Construction of a nanocavity structure with a carrier-selective layer for enhancement of photocatalytic hydrogen production performance

2020 ◽  
Vol 4 (5) ◽  
pp. 2164-2173 ◽  
Author(s):  
Qin Lei ◽  
Rongzhi Chen ◽  
Jihua Tan ◽  
Xinxin Long ◽  
Huanyu Chen ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Production Performance ◽  
Excellent Performance ◽  
Hole Transfer ◽  
Selective Layer ◽  
Photocatalytic Hydrogen Production

A nanocavity structure with Au–S carrier-selective layer was constructed to enhance photocatalytic H2 evolution activity, improving ∼13.8 times compared to Au/CdS. The excellent performance is mainly caused by effective hole transfer of Au–S layer.

Influence of surface modification of mercapto compounds on photocatalytic hydrogen production performance of amorphous MoS3

2019 ◽  
Vol 6 (10) ◽  
pp. 105031
Author(s):  
Mingcai Yin ◽  
Jiangfan Sun ◽  
Yixian Li ◽  
Huan Zhou ◽  
Fangfang Qiao ◽  
...  
Keyword(s):  
Surface Modification ◽  
Hydrogen Production ◽  
Production Performance ◽  
Photocatalytic Hydrogen Production

scholarly journals Green hydrogen production by solar photocatalysis using Pt-TiO2 nanosheets with reactive facets

2021 ◽  
Vol 28 (2) ◽  
pp. 75-81
Author(s):  
Bin Wang ◽  
Daniel H C Wan ◽  
Altair T F Cheung ◽  
Denis Y C Leung ◽  
Xiao-Ying Lu ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Diffuse Reflectance Spectroscopy ◽  
Production Performance ◽  
Photocatalytic Hydrogen Production ◽  
X Ray ◽  
Transmission Electron ◽  
Tio2 Nanosheets ◽  
Production Of Hydrogen ◽  
Green Production ◽  
Renewable Hydrogen

Green production of hydrogen is essential for the development of a hydrogen economy. In this study, the photocatalytic water-splitting technology is developed to harness solar energy for production of renewable hydrogen. Pt-TiO2 nanosheets were fabricated by a facile hydrothermal method, followed by photo-reduction of Pt(acac)2 on B,F-codoped TiO2 with reactive facets. The as-prepared photocatalysts were characterised by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic hydrogen production performance was systematically investigated under UV-visible irradiation. The parametric results indicate that the TiO2 nanosheet structure, Pt loading and photocatalyst concentration have significant impacts on the photocatalytic hydrogen production. The highest hydrogen production rate obtained is 5,086 μmol h-1g-1.

Enhanced Performance and Stability for Photocatalytic Hydrogen Production of Cubic CdS by Combining with MoS2 and g-C3N4

NANO ◽  
2022 ◽  
Author(s):  
Kaiyue Liang ◽  
Mingcai Yin ◽  
Yixian Li ◽  
Yaoting Fan ◽  
Zhongjun Li
Keyword(s):  
Hydrogen Production ◽  
High Performance ◽  
Carbon Nitride ◽  
Room Temperature ◽  
Production Performance ◽  
Graphitic Carbon Nitride ◽  
Ternary Composite ◽  
Photocatalytic Hydrogen Production ◽  
Cubic Cds

CdS and MoS2 are both promising photocatalytic materials for hydrogen production and lots of MoS2/CdS composites have been investigated. However, most of the previous work focused on relatively stable hexagonal CdS; researches on cubic CdS are still rare mainly due to its unstability. Then in this paper, a ternary composite MoS2/CN/CdS composed of cubic CdS, MoS2 and graphitic carbon nitride (g-C3N4, abbreviated as CN) was prepared by simple in situ precipitation of cubic CdS on MoS2/CN at room temperature. Based on a series of characterizations, the photocatalytic hydrogen production performance of MoS2/CN/CdS was studied. The results showed that when the amount of MoS2/CN was 10 wt.%, the activity reached 1253.2 [Formula: see text]mol h[Formula: see text], about 110 times that of pure CdS. Especially, its stability was investigated in detail by cyclic hydrogen production tests, which indicated that although the activity decreased after the first cycle, it was stable in the following three cycles mainly due to the existence of CN. Namely, a relatively stable and high performance cubic CdS-based ternary composite was achieved. This research can provide some new insights into the design of cubic CdS-based photocatalysts.

Enhanced Photocatalytic Hydrogen-Production Performance of Graphene-ZnxCd1−xS Composites by Using an Organic S Source

2013 ◽  
Vol 20 (4) ◽  
pp. 1176-1185 ◽  
Author(s):  
Qin Li ◽  
Huan Meng ◽  
Jiaguo Yu ◽  
Wei Xiao ◽  
Yingqiu Zheng ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Production Performance ◽  
Photocatalytic Hydrogen Production ◽  
Organic S
Sign in / Sign up

Export Citation Format

Share Document