Hydrothermally synthesized MnO2 nanowires and their application in Lead(II) and Copper(II) batch adsorption

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F21%3APU138306" target="_blank" >RIV/00216305:26220/21:PU138306 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/21:PU140745 RIV/00216224:14310/21:00122256

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0167732220374456" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167732220374456</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hydrothermally synthesized MnO2 nanowires and their application in Lead(II) and Copper(II) batch adsorption

Popis výsledku v původním jazyce

Manganese oxide (Mn2O) nanowires with diameters of 20nm to 100nm are synthesized by hydrothermal method. Chemical characterization of these nanostructures demonstrates the formation of Mn(IV), corroborating the MnO2 compounbd. The nanowires were used as adsorbents of Pb(II) and Cu(II) ions from water in batch system at room temperature. The results indicate faster adsorptin rates and better affinity towards Pb(II) compared to Cu(II), since the adsorption capacity an percentaje of removal at equilibrium for Pb(II) are higher than those for Cu(II). The kineticsof adsorption was described by a pseudo-second order rate model for both ions, and Wbeber and Morris intra-particle diffusion model was used to a better understanding of the preocess. In addition, the Langmuir and Freundlich models were used to describe the isotherms, the first model was better adjusted for Cu(II) adsorption and the later for Pb(II) adsortpion.

Název v anglickém jazyce

Hydrothermally synthesized MnO2 nanowires and their application in Lead(II) and Copper(II) batch adsorption

Popis výsledku anglicky

Manganese oxide (Mn2O) nanowires with diameters of 20nm to 100nm are synthesized by hydrothermal method. Chemical characterization of these nanostructures demonstrates the formation of Mn(IV), corroborating the MnO2 compounbd. The nanowires were used as adsorbents of Pb(II) and Cu(II) ions from water in batch system at room temperature. The results indicate faster adsorptin rates and better affinity towards Pb(II) compared to Cu(II), since the adsorption capacity an percentaje of removal at equilibrium for Pb(II) are higher than those for Cu(II). The kineticsof adsorption was described by a pseudo-second order rate model for both ions, and Wbeber and Morris intra-particle diffusion model was used to a better understanding of the preocess. In addition, the Langmuir and Freundlich models were used to describe the isotherms, the first model was better adjusted for Cu(II) adsorption and the later for Pb(II) adsortpion.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Molecular Liquids

ISSN

0167-7322

e-ISSN

1873-3166

Svazek periodika

325

Číslo periodika v rámci svazku

115203

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

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EID výsledku v databázi Scopus

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