Retention of Cu(II) and Ni(II) ions by filtration through polymer-modified membranes

Lakard, Sophie; Magnenet, C.; Mokhter, Mohd Akmali; Euvrard, M.; Buron, C.C.; Lakard, Boris

doi:10.1016/j.seppur.2015.05.028

Cited by 37 publications

(10 citation statements)

References 32 publications

(48 reference statements)

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“…A really high retention rate of 96% can even be measured with a membrane functionalized with poly(allylamine) fabricated under the milder operating conditions (at the lower input energy). It is interesting to notice that the filtration efficiency of this functional membrane is comparable with those obtained via multi‐step, wet functionalization processes (in particular the Layer‐by‐Layer process) that have been previously optimized …”

Section: Resultssupporting

confidence: 62%

“…As described in previous works, the surface functionalization of polyethersulfone (PES) membranes with amino groups increases the retention of nickel(II) ions by complexation and electrostatic repulsion at low pH compared to unmodified membranes . In this study, we investigate the potential of using low‐pressure plasma polymerization of allylamine, a precursor commonly used to achieve surface modification with amine groups, to provide an alternative functionalization technique that could produce a robust functional coating, sufficiently thin to fit with pores size, via a single‐step, vapor‐phase process.…”

Section: Resultsmentioning

confidence: 98%

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Poly(allylamine) plasma polymer coatings for an efficient retention of Ni(II) ions by ultrafiltration membranes

Gall

Mokhter

Lakard

et al. 2019

Plasma Processes & Polymers

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Functional ultrafiltration membranes can be used for water decontamination. Here, we investigate the use of plasma polymerization to modify polymeric membranes with poly(allylamine) in order to filtrate aqueous solutions contaminated with Ni(II) ions. A preliminary study is performed to control growth kinetics of polymer thin films with respect to the energy provided to the precursor during deposition. Filtration experiments then enable to quantify the efficiency of the different functional coatings as for their retention of Ni(II) ions and to identify the optimal characteristics of the polymer thin films. Retention rate as high as 96% can be achieved by this single‐step functionalization process, which is very competitive compared to conventional multi‐step wet chemical functionalization techniques.

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Section: Resultssupporting

confidence: 62%

Section: Resultsmentioning

confidence: 98%

Poly(allylamine) plasma polymer coatings for an efficient retention of Ni(II) ions by ultrafiltration membranes

Gall

Mokhter

Lakard

et al. 2019

Plasma Processes & Polymers

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“…It may cause serious health risks toward human beings such as kidney damage, emphysema, hypertension, neurological effects, and even cancer. − Therefore, it is necessary to take effective measures to deal with the heavy metal pollution in wastewater. Up to now, a number of methods have been used to remove heavy metals from contaminated water, including filtration, precipitation, biological treatment, ion exchange, etc. Besides, adsorption is regarded as the most promising approach considering that it is highly effective, relatively low-cost, flexible in design and simple in operation .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Cu(II), Pb(II), and Cd(II) Ions from Acidic Aqueous Solutions by Diethylenetriaminepentaacetic Acid-Modified Magnetic Graphene Oxide

Wang

Liu

et al. 2016

J. Chem. Eng. Data

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In this study, diethylenetriaminepentaacetic acid (DTPA)-modified magnetic graphene oxide (MGO) was synthesized for removal of Cu(II), Pb(II), and Cd(II) ions from acidic aqueous solutions. The prepared DTPA/MGO composites were characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared and X-ray photoelectron spectroscopies, and zeta potential. The results showed that DTPA successfully functionalized MGO. Adsorption experiments indicated that DTPA/MGO composites exhibited excellent adsorption property in acidic aqueous solutions. The adsorption processes were applicable for the Langmuir adsorption isotherm and the pseudo-second-order model. The maximum adsorption capacities at pH 3.0 for Cu(II), Pb(II), and Cd(II) ions were 131.4, 387.6, and 286.5 mg/g, respectively. The thermodynamic studies demonstrated that adsorption processes were endothermic and spontaneous. Moreover, the DTPA/MGO composites could selectively adsorb Pb(II) from multimetal mixed systems. Adsorption–desorption results showed that the DTPA/MGO composites exhibited excellent reusability. These results suggested that DTPA/MGO composites have great potential in removing heavy metals from acidic wastewater, especially for Pb(II).

