Fabrication of Ag nanowires–CdS–Au photocatalyst and its excellent visible light photocatalytic activity: The role of synergetic electron transfer
Fabrication of Ag nanowires–CdS–Au photocatalyst and its excellent visible light photocatalytic activity: The role of synergetic electron transfer
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Ag纳米线—CdS—Au光催化剂的制备及其优异的可见光光催化活性：协同电子转移的作用
DOI：
10.1016/j.jtice.2016.12.004
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发表时间：
2017-02
影响因子：
5.7
通讯作者：
Fang Jiang
中科院分区：
文献类型：
--
作者：
Huan Chen;Shihai Cao;Jinhua Yao;Fang Jiang
采用两步溶剂热法合成了一种新型银纳米线- cds - au （Ag NWs-CdS-Au）光催化剂。巯基乙酸（TGA）作为金属核，提供了丰富的活性位点，有利于CdS的附着；cd表面过量的S2−有利于Au的加载，导致Ag - NWs-CdS和CdS - Au的结合界面发育良好。Ag - NWs-CdS与CdS-Au的结合和相互作用有利于光催化过程中的电子转移。Ag NWs-CdS-Au光催化剂中发生了多个电子转移过程，提高了载流子分离效率。因此，Ag NWs-CdS - au在可见光照射下对MB的光催化降解效率（89%）远高于Ag NWs-CdS（45%）。此外，Ag NWs-CdS-Au光催化剂可以吸收更多的可见光，有利于leuco-亚甲基蓝（LMB）分子的生成，并进一步促进·OH的形成。该发现为分离双金属制备双金属光催化剂提供了一种新的方法，以获得较高的可见光催化活性和稳定性。
A novel Ag nanowires–CdS–Au (Ag NWs–CdS–Au) photocatalyst was synthesized by a two-step solvothermal method. As a metal core, thioglycolic acid (TGA) functionalized Ag NWs provided abundant active sites, facilitating the attachment of CdS; and the excessive S2−on the surface of CdS favored the loading of Au, leading to the well-developed combined interface of Ag NWs–CdS and CdS–Au. The combination and interaction between Ag NWs–CdS and CdS–Au was beneficial to the electron transfer in the photocatalysis. Multiple electron transfer processes happened in the Ag NWs–CdS–Au photocatalyst, enhancing charge carrier separation efficiency. Therefore, Ag NWs–CdS–Au possessed much higher photocatalytic degradation efficiency (89%) of MB than that of Ag NWs–CdS (45%) under visible light irradiation. Additionally, the Ag NWs–CdS–Au photocatalyst could absorb more visible light, favoring the generation of leuco-methylene blue (LMB) molecules, and further promoting the formation of ·OH. The finding provides a novel method to obtain bimetallic photocatalyst with separated bimetals to achieve high visible light photocatalytic activity and stability.
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共核Pd@CdS纳米复合材料的制备作为可见光光催化剂，用于温和条件下的选择性转化
影响因子：
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作者：
Nan Zhang;Siqi Liu;Xianzhi Fu;Yi-Jun Xu
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DOI：
10.1002/chin.201302187
发表时间：
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期刊：
ChemInform
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影响因子：
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影响因子：
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作者：
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