Synthesis of porous ZnS:Ag2S nanosheets by ion exchange for photocatalytic H2 generation.
Synthesis of porous ZnS:Ag2S nanosheets by ion exchange for photocatalytic H2 generation.
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DOI：
10.1021/am5020953
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发表时间：
2014-06
影响因子：
9.5
通讯作者：
Xia Yang;Hongtao Xue;Jun Xu;Xing Huang;Jie Zhang;Yongbing Tang;T. Ng;H. Kwong;Xiangmin Meng-Xi
中科院分区：
文献类型：
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作者：
Xia Yang;Hongtao Xue;Jun Xu;Xing Huang;Jie Zhang;Yongbing Tang;T. Ng;H. Kwong;Xiangmin Meng-Xi
以ZnS纳米片为牺牲模板，采用简单的离子交换方法制备了ZnS:Ag2S多孔纳米结构。在不同Ag离子浓度的溶液中，ZnS纳米片部分转化为Ag2S，得到不同孔径的多孔ZnS:Ag2S纳米片复合材料。利用Ag2S纳米晶作为空穴清除剂，在不使用贵金属助催化剂的情况下，制备的多孔纳米片具有104.9 μmol/h/g的光催化产氢速率。
ZnS:Ag2S porous nanostructures are prepared by a simple ion-exchange route using ZnS nanosheets as sacrificial templates. In solutions of different Ag ion concentrations, ZnS nanosheets are partially converted to Ag2S, resulting in porous ZnS:Ag2S nanosheet composites with different pore sizes. With the Ag2S nanocrystals playing the role of hole scavengers, the porous nanosheets exhibit a high photocatalytic H2 generation rate of 104.9 μmol/h/g without using any noble metal cocatalyst.