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“…ve nikel gideriminde çeşitli yöntemler kullanılabilmektedir. Bu yöntemler arasında kimyasal çöktürme [8], iyon değiştirme [9], adsorpsiyon [10], [11], sıvı membran [12], [13], çözücü ekstraksiyonu [14], membran prosesler [15] ve elektro-kimyasal arıtım [16] sayılabilir.…”

Section: Kurşununclassified

Determination of heavy metal removal potential of the Samsun Coast mussel shells

Gürel¹,

Güneş²

2018

Pamukkale J Eng Sci

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Bu çalışma kapsamında Samsun Sahilleri'nden toplanan midye kabukları kullanılarak, bu kabukların sentetik olarak hazırlanmış atıksulardan kurşun ve nikel gibi ağır metalleri giderme kapasitesi araştırılmıştır. Yapılan çalışmalarda, midye kabukları iki ayrı şekilde kullanılmıştır. Bunlardan ilkinde, ham midye kabukları sadece öğütülmüştür. Diğerinde ise, kabuklar öğütüldükten sonra sülfürik asit kullanılarak ön arıtımdan geçirilmiştir. Deneysel çalışmalarda pH, zaman, midye kabuğu miktarı gibi çeşitli değişkenler kullanılarak midye kabuklarının ağır metal giderim potansiyeli incelenmiştir. Çalışmalar 25 °C sabit sıcaklık ve 150 devir/dk. çalkalama hızında yürütülmüştür. Deneylerde kullanılan midye kabuğu boyutu 45-125 µm olarak seçilmiştir. Yapılan çalışmalar neticesinde elde edilen sonuçlara göre, ham olarak kullanılan midye kabuklarıyla yapılan deneylerde, arıtım sonrası pH değerleri dikkate alınarak, kimyasal çöktürme mekanizmasının hâkim mekanizma olduğu sonucuna varılmıştır. Ön arıtımlı (asitle muamele edilmiş) midye kabuklarının arıtım performansı incelendiğinde ise, meydana gelen arıtım mekanizmasının adsorpsiyonu temsil ettiği anlaşılmıştır. Ham midye kabukları kullanılarak, kurşun ve nikel iyonu konsantrasyonları yaklaşık olarak 100 mg/L'den sırasıyla en düşük 3.9 mg/L ve 73.62 mg/L'ye indirilmiştir. Ön arıtımlı midye kabukları ile yapılan çalışmalarda ise sadece kurşun giderimi araştırılmış ve yaklaşık 100 mg/L olan başlangıç konsantrasyonu pH 2'de 9.22 mg/L'ye düşürülmüştür. Ön arıtımlı midye kabukları için adsorbent tutma kapasitesi (q) 0.4 g/L midye kabuğu dozajında 244.74 mg/g olarak bulunmuştur.The removal capacity of mussel shells in removing heavy metals such as lead and nickel from wastewaters prepared synthetically was investigated by using the shells collected from Samsun Coasts within the scope of this work. In the studies, mussel shells were used in two different forms. In the first form, raw mussel shells were only grinded. On the other one, the mussel shells were pretreated by using sulfuric acid after grinding. The heavy metal removal potential of mussel shells was investigated using various variables such as pH, time and mussel shell dosage in experimental studies. Tests were conducted at 25 °C constant temperature and a shaking speed of 150 rpm. The size of the mussel shell used in experimental studies was chosen as 45-125 µm. It was concluded from the results of the studies carried out by using raw mussel shells that the dominant mechanism was chemical precipitation according to the pH values after treatment process. It has been understood that the treatment mechanism was adsorption when the treatment performance of the pretreated mussel shells was in question. Lead and nickel ion concentrations were reduced from approximately 100 mg/L to 3.90 mg/L and 73.62 mg/L, respectively by using raw mussel shells. In the tests conducted with pretreated mussel shells, only lead removal was studied and lead concentration of approximately 100 mg/L was decreased to 9.22 mg/L at pH 2. Adsorbent uptake...

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Retention of Cu(II) and Ni(II) ions by filtration through polymer-modified membranes

Cited by 37 publications

References 32 publications

Poly(allylamine) plasma polymer coatings for an efficient retention of Ni(II) ions by ultrafiltration membranes

Poly(allylamine) plasma polymer coatings for an efficient retention of Ni(II) ions by ultrafiltration membranes

Adsorption of Cu(II), Pb(II), and Cd(II) Ions from Acidic Aqueous Solutions by Diethylenetriaminepentaacetic Acid-Modified Magnetic Graphene Oxide

Determination of heavy metal removal potential of the Samsun Coast mussel shells

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