Synergistic Effect of Aminated Sodium Alginate Composite Material on Selective Adsorption of Sb: Experimental and Density Functional Theory Study.

ABSTRACT: Pollution by Sb, which is widely used in industry and agriculture, poses serious threats to ecosystems. This study demonstrates, for the first time, that sodium alginate (ALG) modified by polyethyleneimine (PEI) has good adsorption capacity for Sb(III) (the theoretical maximum adsorption capacity was 978 mg/g, and the actual maximum adsorption capacity was 743 mg/g) and can retain 90-98% of the initial removal rate after eight cycles of reuse. The inorganic ions and humic acid in Sb(III)-containing wastewater do not affect the adsorption capacity of PEI/ALG within a certain pH range. However, it was also found that the adsorption was interfered with by Sb(III) precipitation, phosphate ions, and some coexisting cations/metalloids such as Ni, Cd, Pb, and As under higher pH conditions, and th

SUBMITTER: Yang L 

PROVIDER: S-EPMC12732839 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature