Adsorptive removal of Cu(II) from aqueous solutions using collagen-tannin resin

Sun, Xiuyun; Huang, Xin; Liao, Xuepin; Shi, Bi

doi:10.1016/j.jhazmat.2010.11.098

Cited by 75 publications

(18 citation statements)

References 38 publications

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“…Many 38 magnetic nanoparticles such as magnetite (Fe 3 O 4 ) [19], hematite 39 (ɑ-Fe 2 O 3 ) [20], and goethite (ɑ-FeOOH) [14] have been used for the 40 removal of pollutant from aqueous media. However, bare magnetic 41 nanoparticles easily get oxidize in air. Hence several researchers material with fast kinetics and metallic and bimetallic nano- 48 particles such as spherical iron oxide nanoparticles have been used 49 towards the adsorption of Hg(II), Cu(II), and Ag(I) [16].…”

Section: Introductionmentioning

confidence: 99%

Copper adsorption onto synthesized nitrilotriacetic acid functionalized Fe3O4 nanoparticles: kinetic, equilibrium and thermodynamic studies

Singh

Verma

Gautam

et al. 2015

Journal of Environmental Chemical Engineering

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Section: Introductionmentioning

confidence: 99%

Copper adsorption onto synthesized nitrilotriacetic acid functionalized Fe3O4 nanoparticles: kinetic, equilibrium and thermodynamic studies

Singh

Verma

Gautam

et al. 2015

Journal of Environmental Chemical Engineering

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“…In principle, our strategy for the synthesis of BWT-Pd 2+ and BWT-PdNPs catalysts can extend to synthesize other noble metal catalyst because BWT has strong chelating ability towards most of the transition metal ions with d-orbits2829. To demonstrate this, we prepared BWT-Rh 3+ and BWT-RhNPs catalysts.…”

Section: Resultsmentioning

confidence: 99%

Biphasic catalysis using amphiphilic polyphenols-chelated noble metals as highly active and selective catalysts

Mao

Chen

et al. 2013

Sci Rep

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In the field of catalysis, it is highly desired to develop novel catalysts that combine the advantages of both homogeneous and heterogeneous catalysts. Here we disclose that the use of plant pholyphenol as amphiphilic large molecule ligand/stabilizer allows for the preparation of noble metal complex and noble metal nanoparticle catalysts. These catalysts are found to be highly selective and active in aqueous-organic biphasic catalysis of cinnamaldehyde and quinoline, and can be reused at least 3 times without significant loss of activity. Moreover, the catalytic activity and reusability of the catalysts can be rationally controlled by simply adjusting the content of polyphenols in the catalysts. Our strategy may be extended to design a wide range of aqueous-organic biphasic catalysis system.

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“…Therefore, copper can accumulate in sediments and tissues of living organisms, and separation of copper ions is essential to discharge wastewater into environment. Recently, many studies investigated the removal of copper ion, Cu(II), by adsorption techniques using novel adsorbent 2 Journal of Chemistry [3,16,[22][23][24][25]. Adsorptive removal of Cu(II) by chemically modified adsorbent was investigated in previous studies [3,26].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Copper by Using Surfactant Modified Laterite Soil

Pham

Nguyen

et al. 2017

Journal of Chemistry

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Removal of copper ion (Cu2+) by using surfactant modified laterite (SML) was investigated in the present study. Characterizations of laterite were examined by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), inductively coupled plasma mass spectrometry (ICP-MS), and total carbon analysis. The optimum conditions for removal of Cu2+ by adsorption using SML were systematically studied and found as pH 6, contact time 90 min, adsorbent dosage 5 mg/mL, and ionic strength 10 mM NaCl. The equilibrium concentration of copper ions was measured by flame atomic absorption spectrometry (F-AAS). Surface modification of laterite by anionic surfactant sodium dodecyl sulfate (SDS) induced a significant increase of the removal efficiency of Cu2+. The surface modifications of laterite by preadsorption of SDS and sequential adsorption of Cu2+ were also evaluated by XRD and FT-IR. The adsorption of Cu2+ onto SML increases with increasing NaCl concentration from 1 to 10 mM, but at high salt concentration this trend is reversed because desorption of SDS from laterite surface was enhanced by increasing salt concentration. Experimental results of Cu2+/SML adsorption isotherms at different ionic strengths can be represented well by a two-step adsorption model. Based on adsorption isotherms, surface charge effects, and surface modification, we suggest that the adsorption mechanism of Cu2+ onto SML was induced by electrostatic attraction between Cu2+ and the negatively charged SML surface and nonelectrostatic interactions between Cu2+ and organic substances in the laterite.

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Adsorptive removal of Cu(II) from aqueous solutions using collagen-tannin resin

Cited by 75 publications

References 38 publications

Copper adsorption onto synthesized nitrilotriacetic acid functionalized Fe3O4 nanoparticles: kinetic, equilibrium and thermodynamic studies

Copper adsorption onto synthesized nitrilotriacetic acid functionalized Fe3O4 nanoparticles: kinetic, equilibrium and thermodynamic studies

Biphasic catalysis using amphiphilic polyphenols-chelated noble metals as highly active and selective catalysts

Adsorptive Removal of Copper by Using Surfactant Modified Laterite Soil

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