Sorption and filtration of Hg(II) ions from aqueous solutions with a membrane containing poly(ethyleneimine) as a complexing polymer

Bessbousse, Haad; Rhlalou, T.; Verchère, Jean‐François; Lebrun, Laurent

doi:10.1016/j.memsci.2008.09.035

Cited by 62 publications

(36 citation statements)

References 39 publications

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“…There are many sources of mercury pollution including natural processes such as volcanoes and flooding of river basins, industrial activity such as gaseous emissions of fossil fuel combustion, and industrial processes including chloralkali production, paint, pulp, fertilizer, pharmaceutical, rubber and paper industries, oil refineries and municipal solid waste treatment [14][15][16]. Commonly accepted methods for the removal of mercury from wastewater include sulfide and chelate precipitation, iron and aluminum coagulation, ion exchange, reverse osmosis, membrane filtration, electrodeposition, activated carbon adsorption, bioadsorption and photoreduction [17][18][19]. Among them, the adsorption using solid porous materials as adsorbents is considered as the most reliable, simple, efficient and cost-effective method.…”

Section: Introductionmentioning

confidence: 99%

Functionalized diatom silica microparticles for removal of mercury ions

Addai‐Mensah

Lošić

2012

Science and Technology of Advanced Materials

119

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Diatom silica microparticles were chemically modified with self-assembled monolayers of 3-mercaptopropyl-trimethoxysilane (MPTMS), 3-aminopropyl-trimethoxysilane (APTES) and n-(2-aminoethyl)-3-aminopropyl-trimethoxysilane (AEAPTMS), and their application for the adsorption of mercury ions (Hg(II)) is demonstrated. Fourier transform infrared spectroscopy and x-ray photoelectron spectroscopy analyses revealed that the functional groups (-SH or -NH 2 ) were successfully grafted onto the diatom silica surface. The kinetics and efficiency of Hg(II) adsorption were markedly improved by the chemical functionalization of diatom microparticles. The relationship among the type of functional groups, pH and adsorption efficiency of mercury ions was established. The Hg(II) adsorption reached equilibrium within 60 min with maximum adsorption capacities of 185.2, 131.7 and 169.5 mg g −1 for particles functionalized with MPTMS, APTES and AEAPTMS, respectively. The adsorption behavior followed a pseudo-second-order reaction model and Langmuirian isotherm. These results show that mercapto-or amino-functionalized diatom microparticles are promising natural, cost-effective and environmentally benign adsorbents suitable for the removal of mercury ions from aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

Functionalized diatom silica microparticles for removal of mercury ions

Addai‐Mensah

Lošić

2012

Science and Technology of Advanced Materials

119

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“…Desorption of metal ions is typically performed in concentrated nitric acid. However, as nitric acid is an oxidizing reagent and the membrane may be degraded, some researches choose EDTA, a potent complexing agent, for desorption of metal ions [23,25]. Desorption of metal ions from the PVA doped PEI nanofibrous membranes was carried out in 0.05 M EDTA, 0.05 M HCl, and 0.05 M HNO 3 solution, respectively.…”

Section: Regeneration Of the Pva Doped Pei Nanofibrous Membranesmentioning

confidence: 99%

“…PEI has high affinity for various metal ions and can be used as a chelating agent for the removal of heavy metal cations present in wastewater [17][18][19][20][21][22][23], and the interactions between metal ions and polymers in solutions have been reviewed [19].…”

Section: Introductionmentioning

confidence: 99%

Poly(ethyleneimine) nanofibrous affinity membrane fabricated via one step wet-electrospinning from poly(vinyl alcohol)-doped poly(ethyleneimine) solution system and its application

Wang

Min

Liu

et al. 2011

Journal of Membrane Science

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“…The search for an efficient and cheaper method for metal ion removal leads to the development of polymer sorbents, which can form complexes with metal ions. In recent years, several such sorbents were developed and used in the recovery of metal ions present in aqueous solutions . The main advantages of these adsorbents are the easy loading, desorption of ions using simple chemicals and reusability.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Complexation of 3d Transition Metal Ions with NR/PEO Block Copolymer in Aqueous Medium

Mrudula

Nair

2020

Polymer Engineering & Sci

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Polyethylene oxide (PEO) was chemically linked to natural rubber (NR) segments to form a block copolymer (BC), which proved to be a suitable material for complexing with selected first row transition metal ions in aqueous solution through batch adsorption method under noncompetitive mode. Optimum conditions for sorption were found to be 20 mmol/L initial concentration, pH at 6, ambient temperature, and 24 h. The order of decreasing adsorption capacity obtained is Mn(II) > Co(II) > Zn(II) > Ni(II) > Cu(II) > Fe(III). Freundlich isotherm shows the best fit indicating that the adsorption is of heterogeneous in nature. The complexation follows pseudo second‐order kinetics. Exothermic character of the complexation was confirmed by thermodynamic study. For all metal ions, the standard free energy change values are negative for the different temperatures studied, which confirms the spontaneous character of the process. At ambient temperature, the free energy change lies between −2.35 and − 7.83 kJ/mol for all complexes. Values of activation energy for all the metal ion complexation is within the range 11–25 kJ/mol, which indicates chemical interaction via activated physico–chemical adsorption. Variation in stability constant of the complexes also follows the same order as given above. POLYM. ENG. SCI., 60:661–672, 2020. © 2020 Society of Plastics Engineers

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Sorption and filtration of Hg(II) ions from aqueous solutions with a membrane containing poly(ethyleneimine) as a complexing polymer

Cited by 62 publications

References 39 publications

Functionalized diatom silica microparticles for removal of mercury ions

Functionalized diatom silica microparticles for removal of mercury ions

Poly(ethyleneimine) nanofibrous affinity membrane fabricated via one step wet-electrospinning from poly(vinyl alcohol)-doped poly(ethyleneimine) solution system and its application

Studies on the Complexation of 3d Transition Metal Ions with NR/PEO Block Copolymer in Aqueous Medium

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