Nanocompositi di silicio e titanio

Nanocompositi di silicio e titanio

Antonio A. S. Alfaya / Nayara Melquiades de Oliveira

33,37 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
ISBN:
9786208587628
33,37 €
IVA incluido
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Sobre IBD

In questo lavoro è stata sviluppata una via sintetica per la preparazione di nanocompositi SiO₂/TiO₂ mediante processo sol-gel, con rapporti di silicio e titanio di 80:20, 70:30 e 55:45. I nanocompositi sono stati caratterizzati mediante analisi chimiche, SEM, EDS, FTIR, diffrazione di raggi X, misure dell’area superficiale specifica e la tecnica della riflettanza diffusa. Grazie alla riflettanza diffusa è stato possibile determinare la banda di energia di gap e, utilizzando modelli matematici, è stato possibile correlare l’energia di gap misurata e determinare approssimativamente la dimensione dei nanocristalliti. Lo studio della fotodegradazione del blu di metilene in soluzione acquosa con i materiali preparati e la luce naturale del sole è stato effettuato con diversi tempi di contatto, pH e concentrazione della soluzione, al fine di osservare la variazione dell’efficienza di fotodegradazione in funzione della variazione della proporzione di silicio e titanio nella matrice.

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Otros libros del autor

  • Nanokompositen aus Silizium und Titan
    Antonio A. S. Alfaya / Nayara Melquiades de Oliveira
    In dieser Arbeit wurde ein Syntheseweg für die Herstellung von SiO₂/TiO₂-Nanokompositen durch das Sol-Gel-Verfahren entwickelt, mit Silizium- und Titanverhältnissen von 80:20, 70:30 und 55:45. Die Nanokomposite wurden mittels chemischer Analyse, SEM, EDS, FTIR, Röntgenbeugung, Messungen der spezifischen Oberfläche und der diffusen Reflexion charakterisiert. Mit Hilfe der diffus...
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  • Nanokompozyty krzemu i tytanu
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