Largely enhanced photocatalytic activity of Au/XS2/Au (X = Re, Mo) antenna–reactor hybrids: charge and energy transfer†,Nanoscale

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Largely enhanced photocatalytic activity of Au/XS2/Au (X = Re, Mo) antenna–reactor hybrids: charge and energy transfer†
Nanoscale ( IF 5.8 ) Pub Date : 2018-01-29 00:00:00 , DOI: 10.1039/c7nr09362d
Kai Chen _{1,

2,

3,

4,

5} , Si-Jing Ding _{2,

3,

4,

5,

6} , Zhi-Jun Luo _{2,

3,

4,

5,

6} , Gui-Ming Pan _{2,

3,

4,

5,

6} , Jia-Hong Wang _{7,

8,

9,

10,

11} , Jia Liu _{2,

3,

4,

5,

6} , Li Zhou _{2,

3,

4,

5,

6} , Qu-Quan Wang _{1,

2,

3,

4,

5}

Affiliation

An antenna–reactor hybrid coupling plasmonic antenna with catalytic nanoparticles is a new strategy to optimize photocatalytic activity. Herein, we have rationally proposed a Au/XS₂/Au (X = Re, Mo) antenna reactor, which has a large Au core as the antenna and small satellite Au nanoparticles as the reactor separated by an ultrathin two-dimensional transition-metal dichalcogenide XS₂ shell (∼2.6 nm). Due to efficient charge transfer across the XS₂ shell as well as energy transfer via coupling of the Au antenna and Au reactor, the photocatalytic activity has been largely enhanced: Au/ReS₂/Au exhibits a 3.59-fold enhancement, whereas Au/MoS₂/Au exhibits a 2.66-fold enhancement as compared to that of the sum of the three individual components. The different enhancement in the Au/ReS₂/Au and Au/MoS₂/Au antenna–reactor hybrid is related to the competition and cooperation of charge and energy transfer. These results indicate the great potential of the Au/XS₂/Au antenna–reactor hybrid for the development of highly efficient plasmonic photocatalysts.

中文翻译：

Au / XS ₂ / Au（X = Re，Mo）天线-反应器混合体的光催化活性大大增强：电荷和能量转移†

带有反应性纳米粒子的天线-反应器混合耦合等离子体激元天线是优化光催化活性的新策略。在这里，我们合理地提出了一个Au / XS ₂ / Au（X = Re，Mo）天线反应堆，该天线堆具有大的Au核作为天线，小的卫星Au纳米颗粒作为被超薄的二维过渡金属隔开的反应堆。杀二氢杀螨剂XS ₂壳（〜2.6 nm）。由于通过XS ₂壳层进行的有效电荷转移以及通过Au天线和Au反应器的耦合进行的能量转移，光催化活性得到了大大增强：Au / ReS ₂ / Au表现出3.59倍的增强，而Au / MoS _2个与三个单独成分之和相比，/ Au表现出2.66倍的增强。Au / ReS ₂ / Au和Au / MoS ₂ / Au天线－反应器混合体的不同增强与电荷和能量转移的竞争与合作有关。这些结果表明，Au / XS ₂ / Au天线-反应器混合物在开发高效等离激元光催化剂方面具有巨大潜力。

更新日期：2018-01-29

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