Defect MoS2 and Ti3C2 nanosheets co-assisted CdS to enhance visible-light driven photocatalytic hydrogen production

被引:23
作者
Wang, Yingrui [1 ,2 ]
Liu, Chao [1 ]
Kong, Cui [1 ]
Zhang, Fengjun [1 ,3 ]
机构
[1] Anhui Jianzhu Univ, Key Lab Funct Mol Design & Interface Proc, Hefei 230601, Anhui, Peoples R China
[2] Anhui Jianzhu Univ, Construct Econ & Real Estate Management Res Ctr, Hefei 230601, Anhui, Peoples R China
[3] Anhui Jianzhu Univ, Anhui Key Lab Adv Bldg Mat, Hefei 230022, Anhui, Peoples R China
关键词
Mo vacancy; Defect MoS2/Ti3C2/CdS; Photocatalytic hydrogen production; HETEROGENEOUS HYBRID; EFFICIENT COCATALYST; H-2; EVOLUTION; NANORODS; HETEROSTRUCTURE; PERFORMANCE; COMPOSITES; SEPARATION; SITES; MXENE;
D O I
10.1016/j.colsurfa.2022.129746
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The addition of a co-catalyst is one of the most effective ways to enhance the performance of CdS photocatalytic hydrogen production. In this work, ternary photocatalysts with Defect MoS2 and Ti3C2 acting synergistically on CdS are explored. The experimental results showed that the Defect MoS2/Ti3C2/CdS photocatalyst had excellent photocatalytic hydrogen production performance of 14.1 mmol h(-1)g(-1), which was 18.5, 12.4, and 1.2 times higher than that of CdS, Ti3C2/CdS and Defect MoS2/CdS, respectively. Defect MoS2 and Ti3C2 synergistically interact with CdS and form heterojunctions, which improve the carrier separation efficiency and effectively suppress the recombination of photogenerated carriers. A possible photocatalytic hydrogen production mecha-nism of Defect MoS2/Ti3C2/CdS is also proposed. The dual co-catalysts of Defect MoS2 and Ti3C2 demonstrated in this paper provide a feasible approach for the development of composite catalysts.
引用
收藏
页数:9
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