Citation: Xia Liu, Yunhui Hou, Meng Tang, Longlu Wang. Atom elimination strategy for MoS₂ nanosheets to enhance photocatalytic hydrogen evolution[J]. Chinese Chemical Letters, ;2023, 34(3): 107489. doi: 10.1016/j.cclet.2022.05.003 shu

Atom elimination strategy for MoS₂ nanosheets to enhance photocatalytic hydrogen evolution

Xia Liu ^a ,
Yunhui Hou ^a ,
Meng Tang ^b ,
Longlu Wang ^{b, *,}

a.
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
b.
College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China

wanglonglu@hnu.edu.cn

Received Date: 9 February 2022
Revised Date: 11 April 2022
Accepted Date: 2 May 2022
Available Online: 5 May 2022

Figures(5)

The regulation of the basic properties of atom-economic catalysts at the atomic scale and atomic-level insights into the underlying mechanism of catalysis are less explored. We engineer the surface of vertical immobilized MoS₂ on dispersible TiO₂ nanofibers via atomic subtraction to precisely manipulate active sites at the atomic level. The photocatalytic performances of TiO₂@MoS₂ after H₂ reduction towards the hydrogen production under visible light irradiation (> 420 nm) are about 4 times that of TiO₂@MoS₂ before H₂ reduction. Importantly, the enhanced stability of TiO₂@MoS₂ lasts for at least 30 h. Promising catalytic activity that is attributed to omnidirectional exposed active sites located defects, edges, corners that are transformed from the subtractive atomic sites could be exhumed comprehensively. This work will provide an intriguing and effective approach on tuning electronic structures for optimizing the catalytic activity at the atomic level by atom elimination strategy. To get rid of a few atomics on the surface of atomically-thin MoS₂ nanosheet could be a prudent avenue for enabling the basal plane of MoS₂ catalytically active.
- Atomic level,
- Defect,
- MoS₂ nanosheets,
- Photocatalysis,
- Hydrogen evolution
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Atom elimination strategy for MoS2 nanosheets to enhance photocatalytic hydrogen evolution

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通讯作者: 陈斌, bchen63@163.com

Atom elimination strategy for MoS₂ nanosheets to enhance photocatalytic hydrogen evolution