Uranyl ion adsorption using novel cross-linked maleic anhydride–allyl propionate–styrene terpolymer

Akperov, E. O.; Maharramov, Abel; Akperov, O.G.

doi:10.1016/j.hydromet.2009.09.010

Cited by 15 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A minimum of 75 mg of IIP material was required for the quantitative removal of uranium from 25 mℓ of aqueous phase. Akperov et al (2010) observed that by increasing the sorbent weight the sorption degree of the uranyl ions also increased and reached 83.1%-85.0% at the weight of sorbent 0.125-0.15 g. The results indicate that for nearcomplete extraction of uranyl ions from aqueous solutions, a quantity of 125 mg sorbent is required, which was much higher than that indicated by this study.…”

Section: +contrasting

confidence: 50%

See 1 more Smart Citation

Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe3O4 for selective extraction of hexavalent uranium

Tavengwa¹,

Cukrowska²,

Chimuka³

2014

WSA

View full text Add to dashboard Cite

A selective and reliable method for the extraction of trace quantities of U(VI) by the use of a magnetic U(VI) ion-imprinted polymer (IIP) was developed. In this study, oleic acid (OA) coated magnetite nano-particles were incorporated into the cross-linked polymeric matrix of the selective sorbent, in order to gain the physical advantages of separating the polymers. Many physico-chemical factors influence the adsorption process; uranyl ion uptake ability based on these parameters was investigated. The optimum parameters obtained were sample pH 4, 50 mg of the magnetic polymer, a contact time of 45 min and an initial U(VI) concentration of 2 mg·ℓ , respectively. The adsorption behaviour of U(VI) in the presence of other competing metal ions onto the cross-linked magnetic polymers was also examined in binary mixtures and the order of selectivity was found to be U(VI) > Pb(VI) > Ni(II). The resulting magnetic nano-composite polymers were found to be stable up to the sixth cycle of use and reuse. The Freundlich adsorption model was used for the mathematical description of the adsorption equilibrium and the adsorption kinetic data fitted the pseudo-first-order model with R 2 > 0.92.

show abstract

Section: +contrasting

confidence: 50%

“…In the literature, a number of studies on the uptake of uranium by application of polymeric sorbents are reported (e.g. James et al, 2009;Akperov et al, 2010;Singh and Mishra, 2009). An earlier attempt was also made by our research group to extract uranium from wastewaters by application of IIP (Pakade et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe3O4 for selective extraction of hexavalent uranium

Tavengwa¹,

Cukrowska²,

Chimuka³

2014

WSA

View full text Add to dashboard Cite

show abstract

“…When the acidity decreases, the sorption increases and reaches a maximum at a pH of 7 (61.3 %). At higher pH values (pH 8 to 11), the percentage removal of uranyl ions decreases, owing to the formation of insoluble UO 2 (OH) 2 and the hydrolysis of uranyl ions forming complex hydroxy anions such as UO 2 (OH) 3 − , UO 2 (OH) 4 2− , (UO 2 ) 3 (OH) 7 − , (UO 2 ) 3 (OH) 8 2− , (UO 2 ) 3 (OH) 10 4− , and (UO 2 ) 3 (OH) 11 5− . , …”

Section: Resultsmentioning

confidence: 99%

“…The . 54,55 The possible coordination mechanism for the interaction between uranyl ions and 3 may be illustrated by Figure 10. The prepared sorbent provides O-, S-, and N-donor ligands with which uranyl ions readily form complexes.…”

Section: àmentioning

confidence: 99%

Synthesis of A New Calixarene Derivative and Its Immobilization Onto Magnetic Nanoparticle Surfaces for Excellent Extractants Toward Cr(VI), As(V), and U(VI)

Sayın¹,

Yılmaz²

2011

J. Chem. Eng. Data

View full text Add to dashboard Cite

This article describes the synthesis of 5,11,17,23-tetra-tert-butyl-25,27-di(benzhydrazidylmethoxy)-26,28-dihydroxycalix[4]arene (3) through the treatment of a dialkyl bromide derivative of p-tert-butylcalix[4]arene with benzhydrazide under mild reaction conditions. 5,11,17,arene (3) was characterized by a combination of FTIR, 1 H NMR, and elemental analyses. The macrocyclic building block of the calixarene derivative (3) has been immobilized on silica-based magnetic nanoparticles to receive a new magnetic calixarene derivative (BHCB-MN). 5,11,17,23-Tetra-tert-butyl-25,27-di(benzhydrazidylmethoxy)-26,28-dihydroxy-calix[4]arene immobilized silica-based magnetic nanoparticles (BHCB-MN) were characterized by a combination of Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and thermogravimetric analyses (TGA). Studies regarding the removal of arsenate, dichromate, and uranyl ions from aqueous solutions have also been carried out by using these extractants in both liquidÀliquid extraction and solidÀliquid sorption experiments. The extraction results depict that these new calixarene derivatives have good extraction abilities toward dichromate/arsenate and uranyl ions.

show abstract

“…49 The obtained values of the Langmuir equation parameters specify a high enough adsorption activity of the synthesized sorbent towards uranyl ions. 50 Based on the Langmuir equation, Q max values of UO 2 2+ onto PVA/E, PVA/CNTs/E and PVA/CNTs/SDS/E were 121.95, 172.41 and 232.55 mg g À1 respectively, indicating that the adsorption capacity of the prepared nanocomposite has the following order PVA/E > PVA/CNTs/E > PVA/CNTs/SDS/E. This can be explained as the following: adding MWCNTs to PVA increases the functional groups in the composites consequently the adsorption capacity will increase.…”

Section: +mentioning

confidence: 99%

Uranium(vi) adsorption from aqueous solutions using poly(vinyl alcohol)/carbon nanotube composites

Abdeen

Akl

2015

RSC Adv.

View full text Add to dashboard Cite

show abstract

Uranyl ion adsorption using novel cross-linked maleic anhydride–allyl propionate–styrene terpolymer

Cited by 15 publications

References 14 publications

Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe<sub>3</sub>O<sub>4</sub> for selective extraction of hexavalent uranium

Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe<sub>3</sub>O<sub>4</sub> for selective extraction of hexavalent uranium

Synthesis of A New Calixarene Derivative and Its Immobilization Onto Magnetic Nanoparticle Surfaces for Excellent Extractants Toward Cr(VI), As(V), and U(VI)

Uranium(vi) adsorption from aqueous solutions using poly(vinyl alcohol)/carbon nanotube composites

Contact Info

Product

Resources

About