Application of sequential extraction analysis to Pb(II) recovery by zerovalent iron-based particles
| Autor: | Lichun Dai, Nengmin Zhu, Yun-fei Zhang, Guoquan Hu, Yan-sheng Xu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
021110 strategic
defence & security studies Zerovalent iron Environmental Engineering Aqueous solution Chemistry Health Toxicology and Mutagenesis Extraction (chemistry) 0211 other engineering and technologies Nanoparticle Heavy metals 02 engineering and technology 010501 environmental sciences 01 natural sciences Pollution Reagent Environmental Chemistry Recovery mechanism Waste Management and Disposal Quantitative analysis (chemistry) 0105 earth and related environmental sciences Nuclear chemistry |
| Zdroj: | Journal of Hazardous Materials. 351:138-146 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/j.jhazmat.2018.03.005 |
| Popis: | Zerovalent iron (ZVI) is an environmental-friendly reactive reagent for recovering heavy metals. However, the detailed recovery mechanism remains unclear due to a lack of quantitative analysis of recovery products. Herein, microscale ZVI, nanoscale ZVI and Ni/Fe nanoparticles were used to recover Pb(II) in aqueous solution and a sequential extraction procedure (SEP) was applied to determine the formed lead species quantitatively. At high initial Pb(II) concentration (500 mg L−1), more than 99.5% of Pb(II) was immobilized by Ni/Fe and n-ZVI, whereas m-ZVI caused inferior recovery efficiency ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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