LAUSR

Considering the protocol of “zero-alkaline waste disposal” for green and arsenic-free environment, lanthanum (La3+)-based MOF-like complex materials were designed, and the complex materials have been employed as adsorbent for AsO43– adsorption from water. The sucrose-derived porous carbon (SPC)@La-oxalate complex was prepared by a simple one-pot coprecipitation method at room temperature, where oxalate has been used as an organic ligand, and the carbonaceous biomass has been used as a doping material that is naturally a carboxylate-rich functional group derived from a sucrose biomass. In addition to SPC@La-oxalate, bare-SPC, La(OH)3, and SPC@La(OH)3 were also prepared via simple base-addition conventional methods, and their performances in AsO43– removal were compared. The FTIR peak at 848 cm–1 confirmed the presence of AsO43– on the SPC@La-oxalate complex after adsorption of 1 mM AsO43–. The high resolution X-ray photoelectron spectrum for the AsO43– adsorbed SPC@La-oxalate showed a peak at EB[As 3d] = 4...