Synthesis, characterization and removal of lead from water samples using lead-ion imprinted polymer

Khajeh, Mostafa; Heidari, Zaman Shamohammadi; Sanchooli, Esmael

doi:10.1016/j.cej.2010.12.018

Cited by 81 publications

(25 citation statements)

References 19 publications

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“…Cd(II) which was known to be extremely toxic [1][2][3], accumulates in humans, mainly in the kidneys for a relatively long time and can also replace Zn(II) ions in some metallo-enzymes, thereby affecting the enzyme activity [4]. The higher concentrations of Pb(II) in the ecosystem have a substantial impact on the environment and Pb(II) poisoning causes various severe health problems [5][6][7]. Therefore, removal of these toxic metals from wastewaters prior to discharge into water and soil bodies is necessary in terms of environment and economic consideration.…”

Section: Introductionmentioning

confidence: 99%

Buffalo weed (Ambrosia trifida L. var. trifida) biochar for cadmium (II) and lead (II) adsorption in single and mixed system

Yakkala

Roh

et al. 2013

Desalination and Water Treatment

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A B S T R A C TBiochars (BWBC 300, BWBC 500 and BWBC 700) derived from buffalo weed (Ambrosia trifida L. var. trifida) at different pyrolysis temperatures of 300, 500 and 700˚C were investigated for the removal of Cd(II) and Pb(II) ions from aqueous solutions. The physicochemical properties of the biochars were studied using FTIR, scanning electron microscopy (SEM), X-ray diffraction, Brunauer, Emmett and Teller surface area, cation exchange capacity and energy dispersive X-ray analysis. The adsorption at solution pH = 5 could be well described by Freundlich model for Cd(II) and Pb(II) in their single and mixed system with R 2 P 0.95. The maximum adsorption capacities of the biochar BWBC 700 from the Langmuir equation were found to be 11.63 and 333.33 mg g À1 for Cd(II) and Pb(II), respectively. Pseudo-second-order kinetic model was fitted well in describing the adsorption kinetics of Cd(II) and Pb(II) onto the biochar BWBC 700. About 0.02 mol L À1 disodium salt of EDTA was able to desorb Cd(II) and Pb(II) from the biochar BWBC 700 with an approximately 63.5% and 96.8% desorption yield, respectively. Ion exchange and surface complexation found to be the main mechanisms involved in the adsorption process. The developed biochar derived from Ambrosia trifida L. var. trifida found to be a low cost adsorbent and could be used for the effective removal of Cd(II) and Pb(II) in waste waters.

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Section: Introductionmentioning

confidence: 99%

Buffalo weed (Ambrosia trifida L. var. trifida) biochar for cadmium (II) and lead (II) adsorption in single and mixed system

Yakkala

Roh

et al. 2013

Desalination and Water Treatment

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“…Then, template ions are removed and imprinted cavities are created. The cavities provide tailor-made binding sites for the template ions removed from the ion-imprinted polymer [13,14]. So, IIPs are effective and selective adsorbents for their respective imprinting ions [13,15,16].…”

Section: Introductionmentioning

confidence: 99%

Selective adsorption of Zn2+ on surface ion-imprinted polymer

Qiao

et al. 2016

Desalination and Water Treatment

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A B S T R A C TA new type of Zn 2+ ion-imprinted polymer (Zn 2+ -IIP) was synthesized on the surface of attapulgite, displaying high affinity and selectivity to Zn 2+ . Fourier transform infrared spectra (FTIR) revealed Zn 2+ -IIP to be an organic-inorganic hybrid polymer, with Zn 2+ imprinted cavities formed by CTS groups and connected to the surface of the attapulgite by A-187 cross-linked network. The adsorption kinetic investigation showed that the adsorption of Zn 2+ on Zn 2+ -IIP was a pseudo-second-order process. The maximum adsorption capacities of Zn 2+ were 0.536, 0.665, 0.715, and 0.722 meq/g at 288, 298, 308, and 318 K, respectively, where the activation energy, E a , was evaluated as 23.8 kJ/mol. By thermodynamic study, ΔH˚and ΔS˚of the adsorption were determined as 30.862 kJ/mol and 108.664 J/mol K, respectively, while the negative ΔG˚decreased with rising temperatures, indicating that the adsorption process was feasible and spontaneous. The adsorption selectivity of the Zn 2+ -IIP was also investigated via competitive adsorption of Zn 2+ , Cd 2+ , Cs + , Co 2+ , Ba 2+ , Sr 2+ , and Pb 2+ from a mixture, demonstrating that Zn 2+ -IIP had the capability of recognizing Zn 2+ with high affinity and selectivity. The study of multi adsorption-desorption cycles showed that the Zn 2+ -IIP can be reused many times without a significant decrease in the adsorption capacity.

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“…In recent years, MIPs as the solid sorbents with high selectivity have been widely used in separation, purification, and determination areas. But beyond that, MIPs have been also used in the water environmental protection and control area to effectively remove those toxic substances (1)(2)(3)(4)(5). The conventional method to prepare MIPs is entrapment way, and this method has some disadvantages including time-consuming and complicated preparation process, less recognition sites inside matrices particles obtained via crushing and grinding the imprinted polymeric monolith, and greater diffuse barrier for the template molecules coming from thick matrices, leading to poor binding capacity and lower binding kinetic of MIPs towards the template molecules (6,7).…”

Section: Introductionmentioning

confidence: 99%

Preparation of Acid Dye Molecule Surface-Imprinted Material for Effective Removal of Acid Dyes from Water and Study on its Molecule Recognition Performance

Gao

Chen

Qiao

et al. 2014

Separation Science and Technology

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An acid dye molecule surface-imprinted material was prepared successfully for the dye removal from water by using a novel molecular surface-imprinting technique. The cationic monomer acryloyloxyethyl trimethyl ammonium chloride (DAC) was used as functional monomer, and sunset yellow was used as a model compound of water-soluble acid dyes. In the aqueous solution, DAC molecules were combined around sunset yellow molecules via electrostatic interaction. The graft/cross-linking copolymerization of DAC and the crosslinker on SiO 2 particles was initiated by a surface-initiating system of -NH 2 /S 2 O 8 2-, resulting in the sunset yellow molecule surface-imprinted material MIP-PDAC/SiO 2 . MIP-PDAC/SiO 2 possesses special recognition property for sunset yellow.

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Synthesis, characterization and removal of lead from water samples using lead-ion imprinted polymer

Cited by 81 publications

References 19 publications

Buffalo weed (Ambrosia trifida L. var. trifida) biochar for cadmium (II) and lead (II) adsorption in single and mixed system

Buffalo weed (Ambrosia trifida L. var. trifida) biochar for cadmium (II) and lead (II) adsorption in single and mixed system

Selective adsorption of Zn2+ on surface ion-imprinted polymer

Preparation of Acid Dye Molecule Surface-Imprinted Material for Effective Removal of Acid Dyes from Water and Study on its Molecule Recognition Performance

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