Efficient and stable charge transfer channels for photocatalytic water splitting activity of CdS without sacrificial agents

2020 ◽  
Vol 8 (40) ◽  
pp. 20963-20969 ◽  
Author(s):  
Wei Chen ◽  
Guo-Bo Huang ◽  
Hao Song ◽  
Jian Zhang

An efficient charge transfer channel for improving the photocatalytic water splitting activity and durability of CdS without sacrificial agents.

2019 ◽  
Vol 29 (40) ◽  
pp. 1902992 ◽  
Author(s):  
Xingming Ning ◽  
Yali Wu ◽  
Xiaofang Ma ◽  
Zhen Zhang ◽  
Ruiqin Gao ◽  
...  

2018 ◽  
Vol 6 (48) ◽  
pp. 24686-24692 ◽  
Author(s):  
Zhiping Zeng ◽  
Tao Li ◽  
Yu-Bing Li ◽  
Xiao-Cheng Dai ◽  
Ming-Hui Huang ◽  
...  

Cascade charge transfer between graphene quantum dots and Ag nanocrystals in photoelectrochemical water splitting was finely regulated by layer-by-layer (LbL) assembly.


2015 ◽  
Vol 93 (7) ◽  
pp. 764-768
Author(s):  
Dahai Cheng ◽  
Jiuchuang Yuan ◽  
Maodu Chen

A non-Born–Oppenheimer (BO) investigation using coherent switching with decay of mixing method is carried out for both reactive non-charge transfer and charge transfer channels of reaction D+ + H2 (v, j = 0). For the non-charge transfer channel, it is found that the non-BO effect has a small influence on the differential cross section, but it has a large impact on the rotational polarization of the HD product, which is reflected by the joint distribution P(θr, ϕr). And it is also found that the polarization of the charge transfer products shows a quite different form. The rotational polarizations are also investigated at various collision energies and initial vibrational states for both reactive channels.


Nanoscale ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 4895-4902 ◽  
Author(s):  
Bing Fu ◽  
Zhijiao Wu ◽  
Shuang Cao ◽  
Kai Guo ◽  
Lingyu Piao

The spatial separation of reduction and oxidation reaction sites on the different facets of a semiconductor is an ideal and promising route for the overall photocatalytic water splitting due to efficient charge carrier separation.


Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3341
Author(s):  
Yuan Guo ◽  
Wanqing Liu ◽  
Wei Duan ◽  
Siyu Wang ◽  
Liqun Jia ◽  
...  

Photocatalytic water splitting for hydrogen generation is a significant pathway for sustainable energy conversion and production. The photocatalysts with a Z-scheme water splitting charge transfer pathway is superior due to the good separation and migration ability of photoexcited charge carriers. Herein, Co3O4/g-C3N4 photocatalysts with Z-scheme charge transfer pathway were successfully constructed by an electrostatic interaction-annealing method. The as-prepared Co3O4/g-C3N4 ultra-thin nanosheets were tested and analyzed by XRD, EA, ICP, SEM, TEM, AFM, XPS, UV-Vis DRS, PL and photoelectrochemical measurements. Moreover, the influences of fabrication parameters on performance of Co3O4/g-C3N4 catalysts were investigated, and 0.5% Co3O4/g-C3N4 exhibited the optimal activity. Based on the characterization and catalytic performance, the Z-scheme charge transfer pathway of Co3O4/g-C3N4 was established and put forward. To further improve the catalytic performance of Co3O4/g-C3N4, 0.5% Pt was added as a co-catalyst. The obtained Pt/0.5% Co3O4/g-C3N4 was recyclable and remained the original catalytic water splitting performance within 20 h. The modification of Co3O4 and Pt improved the separation and migration of e− and h+, and induced the increased hydrogen evolution rate of g-C3N4.


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