Synthesis and Photocatalytic Properties of Coupled Nanocrystalline ZnO/ZnS in Nafion Membrane  

作　　者：王建春 刘平 吴棱 王绪绪 毕进红 韩炜 

机构地区：[1]Research Institute of Photocatalysis,Fuzhou University

出　　处：《Chinese Journal of Structural Chemistry》2010年第4期632-640,共9页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China (Nos. 20473017, 20537010,and 20573020);the National Key Basic Research Special Foundation (2006CB708605, 2007CB613306)

摘　　要：The coupled nanocrystalline ZnO/ZnS was fabricated and immobilized in Nafion membrane by using sodium sulfide （Na2S） as the single anion precursor. The molar ratio of ZnO to ZnS can be controlled by simply adjusting the reaction time. The as-prepared ZnO/ZnS-Nafion samples were characterized by various methods, including optical absorption, X-ray diffraction and high-resolution transmission electron microscopy. These coupled ZnO/ZnS nanocrystals embedded in Nafion membrane displayed excellent photocatalytic activities for their efficient charge separation properties. A mechanism of ZnO/ZnS nanoparticle fabrication in Nafion was deduced from the solubility difference, and the photocatalytic mechanism of coupled ZnO/ZnS was discussed as well.The coupled nanocrystalline ZnO/ZnS was fabricated and immobilized in Nafion membrane by using sodium sulfide （Na2S） as the single anion precursor. The molar ratio of ZnO to ZnS can be controlled by simply adjusting the reaction time. The as-prepared ZnO/ZnS-Nafion samples were characterized by various methods, including optical absorption, X-ray diffraction and high-resolution transmission electron microscopy. These coupled ZnO/ZnS nanocrystals embedded in Nafion membrane displayed excellent photocatalytic activities for their efficient charge separation properties. A mechanism of ZnO/ZnS nanoparticle fabrication in Nafion was deduced from the solubility difference, and the photocatalytic mechanism of coupled ZnO/ZnS was discussed as well.

关 键 词：COUPLED ZnO/ZnS NAFION photocatalysis mechanism 

分 类 号：O643.36[理学—物理化学]