Unveiling the surface precipitation effect of Ag ions in Ag-doped TiO2 nanofibers synthesized by one-step hydrothermal method for photocatalytic hydrogen production

Author(s):  
Ting-Han Lin ◽  
Ming-Chung Wu ◽  
Kuo-Ping Chiang ◽  
Yin-Hsuan Chang ◽  
Jen-Fu Hsu ◽  
...  
RSC Advances ◽  
2018 ◽  
Vol 8 (21) ◽  
pp. 11395-11402 ◽  
Author(s):  
Yilun Wu ◽  
Shan Zeng ◽  
Yanhui Dong ◽  
Yunhao Fu ◽  
Hang Sun ◽  
...  

ZnO/Zn(OH)2 macrostructure photocatalysts prepared using a one-step hydrothermal method demonstrated highly efficient photocatalytic hydrogen production.


2020 ◽  
Vol 8 (32) ◽  
pp. 11001-11007
Author(s):  
Huilin Hou ◽  
Yanfen Yuan ◽  
Sheng Cao ◽  
Yueping Yang ◽  
Xiaming Ye ◽  
...  

In this work, we devise a unique TiO2@CuInS2 heterojunction photocatalyst for boosted photocatalytic hydrogen production.


2019 ◽  
Vol 21 (8) ◽  
pp. 4501-4512 ◽  
Author(s):  
Xian Yan ◽  
Zhiliang Jin ◽  
Yupeng Zhang ◽  
Hai Liu ◽  
Xiaoli Ma

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.


Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2449
Author(s):  
Shiliang Heng ◽  
Lei Li ◽  
Weiwei Li ◽  
Haiyan Li ◽  
Jingyu Pang ◽  
...  

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.


2021 ◽  
Author(s):  
Xiang-yin Ji ◽  
Rui-tang Guo ◽  
Zhi-dong Lin ◽  
Long-fei Hong ◽  
Ye Yuan ◽  
...  

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...


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