A Membrane‐Supported Bifunctional Poly(amidoxime‐ethyleneimine) Network for Enhanced Uranium Extraction from Seawater and Wastewater

Green Synthesis of Molecularly Imprinted Polymers for Dispersive Magnetic Solid-Phase Extraction of Erythrosine B Associated with Smartphone Detection in Food Samples

“…The imprinting factor (IF) obtained was 3.0 ± 0.05, demonstrating the superior performance of the MIP with respect to NIP. The equilibrium data were fitted using the Langmuir and Freundlich isotherms [ 30 , 31 , 32 ]; the obtained parameters are summarized in Table 1 .…”

Heterometallic Uranyl (Hydroxyethyl)iminodiacetic Acid (Heidi) Complexes: Molecular Models for U(VI) Uptake in Complex Media

“…A decrease in the U(VI) loading in the presence of organic ligands (3.51 mg/L dissolved organic carbon) was also reported by Kuo et al, [8] where they observed a reduction of approximately 40 % compared to the U(VI) control at pH 7. In a separate study, Ahmad et al [28] reported a reduction of 11.1 % U(VI) in the presence of 25 mg/L of humic acid at pH 5.5. The differences reported in these two studies may be due to varability in the exact processing of the amidoximated mats as Ahmad et al [28] suggested that the higher hydrophobicity led to lessened issues with fouling.…”

“…In a separate study, Ahmad et al [28] reported a reduction of 11.1 % U(VI) in the presence of 25 mg/L of humic acid at pH 5.5. The differences reported in these two studies may be due to varability in the exact processing of the amidoximated mats as Ahmad et al [28] suggested that the higher hydrophobicity led to lessened issues with fouling. However, pH is also a significant factor in the adsorption process [5a,27] with the formation of U(VI) carbonate and hydrolysis products at higher pH values.…”

Uranium extraction from seawater: material design, emerging technologies and marine engineering

“…Another intriguing strategy to promote the binding ability of AO-based adsorbents towards uranyl ions is the introduction of collaborative functionalities. 46,61,69,87,96–100 For instance, bifunctional AO-based fibers were prepared by attaching various auxiliary diethylenetriamine (EDTA) ligands on commercially-available PAN fibers based on the amination chemistry, followed by the conversion of the residual nitrile species to AO through hydroxylamine treatment. 96 Adsorption studies were carried out in filtered environmental seawater in a flow-through column at PNNL.…”