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Chemical purification of ZnO Nanoparticles by dialyzing treatments and their use in fabricating luminescent antireflective nanocomposite thin films / Natsumi Watanabe in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5611-5617 Titre : Chemical purification of ZnO Nanoparticles by dialyzing treatments and their use in fabricating luminescent antireflective nanocomposite thin films Type de document : texte imprimé Auteurs : Natsumi Watanabe, Auteur ; Shinobu Fujihara, Auteur Année de publication : 2011 Article en page(s) : pp. 5611-5617 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Thin  film  Nanocomposite  Nanoparticle  Purification Résumé : ZnO nanoparticles were prepared by a chemical solution method using the reaction between Zn(CH3COO)2 ·2H2O and LiOH · H2O in an ethanol solvent. A dialyzing treatment of the resultant chemically impure nanoparticles was introduced in the present work, aiming at increasing their chemical purity in terms of adsorbed species. The progress of dialysis was monitored with electrical conductivity of dialysate. X-ray diffraction analysis and Fourier transform infrared spectroscopy were employed to check the chemical purity of the ZnO nanoparticles after the dialyzing treatment. Furthermore, the dialyzed ZnO nanoparticles were utilized to fabricate ZnO/SiO2 nanocornposite thin films by a sol-gel method with a dip-coating technique. Stable coating solutions were obtained only with the dialyzed ZnO nanoparticles, which also indicated their chemical purity. The nanocomposite thin films exhibited a unique optical property with antireflection against visible light and photoluminescence under irradiation with ultraviolet light. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128685 [article] Chemical purification of ZnO Nanoparticles by dialyzing treatments and their use in fabricating luminescent antireflective nanocomposite thin films [texte imprimé] / Natsumi Watanabe, Auteur ; Shinobu Fujihara, Auteur . - 2011 . - pp. 5611-5617. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5611-5617 Mots-clés : Thin  film  Nanocomposite  Nanoparticle  Purification Résumé : ZnO nanoparticles were prepared by a chemical solution method using the reaction between Zn(CH3COO)2 ·2H2O and LiOH · H2O in an ethanol solvent. A dialyzing treatment of the resultant chemically impure nanoparticles was introduced in the present work, aiming at increasing their chemical purity in terms of adsorbed species. The progress of dialysis was monitored with electrical conductivity of dialysate. X-ray diffraction analysis and Fourier transform infrared spectroscopy were employed to check the chemical purity of the ZnO nanoparticles after the dialyzing treatment. Furthermore, the dialyzed ZnO nanoparticles were utilized to fabricate ZnO/SiO2 nanocornposite thin films by a sol-gel method with a dip-coating technique. Stable coating solutions were obtained only with the dialyzed ZnO nanoparticles, which also indicated their chemical purity. The nanocomposite thin films exhibited a unique optical property with antireflection against visible light and photoluminescence under irradiation with ultraviolet light. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128685