Fabrication and photocatalytic properties of nano CuS/MoS2 composite catalyst by dealloying amorphous Ti–Cu–Mo alloy
Fabrication and photocatalytic properties of nano CuS/MoS2 composite catalyst by dealloying amorphous Ti–Cu–Mo alloy
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DOI：
10.1016/j.apsusc.2018.10.139
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发表时间：
2019-02
影响因子：
6.7
通讯作者：
Qiang Li;Qiang Li;X. Du;C. Xia;X. D. Wang;Tai Yang;Yingqi Jiang;Zhidao Yang;Zhu Demin;F. Yin
中科院分区：
文献类型：
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作者：
Qiang Li;Qiang Li;X. Du;C. Xia;X. D. Wang;Tai Yang;Yingqi Jiang;Zhidao Yang;Zhu Demin;F. Yin
将非晶态Ti30Cu70−xMox(x= 1，2，3at.%)条带在酸性溶液中化学脱合金化，制备了纳米CuS/MoS2复合催化剂。复合催化剂表现为由大量相交的20-40 nm厚的纳米片组成的球状团簇，这归因于脱合金化过程中层状材料在产物表面的聚集。与其他合金组分相比，当x= 3时，脱合金产物对亚甲基蓝的降解表现出良好的光催化活性和循环稳定性。这些特性主要是由于产物的大比表面积(∼31.12 m2g−1)和表面光生电子和空穴的低复合所致。
Nano CuS/MoS2composite catalysts were fabricated by chemically dealloying amorphous Ti30Cu70−xMox(x= 1, 2, 3 at.%) ribbons in acid solution. The composite catalysts presented as globular clusters composed of a large number of intersecting 20–40 nm-thick nanosheets, which was attributed to laminated materials aggregating on the surface of the product during dealloying. Compared with other alloy compositions, whenx= 3, the dealloying product exhibited excellent photocatalytic activity and cycling stability for the degradation of methylene blue. These characteristics are mainly due to the large specific surface (∼31.12 m2g−1) of the product and low recombination of photogenerated electrons and holes on its surface.