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Efficienza fotocatalitica di particelle di SnO₂ nanostrutturate
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ISBN10: 6209709222
ISBN13: 9786209709227
Publisher: Edizioni Sapienza
Published: Mar 19 2026
Pages: 64
Weight: 0.22
Height: 0.15 Width: 6.00 Depth: 9.00
Language: Italian
ISBN13: 9786209709227
Publisher: Edizioni Sapienza
Published: Mar 19 2026
Pages: 64
Weight: 0.22
Height: 0.15 Width: 6.00 Depth: 9.00
Language: Italian
Un mondo senza acqua è inimmaginabile e la domanda di acqua pulita è in rapido aumento per la sopravvivenza di tutti gli esseri viventi. Un accesso adeguato all'acqua potabile è discutibile per una persona su sei che vive oggi. Pertanto, il presente lavoro si concentra maggiormente sul trattamento delle acque contaminate da inquinanti organici e tossici industriali attraverso la fotocatalisi. Le nanoparticelle di ossido di stagno (SnO2) sintetizzate per co-precipitazione sono state preferite come catalizzatore per condurre l'esperimento di fotodegradazione. La struttura cristallografica e i parametri di cella sono stati calcolati dai dati XRD. La struttura tetragonale e rutilica ha calcolato il parametro di cella a=b=4,735 nm e c=3,185 nm. Secondo la formula di Scherer, la dimensione cristallina media è risultata essere di 11,40 nm. Lo studio termogravimetrico è stato effettuato sul precipitato prima della calcinazione per comprendere le reazioni termochimiche che avvengono durante la calcinazione. Infine, l'attività fotocatalitica è stata condotta contro il colorante standard, il blu di metilene. La concentrazione ottimale di 10-4M di soluzione di blu di metilene è stata degradata gradualmente con l'aiuto del fotocatalizzatore SnO2 sotto irradiazione UV. Il massimo di assorbimento è stato registrato per diversi intervalli di irradiazione UV.
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