One-pot synthesis of nano-EMD for effective adsorption of toxic dyes.
A simple electrochemical technique was employed to synthesize nanocorn electrolytic manganese dioxide (MnO) (EMD) in the presence of the structure-directing agent poly(vinylpyrrolidone) (PVP) at the optimum concentration in an aqueous acidic manganese sulfate bath. X-ray diffraction and scanning ele...
| Publicado en: | Transactions of the Charles S. Peirce Society Vol. 60; no. 1; pp. 166 - 178 |
|---|---|
| Autores principales: | , , , , |
| Formato: | Artículo |
| Publicado: |
Indiana University Press
Winter2024
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=177680518&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 177680518 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00091774 2HR jtl: Transactions of the Charles S. Peirce Society issn: 00091774 maglogo: N pubinfo: dt: Winter2024 vid: 60 iid: 1 pid: 211 pub: Indiana University Press artinfo: ui: 177680518 10.1680/jnaen.22.00061 ppf: 166 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P size: 1.6MB tig: atl: One-pot synthesis of nano-EMD for effective adsorption of toxic dyes. aug: au: Biswal, Avijit Dhal, Jyoti Prakash Das, Bijnyan Ranjan Panda, Prasanna Kumar Tripathy, Bankim Chandra affil: Assistant Professor, Department of Chemistry, Odisha University of Technology and Research, Bhubaneswar, India Professor, Department of Chemistry, Odisha University of Technology and Research, Bhubaneswar, India PhD Research Scholar, Hydro and Electrometallurgy Department, CSIR–Institute of Minerals and Materials Technology, Bhubaneswar, India Chief Scientist, Hydro and Electrometallurgy Department, CSIR–Institute of Minerals and Materials Technology, Bhubaneswar, India su: Electrolytic manganese Malachite green Manganous sulfate Adsorption kinetics Dyes & dyeing sug: subj: Electrolytic manganese Malachite green Manganous sulfate Adsorption kinetics Dyes & dyeing keyword: adsorption Chicago sky blue electrodeposition EMD environmental impact hierarchical malachite green nanocorn ab: A simple electrochemical technique was employed to synthesize nanocorn electrolytic manganese dioxide (MnO) (EMD) in the presence of the structure-directing agent poly(vinylpyrrolidone) (PVP) at the optimum concentration in an aqueous acidic manganese sulfate bath. X-ray diffraction and scanning electron microscopy analyses confirmed the formation of γ-manganese dioxide with nanocorn-shaped crystals at the optimum concentration – namely, 20 mg/l PVP. The finely ground material was successfully employed in the removal of the toxic dyes Chicago sky blue (CSB) and malachite green (MG) from aqueous solution. Various process parameters such as different adsorbents, adsorbent dose, contact time, initial dye concentration and pH were varied and optimized for both dyes. It was found that EMD showed 99.61% adsorption efficiency at an optimum dose of 0.04 g/20 ml of the 100 mg/l CSB dye solution at room temperature within 20 min. However, the same EMD sample showed 99.5% adsorption efficiency at an optimum dose of 0.07 g/20 ml of the 100 mg/l MG dye solution at room temperature within 120 min. From the adsorption kinetics study, it was concluded that the adsorption process follows pseudo-second-order kinetics and the adsorption isotherm confirms that the reaction follows Langmuir adsorption for both dyes. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y custom: Copyright of Transactions of the Charles S. Peirce Society is the property of Indiana University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. item: Transactions of the Charles S. Peirce Society holder: Indiana University Press dt: @attributes: year: 2024 holdings: @attributes: islocal: N |
|---|