{"title":"Heavy Metals Adsorption on Cyanex-272 Modified Activated Carbon: Efficacy and Selectivity","authors":"Zeinab Ezzeddine, Layla Abdallah, Hussein Hamad","doi":"10.37256/ujcr.1120231937","DOIUrl":null,"url":null,"abstract":"This study investigated the potential use of activated carbon functionalized with Cyanex272 (AC-Cyanex 272), in the removal of lead, copper and zinc cations from aqueous solutions. The modified adsorbent was characterized by powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Zeta-Meter and particle size distribution. Batch adsorption experiments were performed as a function of pH, contact time, and initial metal ion concentration. Adsorption was found dependent on these parameters. The adsorption capacities were very high (126.36, 175.5 and 157.16 mg g-1 for Pb2+, Cu2+ and Zn2+ respectively). Langmuir and Freundlich isotherms were used as models for the equilibrium adsorption data and adsorption kinetic data are best described by the second order model.","PeriodicalId":355701,"journal":{"name":"Universal Journal of Carbon Research","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Universal Journal of Carbon Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.37256/ujcr.1120231937","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This study investigated the potential use of activated carbon functionalized with Cyanex272 (AC-Cyanex 272), in the removal of lead, copper and zinc cations from aqueous solutions. The modified adsorbent was characterized by powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Zeta-Meter and particle size distribution. Batch adsorption experiments were performed as a function of pH, contact time, and initial metal ion concentration. Adsorption was found dependent on these parameters. The adsorption capacities were very high (126.36, 175.5 and 157.16 mg g-1 for Pb2+, Cu2+ and Zn2+ respectively). Langmuir and Freundlich isotherms were used as models for the equilibrium adsorption data and adsorption kinetic data are best described by the second order model.
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