Preparation of elastic diglycolamic-acid modified chitosan sponges and their application to recycling of rare-earth from waste phosphor powder

Rational fabrication of a new ionic imprinted carboxymethyl chitosan-based sponge for efficient selective adsorption of Gd(iii)

“…Referring to previous reports, this structure could improve the surface area and greatly help the compressible property of adsorbents. 25,26 Fig. 2(a) and (b) reect that the PEI-CMC-IIS and PEI-CMC-NIIS possess similar structure, suggesting the IIT causes no related change in morphology.…”

Mild hydrothermally treated brewer's spent grain for efficient removal of uranyl and rare earth metal ions

“…The obtained adsorption capacity of ABSG for the selected rare earth metal ions is also higher than that of graphene oxide-melamine composites (25.04 mg g À1 for La 3+ , 26.68 mg g À1 for Eu 3+ and 20.88 mg g À1 for Yb 3+ ) 64 and graphene oxide-tris(4-aminophenyl)amine composites (10.52 mg g À1 for La 3+ , 30.88 mg g À1 for Yb 3+ ) 8 reported in the literature. Although some adsorbents like elastic diglycolamic-acid modied chitosan sponges (CSs-DGAA) 65 and graphene oxide-activated carbon felt composite 18 show higher adsorption capacity in case of Eu 3+ (79 mg g À1 ) and UO 2 2+ (298 mg g À1 ), it should be taken into consideration that the preparation of synthetic adsorbents is oen costly, complicated and environmentally unsustainable. On the contrary, the preparation of ABSG is simple and environmental benign without harmful chemicals and complicated process.…”

Highly selective and sensitive probes for the detection of Cr(vi) in aqueous solutions using diglycolic acid-functionalized Au nanoparticles

“…3B); this was consistent with our earlier studies. 48,49 However, as the heavy metal ions usually exist in acidic solutions and the pH value of 4.0 can result in the precipitation of some heavy metal ions and their interference with the performance of the sensors, Fig. 1 The schematic of the probe preparation and the sensing process.…”