Water-soluble polymer–metal ion interactions

Rivas, Bernabé L.; Pereira, Eduardo; Moreno‐Villoslada, Ignacio

doi:10.1016/s0079-6700(02)00028-x

Cited by 419 publications

(155 citation statements)

References 157 publications

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“…The variables that might affect the polymer-metal ion interactions were intrinsic to the polymer: nature of atoms in the backbone chain, nature of the functional groups attached to the backbone, structure and copolymer composition, molecular weight and polydispersity, distance between functional groups and backbone, degree of branching, etc. ; other variables might be extrinsic to the polymer: for example pH, ionic strength, nature and charge of the metal ions, temperature, or nature of the counterion of the metal ion [28]. The sorption of cadmium by microbial biopolymers was significantly lower than cadmium sorption in solution.…”

Section: Interactions Of Microbial Biopolymers With Cadmium In Soil Smentioning

confidence: 99%

“…The polymer interacted with metal ion by binding functional groups of two different macromolecules, which supplied "acidic" functional groups and "basic" groups, respectively. Thus, the process of metal binding with mixed biopolymers would have promising application with regards to biological reactions [28]. The variables that might affect the polymer-metal ion interactions were intrinsic to the polymer: nature of atoms in the backbone chain, nature of the functional groups attached to the backbone, structure and copolymer composition, molecular weight and polydispersity, distance between functional groups and backbone, degree of branching, etc.…”

Section: Interactions Of Microbial Biopolymers With Cadmium In Soil Smentioning

confidence: 99%

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Phytoextraction of Cadmium from Contaminated Soil Assisted By Microbial Biopolymers

Fukushi¹

2012

Agrotechnol

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Heavy metal contaminated soils remain as a challenging and essential task for environmental engineering. Phytoremediation (plant-based remediation) is effective for the mitigation of large area surface soil contamination, but needs long time and the efficiency is not high. Chemical agents could increase heavy metal bioavailability in soil and bring greater accumulation in plants, but also pose risks to soil, plant growth and ground water environment. In this study, microbial biopolymers, mainly composed of protein and polysaccharide, were obtained from non-induced, copper-induced and cadmium-induced activated sludge culture, and named as ASBP, ASBPCu and ASBPCd, respectively. The influence of microbial biopolymers on phytoextraction of cadmium in contaminated soil was investigated. Microbial biopolymers, compared to other agents, were found to be more effective in improving the phytoextraction of cadmium from soil. In ASBP, ASBPCu and ASBPCd, the cadmium content in plants was found to be 1.52, 1.63 and 1.33 μg (1.9, 2.0 and 1.6 times of the control), respectively. It was also found that in the presence of microbial biopolymers ASBP, ASBPCu and ASBPCd, 10.9%, 26.2% and 13.7% of exchangeable cadmium fraction was extracted from soil matrix to plant or liquid, higher than the control test (4.3%). Microbial biopolymers were more effective in improving cadmium accumulation in plants than other chemical agents. Owing to the benign nature, ease of production, and cadmium binding feasibility, microbial biopolymers may find utility as a new environmentally safe extracting agent for improving phytoextraction of cadmium from contaminated soil.

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Section: Interactions Of Microbial Biopolymers With Cadmium In Soil Smentioning

confidence: 99%

Section: Interactions Of Microbial Biopolymers With Cadmium In Soil Smentioning

confidence: 99%

Phytoextraction of Cadmium from Contaminated Soil Assisted By Microbial Biopolymers

Fukushi¹

2012

Agrotechnol

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“…Possessing many polar carboxyl groups in its structure, poly(acrylic acid) (PAA) has shown a great ability to form strong complexes with metal ions in solution [7,8,[27][28][29]. The high water solubility and weak structural stability of PAA, however, hinders application of this polymer to remove heavy metal ions from wastewater.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Kinetics and thermodynamics of Pb sorption onto bentonite and poly(acrylic acid)/bentonite hybrid sorbent

Rafiei

Shirvani

Ogunseitan

2016

Desalination and Water Treatment

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“…The stock 5 mg mL -1 polymer solution was prepared by dissolving an exact weighted sample of each polymer in deionized water Polydisperse substances. Poly(acryloyl morpholine-co-2-acrylamido-2-methyl-1-propane sulfonic acid) and poly[2-acrylamido-2-methyl-1-propane sulfonic acid-co-(3-acryloylamidopropyl) trimethylammonium nitrate) were synthesized by radical polymerization as previously described [15,16]. Molar masses for both polymers were determined means light scattering, using a Wyatt Dawn DSP-F photometer with a argon laser, and a interferometric refractometer Wyatt Optilab 903.…”

Section: Reagentsmentioning

confidence: 99%

Online Multi-Stage Membrane Filtration of Synthetic Polydispersed Water-Soluble Polymers With Uv Visible Absorption as a Mode for Their Detection

Rivas¹,

Shkinev

Dzherajan³

et al. 2010

J. Chil. Chem. Soc.

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This paper reports the application of online membrane filtration with UV visible absorption as a mode of polydispersed substances detection for poly(acryloyl morpholine-co-2-acrylamido-2-methyl-1-propane sulfonic acid), poly[2-acrylamido-2-methyl-1-propane sulfonic acid-co-(3-acryloylamidopropyl) trimethylammonium nitrate), and poly(vinyl alcohol-co-crotonic acid) 10 % of crotonic acid which can be used in medicine and technology. The mass balance in all the cases was not below 100 ± 7 %. The calibration curve are linear at l opt. 245, 230, and 220 nm in the interval 0.1-4.0 mg/mL, 0.2-3.0 mg/mL and 0.2-6.0 mg/mL, respectively.It was also used the combination of microfiltration, MF, and gel permeation chromatography, GPC to provide more complete information about the molecular weight distribution of the obtained fractions.

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Water-soluble polymer–metal ion interactions

Cited by 419 publications

References 157 publications

Phytoextraction of Cadmium from Contaminated Soil Assisted By Microbial Biopolymers

Phytoextraction of Cadmium from Contaminated Soil Assisted By Microbial Biopolymers

Kinetics and thermodynamics of Pb sorption onto bentonite and poly(acrylic acid)/bentonite hybrid sorbent

Online Multi-Stage Membrane Filtration of Synthetic Polydispersed Water-Soluble Polymers With Uv Visible Absorption as a Mode for Their Detection

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