The ability of organic ligands to change the structure of metal-organic frameworks (MOFs) in nature and influence their adsorption efficiency for arsenic species is enormous. The current work was designed to investigate the adsorption performance of cerium-based MOFs with tunable structures through the use of organic ligands (Ce-MOF-66 and Ce-MOF-808) towards arsenic species from water.… Continue reading Tuning the structure of cerium-based metal-organic frameworks for efficient removal of arsenic species: The role of organic ligands
Environment-friendly chitosan-modified-poly(vinyl alcohol) or (PVA)/sodium alginate (SA) electrospun nanofiber membrane (ENM) adsorbent was prepared for the removal of As(III) from an aqueous solution. The chitosan(CS)-functionalized-PVA/SA ENM (CS-f-PVA/SA) was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and X-Ray diffraction (XRD). The CS-f-PVA/SA ENM showed the maximum As (III) adsorption… Continue reading Chitosan-functionalized sodium alginate-based electrospun nanofiber membrane for As (III) removal from aqueous solution
Organic ligands have great potential to modulate the structure of iron oxides mineral in the natural environment and affect those minerals’ adsorption performances for arsenic species. This study was designed to examine the adsorption potential of goethite quantum dots impregnated graphene oxide hybrids (α-FeOOH QDs@GO) obtained through the consecutive modulation of β-FeOOH with organic ligands… Continue reading α-FeOOH quantum dots impregnated graphene oxide hybrids enhanced arsenic adsorption: The mediation role of environmental organic ligands
Arsenite (As(III)) is less efficient removal than arsenate (As(V)) by adsorption process. Integration of pre-oxidation to convert As(III) to As(V) with simultaneous in-situ adsorption of formed As(V) would be highly desirable. In this work, a novel three-dimensional (3D) bifunctional α-FeOOH@GCA nanocomposite prepared through goethite anchored graphene oxide nanosheet (GO)-carbon nanotubes (CNTs) as supporting materials for… Continue reading A bifunctional α-FeOOH@GCA nanocomposite for enhanced adsorption of arsenic and photo Fenton-like catalytic conversion of As(III)
