfeky²,

Mahmoud³

2017

Preprint

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a b s t r a c tThis study investigated the elimination of Cr(VI) from aqueous solution utilizing a composite from magnetic nanoparticles (Fe 3 O 4 ) capped with cetyltrimethylammonium bromide (CTAB). The structure of the prepared composite system was examined by Fourier Transform Infra Red Spectroscopy (FTIR), X-ray Diffractometry (XRD), and Transmission Electron Microscopy (TEM). Separation of the Fe 3 O 4 /CTAB composite from the wastewater can be achieved by application of an external magnetic field. Factors affecting the Cr(VI) expulsion from wastewater such as pH, competing ions, the dosage level of the nanoparticles, and contact time were studied. The results indicated that the maximum efficiency of the present system for removal of Cr(VI) (95.77%) was in acidic conditions (pH 4), contact time 12 h, and composite dosage of 12 mg/mL. The used Cr(VI) concentration was 100 mg/L. Considering results, the Fe 3 O 4 /CTAB system showed a high capability and selectivity for the treatment of water sullied with Cr(VI). This can recede the mutagenic and carcinogenic health risk caused by Cr(VI) water tainting. IntroductionStudy of water remediation from contaminants such as toxic heavy metals is one of the most important environmental issues. Contaminants can pose serious health and environmental probhttp://dx

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“…Nano sized magnetic par ticles are considered potential adsorbents for aqueous heavy metals due to their high surface area and the unique advantage of easy separation under external magnetic fields [15][16][17][18][19] . To further facilitate the adsorption affinity, surface modification, including physical coating and covalent binding, has often been explored to enable specific metal complexation [20][21][22][23][24][25] . For example, covalent attachment of carboxylic groups to the surface of magnetic nanoparticles was achieved by reacting hematite with 11-undecanoic acid, and the resulting material showed marked ability in adsorbing Cd (II) 20 .…”

Section: Introductionmentioning

confidence: 99%

A Study of Fe3O4@ Zigzag, @Armchair and @Chiral Swcnts and α and γ Cyclodextrins

Khosravi¹

2016

Orient. J. Chem

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Removal of Cu2+ from aqueous solution by chitosan-coated magnetic nanoparticles modified with α-ketoglutaric acid

Cited by 414 publications

References 52 publications

Bimetallic Oxide Nanohybrid Synthesized from Diatom Frustules for the Removal of Selenium from Water

Bimetallic Oxide Nanohybrid Synthesized from Diatom Frustules for the Removal of Selenium from Water

Applications of CTAB Modified Magnetic Nanoparticles for Removal of Chromium (VI) from Contaminated Water

A Study of Fe3O4@ Zigzag, @Armchair and @Chiral Swcnts and α and γ Cyclodextrins

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