ArticleMaterials (Basel, Switzerland)2025
Zirconium Phosphonate Sorbent Materials-Synthesis, Characterization, and Application for Copper Removal from Acidic Wastewater.
Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Application of a Zirconium-Titanium Phosphate-Phosphonate Composite Sorbent for Purification of Lithium-Rich Eluate Obtained by Direct Lithium Extraction Technology.Materials (Basel, Switzerland) · 2026Article
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4 authors.
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Abstract
Copper removal from wastewater is a major challenge in the treatment of both hydrometallurgical copper recycling effluents and mining wastewater. The use of sorbents is considered the most efficient and environmentally friendly method for this purpose. Zirconium aminotris(methylenephosphonates) exhibit excellent sorption properties towards many metal ions. Therefore, the goal of this research was to synthesize amorphous zirconium phosphonate materials with a wide range of P:Zr molar ratios (0.5-100) in the reaction mixture and under mild conditions. The obtained sorbents were characterized using ATR-FTIR, XRD, SEM-EDS, CHN analysis, and pH titration. The sorption properties of the zirconium aminotris(methylenephosphonates) were studied in pure copper solutions and in the complex acidic solutions (pH 1.6-3.2). The results were compared with those for the commercially available resins designed to capture copper containing iminodiacetic acid and bispicolylamine as surface groups. Zirconium aminotris(methylenephosphonate) synthesized at a P:Zr molar ratio of 50:1 shows fast sorption kinetics and the best sorption properties. The maximum sorption capacity in pure copper solutions is 62.3 mg/g, and its affinity for copper ions is comparable to that of reference resins
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