{"title":"Green creation of CoFe<sub>2</sub>O<sub>4</sub> nanosorbent for superior toxic Cd ions elimination","authors":"Laila S. Alqarni","doi":"10.1515/zna-2023-0180","DOIUrl":null,"url":null,"abstract":"Abstract A mesoporous cobalt ferrite nanostructure was prepared by a green chemistry approach using Pimpinella anisum extract for Cd (II) ions elimination from an aqueous medium. The metal ions adsorption was explored under varying operating conditions, comprising of the pH, initial adsorbate concentration, and contact time. The synthesized sorbent was characterized by various techniques where the XRD data verified a ferrite structure of ≈25 nm crystallite size and the EDX elemental analysis affirmed the presence of the corresponding elements. The CoFe 2 O 4 established porosity characteristic of 10.8 m 2 g −1 BET-specific surface area and 0.023 cm 3 g −1 pore volume values. Batch mode experiments ascertained that the Cd (II) ions uptake was pH-dependent, with peak removal of 170 mg/g accomplished at pH = 5. The adsorption process of the metal ions onto the mesoporous nanomaterial surface fitted well with the Langmuir isotherm and pseudo-second-order kinetics models. The mechanistic aspects indicated the role of intra-particle and film diffusion in the adsorption process. The adsorbent could efficiently remove the pollutant up 74.3 % to four cycles of successful regeneration. This investigation endorsed that CoFe 2 O 4 might be potent candidate for heavy metals from aqueous systems.","PeriodicalId":54395,"journal":{"name":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8000,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/zna-2023-0180","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract A mesoporous cobalt ferrite nanostructure was prepared by a green chemistry approach using Pimpinella anisum extract for Cd (II) ions elimination from an aqueous medium. The metal ions adsorption was explored under varying operating conditions, comprising of the pH, initial adsorbate concentration, and contact time. The synthesized sorbent was characterized by various techniques where the XRD data verified a ferrite structure of ≈25 nm crystallite size and the EDX elemental analysis affirmed the presence of the corresponding elements. The CoFe 2 O 4 established porosity characteristic of 10.8 m 2 g −1 BET-specific surface area and 0.023 cm 3 g −1 pore volume values. Batch mode experiments ascertained that the Cd (II) ions uptake was pH-dependent, with peak removal of 170 mg/g accomplished at pH = 5. The adsorption process of the metal ions onto the mesoporous nanomaterial surface fitted well with the Langmuir isotherm and pseudo-second-order kinetics models. The mechanistic aspects indicated the role of intra-particle and film diffusion in the adsorption process. The adsorbent could efficiently remove the pollutant up 74.3 % to four cycles of successful regeneration. This investigation endorsed that CoFe 2 O 4 might be potent candidate for heavy metals from aqueous systems.
期刊介绍:
A Journal of Physical Sciences: Zeitschrift für Naturforschung A (ZNA) is an international scientific journal which publishes original research papers from all areas of experimental and theoretical physics. Authors are encouraged to pay particular attention to a clear exposition of their respective subject, addressing a wide readership. In accordance with the name of our journal, which means “Journal for Natural Sciences”, manuscripts submitted to ZNA should have a tangible connection to actual physical phenomena. In particular, we welcome experiment-oriented contributions.