Development of sulfonated polystyrene resin-supported tungsten oxide for Pb²⁺ ion sequestration.

ABSTRACT: A sulfonated polystyrene resin-supported tungsten oxide (SO₃-PSWO) was synthesized and evaluated for its efficiency in removing lead (Pb²⁺) from aqueous solutions. Morphology, phase purity, structural properties, thermal stability, and elemental composition of SO₃-PSWO, are evaluated using SEM, XRD, FTIR, TGA, and CHNS analyzers. The ICP-OES technique was utilized for quantitative measurements of the Pb²⁺ ions. The influence of key parameters such as pH, adsorbent dose, contact time, metal ion concentration, temperature, and interference of competing ions on Pb²⁺ removal is systematically investigated. Under optimum conditions (pH 3.5-5.5), SO₃-PSWO achieved a maximum Pb²⁺ removal efficiency of 99.7% within one ho

SUBMITTER: Khaliq K 

PROVIDER: S-EPMC12044525 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature