Enhanced visible light photocatalytic performance of ZnO/ZnS/CuS ternary nanocomposites

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• 作者：Changzhen Liu^a ; Yanxin Wang^a ; Dawei Meng^b ; ; Xiaohong Yu^b ; Yongqian Wang^b ; Jie Liu^b ; Can Lu^b ; Kun Xu^b
• 关键词：Semiconductors ; Nanocomposites ; Visible light ; Photocatalytic activity
• 刊名：Materials Letters
• 出版年：1 May, 2014
• 年：2014
• 卷：122
• 期：Complete
• 页码：197-200
• 全文大小：779 K

文摘

The ZnO/ZnS/CuS ternary nanocomposites (ZOSCTN) were synthesized via a three-step chemical method with ZnO/ZnS binary nanocomposites (ZOSBN) as the intermediate and ZnO nanoparticles (ZON) as the initial product. The structural, morphological and optical properties of ZON, ZOSBN and ZOSCTN were characterized by X-ray diffraction, field emission scanning electron microscopy and Ultraviolet-visible spectroscopy. ZOSBN can maintain the morphology and size of ZON. However, after the introduction of the third component, ZOSCTN become blades-like with the thickness about 20-50 nm. Moreover, ZOSCTN has markedly improved visible light photocatalytic performance than ZON and ZOSBN because of the high solar absorption and heterostructures interfaces.