Synthesis and characterization of ion-imprinted resin based on carboxymethyl cellulose for selective removal of UO22+

Synthesis and characterization of uranyl ion-imprinted microspheres based on amidoximated modified alginate

“…Upon grafting, the grafted PAN-g-AG displayed a new sharp crystallinity peak at 2Â = 17 • (Fig. 3b), which is related to (1 1 0) and (2 0 0) diffraction panels of the PAN grafted chains [4]. Moreover, after conversion of the grafted -CN groups into H 2 N-C N-OH, the crystalline profile of PAO-g-AG exhibited an obvious lowering in the previously mentioned crystalline peaks (Fig.…”

“…However, the IIPs manufactured by conventional entrapment methods possess several drawbacks such as the large diffusion barrier, complicated manufacturing process and deformation of some recognition sites as a result of the mechanical crushing and grinding [19]. In order to effectively reduce these disadvantages, several studies were performed to develop surface ion-imprinted polymers, where the active recognition sites were created on the surface of a suitable support [4,18,19,30,31].…”

“…Hexavalent uranyl ion (UO 2 2+ ) regarded as the most stable form in aqueous medium, through this form, uranium can easily coordinate to the plasma protein in blood and accumulate in the sensitive body organs such as liver, kidneys, lung and even bones, which will subsequently lead to a sever diseases like renal failure or cancer [1][2][3]. For these reasons, and in view of the environmental risks, several attempts were performed for efficient extraction of uranyl ions from the contaminated aqueous media [4][5][6][7].…”

Adsorptive features of poli(acrylic acid-co-hydroxyapatite) composite for $$ {{\text{UO}}_{ 2}}^{{ 2 { + }}} $$ UO 2 2 +

“…Thermodynamic parameters such as enthalpy change (DH°), Gibbs free energy change (DG°) and entropy change (DS°) were evaluated from experiments at different temperatures [45], using the following equations:…”

Carboxymethyl Cellulose-Graft-Polyacrylic Acid Hydrogel: A Cost Effective and Reusable Adsorbent for Cu2+ .

“…Recently, a great deal of attention has been directed towards the production of bioadsorbents from natural polymers, such as starch (9) , lignin (10) , cellulose (1,8,11,12) , chitin/chitosan (13,14) and agricultural wastes (15) . These bioadsorbents are renewable and have many advantages over traditional adsorbents, such as cost-effective, biodegradability, non toxicity, environmentally friendly materials, hydrophilicity and good reusability (15)(16)(17) .…”