کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
40962 | 45872 | 2012 | 8 صفحه PDF | دانلود رایگان |
Mesoporous cobalt-doped ZnS and ZnO nanoplates were fabricated by calcination of a Zn0.95Co0.05S(en)0.5 complex (en = ethylenediamine), which was hydrothermally synthesized using ethylenediamine as a single solvent and chelating agent. When the as-prepared Zn0.95Co0.05S(en)0.5 complex was calcined, mesoporous nanoplates of wurtzite Zn0.95Co0.05S were formed, which then transformed to Zn0.95Co0.05O platelets upon further oxidation. Photocatalytic performance of the as-prepared materials was investigated for decomposition of the azo dye (acid red 14) and photoelectrochemical current generation in aqueous Na2S/Na2SO3 solution as probe reactions. The Zn0.95Co0.05S calcined at 500 °C exhibited the highest photocatalytic activity under UV irradiation and also showed the photocatalytic performance under visible light irradiation.
Figure optionsDownload high-quality image (185 K)Download as PowerPoint slideHighlights
► Zn0.95Co0.05S(en)0.5 complex was prepared by hydrothermal synthesis.
► Zn0.95Co0.05S and Zn0.95Co0.05O nanoplates were produced by a topotactic solid transformation.
► Mesoporous Zn0.95Co0.05S nanoplates showed good photosensitivity and stability under visible light irradiation.
► The photocatalytic activity for the degradation of AR14 originates from the band-gap excited photons.
Journal: Applied Catalysis A: General - Volumes 427–428, 15 June 2012, Pages 106–113