Silica-Based Magnetic Nanocomposites for Methylene Blue Removal from Wastewater

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F18%3A63521341" target="_blank" >RIV/70883521:28610/18:63521341 - isvavai.cz</a>

Výsledek na webu

<a href="http://cps.utb.cz/images/aktuality/Sborn%C3%ADk_PLASTKO_2018.pdf" target="_blank" >http://cps.utb.cz/images/aktuality/Sborn%C3%ADk_PLASTKO_2018.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Silica-Based Magnetic Nanocomposites for Methylene Blue Removal from Wastewater

Popis výsledku v původním jazyce

In recent years, magnetic nanocomposites have gained a considerable amount of attention for the removal of dyes from wastewater through chemical oxidation, biodegradation, membrane separation, electrochemical processes, etc. The classical adsorption method is widely used for the removal of dye. Silica-based magnetic nanocomposites have attracted much attention in the removal of dyes from aqueous solution among the extensive range of natural and synthetic adsorbents. Magnetic separation including adsorption method is a promising and costeffective method in wastewater treatment due to its efficiency in the removal of dyes. Magnetite-silica (Mag-Si) and Magnetite-Silica-Chitosan nanocomposites (Mag-Si-Cs) were successfully synthesized by co-precipitation synthesis and coated with TEOS to prevent particles aggregation. The Mag-Si composites were successfully impregnated with chitosan to form Mag-Si-Cs nanocomposites. Structural analysis of the nanocomposites was performed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Whereas, X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) revealed magnetite phase and compositional analysis (organic-inorganic). Magnetic properties of the nanocomposites were investigated using vibrating sample magnetometer (VSM). An impact of time, pH and concentration of the dye on the removal efficiency were analysed precisely to understand the reaction mechanism. The removal efficiencies depend on the thickness of the coating. In conclusion, Mag-Si and Mag-Si-Cs adsorbents act as a potential claimant for environmental applications, i.e., water recovery from MethB, by precise pH management.

Název v anglickém jazyce

Silica-Based Magnetic Nanocomposites for Methylene Blue Removal from Wastewater

Popis výsledku anglicky

In recent years, magnetic nanocomposites have gained a considerable amount of attention for the removal of dyes from wastewater through chemical oxidation, biodegradation, membrane separation, electrochemical processes, etc. The classical adsorption method is widely used for the removal of dye. Silica-based magnetic nanocomposites have attracted much attention in the removal of dyes from aqueous solution among the extensive range of natural and synthetic adsorbents. Magnetic separation including adsorption method is a promising and costeffective method in wastewater treatment due to its efficiency in the removal of dyes. Magnetite-silica (Mag-Si) and Magnetite-Silica-Chitosan nanocomposites (Mag-Si-Cs) were successfully synthesized by co-precipitation synthesis and coated with TEOS to prevent particles aggregation. The Mag-Si composites were successfully impregnated with chitosan to form Mag-Si-Cs nanocomposites. Structural analysis of the nanocomposites was performed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Whereas, X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) revealed magnetite phase and compositional analysis (organic-inorganic). Magnetic properties of the nanocomposites were investigated using vibrating sample magnetometer (VSM). An impact of time, pH and concentration of the dye on the removal efficiency were analysed precisely to understand the reaction mechanism. The removal efficiencies depend on the thickness of the coating. In conclusion, Mag-Si and Mag-Si-Cs adsorbents act as a potential claimant for environmental applications, i.e., water recovery from MethB, by precise pH management.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LO1504" target="_blank" >LO1504: Centrum polymerních systémů plus</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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