Adsorption performances and mechanisms of the newly synthesized N,N′-di (carboxymethyl) dithiocarbamate chelating resin toward divalent heavy metal ions from aqueous media

Jing, Xiaosheng; Liu, Fuqiang; Yang, Xin; Ling, Panpan; Li, Lanjuan; Long, Chao; Li, Aimin

doi:10.1016/j.jhazmat.2009.01.020

Cited by 136 publications

(42 citation statements)

References 35 publications

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“…The calculated q e , K 2 and the corresponding linear regression correlation coefficient values are summarized in Table 4. The adsorption rate is related to the content of the active adsorption sites on the matrix of the adsorbent and also on the metal ionic radius (Jing et al 2009). According to Table 4, Cu(II) ions with a lower ionic radius show higher adsorption rate.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Adsorption studies of Pb(II) and Cu(II) ions on mesoporous carbon nitride functionalized with melamine-based dendrimer amine

Anbia

Haqshenas

2015

Int. J. Environ. Sci. Technol.

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Mesoporous carbon nitride functionalized with melamine-based dendrimer amine has been developed. It has been characterized using N 2 adsorption-desorption isotherm, thermogravimetric analysis, Fourier transform spectroscopy and small-angle X-ray scattering techniques. The pore diameter is centered at 4.74 nm with a relatively high BET surface area of 102.2 m 2 /g with a pore volume of 0.12 cm 3 /g. Thermogravimetric analysis curves show that the samples (mesoporous carbon nitride and mesoporous carbon nitride functionalized with melamine-based dendrimer amine) have high thermal stability compared to the earlier species. Batch adsorption experiments were conducted to study the effect of adsorbent dose, temperature, contact time and solution pH for the removal of Pb(II) from aqueous systems. The Pb(II) and Cu(II) removal by mesoporous carbon nitride functionalized with melaminebased dendrimer amine was found to be 196.34 and 199.75 mg/g, respectively. The sorption data are correlated better with the Langmuir adsorption isotherm than Freundlich isotherm. The kinetic analysis has revealed that the overall adsorption process is successfully fitted in the pseudo-second-order kinetic model.

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Section: Adsorption Kineticsmentioning

confidence: 99%

Adsorption studies of Pb(II) and Cu(II) ions on mesoporous carbon nitride functionalized with melamine-based dendrimer amine

Anbia

Haqshenas

2015

Int. J. Environ. Sci. Technol.

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“…The effects of temperature (20,30,40, 50 • C) on metal ions adsorption were conducted with 0.2 g of MDA-SBA-15 adsorbent dose in 200 ml of single metal ion solution at pH 4, each containing 100 mg/L of Pb(II), Cu(II) or Cd(II).…”

Section: Effect Of Temperaturementioning

confidence: 99%

“…The adsorption experiment was carried out at different temperatures (20,30,40, 50 • C) to evaluate thermodynamic criteria by calculating the Gibbs free energy ( G 0 ) by the following equation:…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

Functionalized SBA-15 mesoporous silica by melamine-based dendrimer amines for adsorptive characteristics of Pb(II), Cu(II) and Cd(II) heavy metal ions in batch and fixed bed column

Shahbazi

Younesi

Badiei

2011

Chemical Engineering Journal

386

154

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“…First, the carboxyl groups are the main functional groups responsible for adsorption of Pb(II) ions. In the adsorption process of hydrogels composites for Pb(II) ions, the addition of lignin improves the gel network structure by damaging parts of the network structure of polyacrylic acid, which leads to reduction in crosslinking intensity, reduced number of carboxyl groups, and increased activated points (Jing et al 2009). At the same time, the new structure formed benefits the absorption capacity through the network structure of polyacrylic acid.…”

Section: Effects Of Contact Time For Pb(ii)mentioning

confidence: 99%

Synthesis of Acid Hydrolysis Lignin-g-Poly-(Acrylic Acid) Hydrogel Superabsorbent Composites and Adsorption of Lead Ions

Sun¹,

Ma²,

Gui-zhen³

et al. 2016

BioResources

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A series of acid hydrolysis lignin-g-poly-(acrylic acid) (AHL-g-PAA) composites was prepared by grafting acid hydrolysis lignin on the surface of the polyacrylic acid network. The results of structure analysis revealed that AHL-g-PAA had been grafted. The surface morphologies of the hydrogels were improved, as shown by scanning electron microscopy observation. The AHL-g-PAA hydrogel had high water absorption and it possessed sensitivity to external pH stimulus. This study also revealed that the adsorption capacity of AHL-g-PAA was 235 mg/g for Pb(II) ions. The adsorption kinetics data could be described by the pseudo-secondorder model, and the adsorption isotherm agrees well with the Langmuir model.

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Adsorption performances and mechanisms of the newly synthesized N,N′-di (carboxymethyl) dithiocarbamate chelating resin toward divalent heavy metal ions from aqueous media

Cited by 136 publications

References 35 publications

Adsorption studies of Pb(II) and Cu(II) ions on mesoporous carbon nitride functionalized with melamine-based dendrimer amine

Adsorption studies of Pb(II) and Cu(II) ions on mesoporous carbon nitride functionalized with melamine-based dendrimer amine

Functionalized SBA-15 mesoporous silica by melamine-based dendrimer amines for adsorptive characteristics of Pb(II), Cu(II) and Cd(II) heavy metal ions in batch and fixed bed column

Synthesis of Acid Hydrolysis Lignin-g-Poly-(Acrylic Acid) Hydrogel Superabsorbent Composites and Adsorption of Lead Ions

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