Synthesis, characterization and study of arsenate adsorption from aqueous solution by ?- and ?- phase manganese dioxide nanoadsorbents
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023494" target="_blank" >RIV/60461373:22340/10:00023494 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/60461373:22320/10:00023933
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Synthesis, characterization and study of arsenate adsorption from aqueous solution by ?- and ?- phase manganese dioxide nanoadsorbents
Popis výsledku v původním jazyce
Single-phase ?-MnO2 nanorods and ?-MnO2 nano-fiber clumps were synthesized using manganese pentahydrate in an aqueous solution. These nanomaterials were characterized using the Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FE-SEM), Powder X-ray diffraction (XRD) and the Brunauer?Elmet?Teller nitrogen adsorption technique (BET-N2 adsorption). The structural analysis shows that ?-MnO2 (2x2 tunnel structure) has the form of needle-shaped nanorods and ?-MnO2 (2D-layered structure) consists of fine needle-like fibers arranged in ball-like aggregates. Batch adsorption experiments were carried out to determine the effect of pH on adsorption kinetics and adsorption capacity for the removal of As(V) from aqueous solution onto these two types of nanoadsorbents. The adsorption capacity of As(V) was found to be highly pH dependent. The adsorption of As(V) onto ?-MnO2 reached equilibrium more rapidly with higher adsorption capacity compared to
Název v anglickém jazyce
Synthesis, characterization and study of arsenate adsorption from aqueous solution by ?- and ?- phase manganese dioxide nanoadsorbents
Popis výsledku anglicky
Single-phase ?-MnO2 nanorods and ?-MnO2 nano-fiber clumps were synthesized using manganese pentahydrate in an aqueous solution. These nanomaterials were characterized using the Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FE-SEM), Powder X-ray diffraction (XRD) and the Brunauer?Elmet?Teller nitrogen adsorption technique (BET-N2 adsorption). The structural analysis shows that ?-MnO2 (2x2 tunnel structure) has the form of needle-shaped nanorods and ?-MnO2 (2D-layered structure) consists of fine needle-like fibers arranged in ball-like aggregates. Batch adsorption experiments were carried out to determine the effect of pH on adsorption kinetics and adsorption capacity for the removal of As(V) from aqueous solution onto these two types of nanoadsorbents. The adsorption capacity of As(V) was found to be highly pH dependent. The adsorption of As(V) onto ?-MnO2 reached equilibrium more rapidly with higher adsorption capacity compared to
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CI - Průmyslová chemie a chemické inženýrství
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
R - Projekt Ramcoveho programu EK
Ostatní
Rok uplatnění
2010
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Solid State Chemistry
ISSN
0022-4596
e-ISSN
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Svazek periodika
183
Číslo periodika v rámci svazku
12
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
7
Strana od-do
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Kód UT WoS článku
000285431100033
EID výsledku v databázi Scopus
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