Photocatalytic activity of galvanically synthesized nanostructure SnO₂ thin films

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• 作者：Sumanta Jana^a ; ^{sumantajana85@gmail.com" class="auth_mail} ; Bibhas Chandra Mitra^b ; Pulakesh Bera^c ; Moushumi Sikdar^a ; Anup Mondal^a ; ^{anupmondal2000@yahoo.co.in" class="auth_mail}
• 关键词：Thin films ; Semiconductors ; Nanostructure materials ; Surfaces and interfaces ; Electronic properties ; Photocatalytic activity
• 刊名：Journal of Alloys and Compounds
• 出版年：25 July, 2014
• 年：2014
• 卷：602
• 期：Complete
• 页码：42-48
• 全文大小：1853 K

文摘

The study demonstrates an approach to synthesize nanostructure SnO₂ thin films on TCO (transparent conducting oxide) coated glass substrates by galvanic technique. Aqueous solution of hydrated stannic chloride (SnCl₄鈰?H₂O) in potassium nitrate (KNO₃) solution was used as the working solution. The process involves no sophisticated reactor or toxic chemicals, and proceeds continuously under ambient condition; it provides an economic way of synthesizing nanostructure SnO₂ semiconductor thin films. The influence of sintering temperature on crystalline structure, morphology, electrical and dielectric properties has been studied. A detail analysis of I鈭?em>V, C鈭?em>V and dielectrics for annealed SnO₂ thin films have been carried out. The morphological advantage i.e. nanoporous flake like structure allows more efficient transport of reactant molecules to the active interfaces and results a strong photocatalytic activity for degrading methyl orange (MO) dye.