Controllable design of double metal oxide (NiCo2O4)-modified CdS for efficient photocatalytic hydrogen production

2019 ◽  
Vol 21 (8) ◽  
pp. 4501-4512 ◽  
Author(s):  
Xian Yan ◽  
Zhiliang Jin ◽  
Yupeng Zhang ◽  
Hai Liu ◽  
Xiaoli Ma
Keyword(s):  
High Temperature ◽  
Hydrogen Production ◽  
Metal Oxide ◽  
Hydrothermal Method ◽  
High Efficiency ◽  
Composite Photocatalyst ◽  
Photocatalytic Hydrogen Production ◽  
High Temperature Calcination

In the present study, we have successfully synthesized a kind of high-efficiency NiCo2O4/CdS composite photocatalyst using the hydrothermal method and high-temperature calcination.

scholarly journals Enhanced Photocatalytic Hydrogen Production of the Polyoxoniobate Modified with RGO and PPy

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2449
Author(s):  
Shiliang Heng ◽  
Lei Li ◽  
Weiwei Li ◽  
Haiyan Li ◽  
Jingyu Pang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Active Sites ◽  
High Efficiency ◽  
Solvothermal Method ◽  
H2 Production ◽  
H2 Evolution ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Production ◽  
Reduced Graphene ◽  
One Step

The development of high-efficiency, recyclable, and inexpensive photocatalysts for water splitting for hydrogen production is of great significance to the application of solar energy. Herein, a series of graphene-decorated polyoxoniobate photocatalysts Nb6/PPy-RGO (Nb6 = K7HNb6O19, RGO = reduced graphene oxide, PPy = polypyrrole), with the bridging effect of polypyrrole were prepared through a simple one-step solvothermal method, which is the first example of polyoxoniobate-graphene-based nanocomposites. The as-fabricated photocatalyst showed a photocatalytic H2 evolution activity without any co-catalyst. The rate of 1038 µmol g−1 in 5 h under optimal condition is almost 43 times higher than that of pure K7HNb6O19·13H2O. The influencing factors for photocatalysts in photocatalytic hydrogen production under simulated sunlight were studied in detail and the feasible mechanism is presented in this paper. These results demonstrate that Nb6O19 acts as the main catalyst and electron donor, RGO provides active sites, and PPy acted as an electronic bridge to extend the lifetime of photo-generated carriers, which are crucial factors for photocatalytic H2 production.

Ni-MOF-74 derived nickel phosphide and In2O3 form S-scheme heterojunction for efficient hydrogen evolution

2021 ◽  
Author(s):  
Xudong Jiang ◽  
Mei Li ◽  
Hongying Li ◽  
Zhiliang Jin
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Production System ◽  
Nickel Phosphide ◽  
Electron Hole ◽  
Composite Photocatalyst ◽  
Photocatalytic Hydrogen Production

S-scheme heterojunction is a new photocatalytic hydrogen production system, which can effectively eliminate useless electron-hole pairs and improve the efficiency of photocatalytic hydrogen production. In this paper, Ni-MOF-P(Ni2P)/In2O3 composite photocatalyst...

NiS co-catalyst decorated Zn3In2S6/g-C3N4 type-II ball-flower like nanosphere heterojunction for efficient photocatalytic hydrogen production

2021 ◽  
Author(s):  
Xiang-yin Ji ◽  
Rui-tang Guo ◽  
Zhi-dong Lin ◽  
Long-fei Hong ◽  
Ye Yuan ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Charge Carrier ◽  
Hydrothermal Method ◽  
Type Ii ◽  
Electron Hole ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Production ◽  
Carrier Transfer

Promoting the separation of photo-generated electron-hole pairs and enhancing the charge carrier transfer are critical in photocatalysis. In our work, ball-flower like NiS/Zn3In2S6/g-C3N4 photocatalyst fabricated by hydrothermal method exhibited superior...

Sign in / Sign up

Export Citation Format

Share Document