Removal of Methyl Violet from Aqueous solutions using Sr2ANbO5.5 (A= Ca+2, Sr+2 & Ba+2).
Three members of the A-site doped Nb perovskites with general formula Sr2CaNbO5.5, Sr3NbO5.5 and BaSr2NbO5.5 were synthesised by solid-state methods and their removal efficiency of Methyl violet from aqueous solutions investigated. The X-ray diffraction measurements demonstrated that the three sampl...
| Publicado en: | Revista CENIC Ciencias Quimicas no. 1; pp. 1 - 13 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
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Centro Nacional de Investigaciones Cientificas
ene-jun2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=lth&AN=157761717&site=ehost-live header: @attributes: shortDbName: lth uiTerm: 157761717 longDbName: MedicLatina uiTag: AN controlInfo: bkinfo: jinfo: jid: 10158553 UF0 jtl: Revista CENIC Ciencias Quimicas issn: 10158553 maglogo: N pubinfo: dt: ene-jun2022 iid: 1 pid: 21205 pub: Centro Nacional de Investigaciones Cientificas artinfo: ui: 157761717 ppf: 1 ppct: 12 formats: fmt: @attributes: type: P size: 2.3MB tig: atl: Removal of Methyl Violet from Aqueous solutions using Sr2ANbO5.5 (A= Ca+2, Sr+2 & Ba+2). aug: au: Alnaas, Maryam M. Awin, Labib A. El-Rais, Mahmoud A. Etorki, Abdunnaser M. Ezrgane, Moda M. affil: Chemistry Department, Faculty of Science, Gharyan University, Libya Chemistry Department, Faculty of Science, Tripoli University, Libya su: Gentian violet Alkaline earth metals Aqueous solutions X-ray diffraction Perovskite X-ray diffraction measurement Adsorption (Chemistry) Space groups Basic dyes Cell size Sorbents Nanoparticles sug: subj: Gentian violet Alkaline earth metals Aqueous solutions X-ray diffraction Perovskite X-ray diffraction measurement Adsorption (Chemistry) Space groups Basic dyes Cell size Sorbents Nanoparticles keyword: A-site Doping Methyl violet Removal dopaje en el sitio A Eliminación violeta de metilo ab: Three members of the A-site doped Nb perovskites with general formula Sr2CaNbO5.5, Sr3NbO5.5 and BaSr2NbO5.5 were synthesised by solid-state methods and their removal efficiency of Methyl violet from aqueous solutions investigated. The X-ray diffraction measurements demonstrated that the three samples have a faced cubic perovskite-type structure in space group Fm m. The additions of Ba2+ and Ca2+ into the A-site of Sr3NbO5.5 have influenced the cell volume, crystal size and density. Subsequently, the removal capacity was also impacted. The crystallite size of the three oxides was calculated to be less than 82 nm. The maximum removal capacities of Methyl violet are found to be 46.5, 13.1 and 8.0 mg/g using BaSr2NbO5.5, Sr3NbO5.5 and CaSr2NbO5.5, respectively. The amounts of the adsorbed dye have decreased as the ionic radii of the doped decreased. The removals of Methyl violet have a positive relationship with pH, temperature and the mass of the oxides. Tres miembros de las perovskitas de Nb dopadas en el sitio A con la fórmula general Sr2CaNbO5.5, Sr3NbO5.5 y BaSr2NbO5.5 se sintetizaron mediante métodos de estado sólido y se investigó su eficiencia de eliminación de violeta de metilo de soluciones acuosas. Las mediciones de difracción de rayos X demostraron que las tres muestras tienen una estructura de tipo perovskita cúbica enfrentada en el grupo espacial Fm3 ̅m. Las adiciones de Ba2+ y Ca2+ en el sitio A de Sr3NbO5.5 han influido en el volumen celular, el tamaño del cristal y la densidad. Posteriormente, la capacidad de remoción también se vio afectada. Se calculó que el tamaño de los cristalitos de los tres óxidos era inferior a 82 nm. Las capacidades máximas de eliminación de violeta de metilo son de 46,5, 13,1 y 8,0 mg/g utilizando BaSr2NbO5,5, Sr3NbO5,5 y CaSr2NbO5,5, respectivamente. Las cantidades del colorante adsorbido han disminuido a medida que disminuían los radios iónicos del dopado. Las remociones de violeta de metilo tienen una relación positiva con el pH, la temperatura y la masa de los óxidos. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y custom: Copyright of Revista CENIC Ciencias Quimicas is the property of Centro Nacional de Investigaciones Cientificas 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: Revista CENIC Ciencias Quimicas holder: Centro Nacional de Investigaciones Cientificas dt: @attributes: year: 2022 holdings: @attributes: islocal: N |
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