Removal of thorium from water using modified magnetite nanoparticles capped with rosin amidoxime

Atta, Ayman M.; Akl, Zeinab F.

doi:10.1016/j.matchemphys.2015.07.038

Cited by 45 publications

(14 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the E% values of the cryogel composite are more than that of the cryogel when the MB concentration reaches more than 4.69 mmol L −1 . These data indicate that the porous structure of Na‐AMPS/SS‐Na increases the interaction between negative charges of sulfonate groups of cryogel and positive charges of MB cationic dye …”

Section: Resultsmentioning

confidence: 74%

In situ preparation of magnetic Fe₃O₄.Cu₂O.Fe₃O₄/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

Atta

Al‐Lohedan

Tawfeek

et al. 2018

Polymer International

View full text Add to dashboard Cite

Magnetic nanocomposites have attracted great attention as adsorbents for the removal of water pollutants, which respond to an external magnet that is used to remove both pollutants and composite nanomaterial traces from water. They are environmentally friendly and effective adsorbents for water treatment. In this respect, a simple in situ preparation method was used to prepare cryogel powder composite based on Fe 3 O 4 .Cu 2 O.Fe 3 O 4 nanomaterials. The ionic cryogel based on 2-acrylamido-2-methylpropane sulfonate sodium salt and styrene sulfonate sodium salt was prepared by crosslinking polymerization at low temperature. The new magnetic nanoparticles based on Fe 3 O 4 .Cu 2 O.Fe 3 O 4 were successfully prepared inside the cryogel networks by a simple reduction-coprecipitation method based on reaction of Fe 3+ with sodium sulfite and Cu 2+ in the presence of hydroxylamine and ammonia solution. The thermal stability, accurate Fe 3 O 4 .Cu 2 O.Fe 3 O 4 content, magnetic properties, crystal lattice structure, particle sizes and morphology of the prepared cryogel composite were evaluated. The optimum conditions such as pH, contact time, adsorbate concentrations, adsorption equilibrium and adsorption kinetics were investigated to determine the efficiency of the prepared composite as an adsorbent to remove toxic methylene blue (MB) pollutant from aqueous solution. The data for MB adsorption confirmed the high ability of the prepared composite to remove more than 4.696 mmol L −1 of MB from water during 6 min. The regeneration and reuse experiments showed excellent data for the synthesized new dye as an effective adsorbent for water treatment.

show abstract

Section: Resultsmentioning

confidence: 74%

In situ preparation of magnetic Fe₃O₄.Cu₂O.Fe₃O₄/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

Atta

Al‐Lohedan

Tawfeek

et al. 2018

Polymer International

View full text Add to dashboard Cite

show abstract

“…[10][11][12][13][14][15][16] More recently, the use of adsorbents with a combination of porosity and magnetic properties has been proposed as the most effective magnetic separation technique for applying nanocomposites for water treatment and oil spill collection. [17][18][19][20][21] Hydrophobic magnetic nanomaterials have also been proposed to control water pollution from crude oil spills due to their excellent dispersion in crude oil and good response to an external magnetic eld. Different methods have been used to prepare magnetic nanomaterials based on magnetite, such as co-precipitation, microemulsion, thermal decomposition, and hydrothermal synthesis.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and application of monodisperse hydrophobic magnetite nanoparticles as an oil spill collector using an ionic liquid

2017

View full text Add to dashboard Cite

show abstract

“…networks as reported in previous work. [31][32][33] The mechanism for formation of magnetic cryogels is represented in Fig. 1.…”

Section: Adsorption and Desorption Measurements Of Cryogel Adsorbentsmentioning

confidence: 99%

“…It is expected that the better magnetite dispersion and porous ionic magnetite cryogel network morphology will increase the removal rates of cationic organic dyes from water pollutants. [31][32][33] On the other hand, Na-AMPS cryogels are selected to adsorb water pollutants due to their negative surface charge and the presence of sulfonate and amide groups that can form complexes with the pollutants.…”

Section: Cryogels and Their Magnetite Composites As Mb Dye Adsorbentsmentioning

confidence: 99%

Removal of organic water pollutant using magnetite nanomaterials embedded with ionic copolymers of 2‐acrylamido‐2‐methylpropane sodium sulfonate cryogels

Al‐Hussain

Ezzat

Gaffer

et al. 2017

Polymer International

View full text Add to dashboard Cite

Magnetite cryogel composites as macroporous crosslinked matrices have received wide attention and attract much interest in the water purification and desalination industry. They can be used to produce effective adsorbents with high adsorption rate, capacity and desorption for water pollutants. In this work, the incorporation of magnetite nanoparticles into cryogels by the in situ method is proposed to increase the dispersion of nanoparticles in the gel composites and to produce effective magnetic materials with high adsorption capacities. Ionic sodium‐2‐acrylamido‐2‐methylpropane sulfonate (Na‐AMPS) monomer was selected to prepare cryogels as the homopolymer or copolymers with 2‐hydroxyethyl methacrylate (HEMA) or N‐vinyl pyrrolidone (VP) by the crosslinking polymerization technique in the frozen state. Magnetite nanoparticles were introduced into the cryogel by the in situ co‐precipitation method after introducing iron cations into the cryogel networks. The surface morphologies, crystal structure, magnetite content, thermal stability and magnetic properties were determined for the cryogels and their magnetite composites. The magnetite cryogel composites show significantly enhanced methylene blue dye removal in short times with higher adsorption efficiencies and good regeneration to form an effective adsorbent for water treatment. © 2017 Society of Chemical Industry

show abstract

Removal of thorium from water using modified magnetite nanoparticles capped with rosin amidoxime

Cited by 45 publications

References 49 publications

In situ preparation of magnetic Fe₃O₄.Cu₂O.Fe₃O₄/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

In situ preparation of magnetic Fe₃O₄.Cu₂O.Fe₃O₄/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

Synthesis and application of monodisperse hydrophobic magnetite nanoparticles as an oil spill collector using an ionic liquid

Removal of organic water pollutant using magnetite nanomaterials embedded with ionic copolymers of 2‐acrylamido‐2‐methylpropane sodium sulfonate cryogels

Contact Info

Product

Resources

About

Removal of thorium from water using modified magnetite nanoparticles capped with rosin amidoxime

Cited by 45 publications

References 49 publications

In situ preparation of magnetic Fe3O4.Cu2O.Fe3O4/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

In situ preparation of magnetic Fe3O4.Cu2O.Fe3O4/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

Synthesis and application of monodisperse hydrophobic magnetite nanoparticles as an oil spill collector using an ionic liquid

Removal of organic water pollutant using magnetite nanomaterials embedded with ionic copolymers of 2‐acrylamido‐2‐methylpropane sodium sulfonate cryogels

Contact Info

Product

Resources

About

In situ preparation of magnetic Fe₃O₄.Cu₂O.Fe₃O₄/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant

In situ preparation of magnetic Fe₃O₄.Cu₂O.Fe₃O₄/cryogel nanocomposite powder via a reduction–coprecipitation method as adsorbent for methylene blue water pollutant