One-step hydrothermal synthesis of Zn x Cd 1−x S/ZnO heterostructures for efficient photocatalytic hydrogen production

2016 ◽  
Vol 41 (34) ◽  
pp. 15208-15217 ◽  
Author(s):  
Xu Guo ◽  
Yubin Chen ◽  
Zhixiao Qin ◽  
Menglong Wang ◽  
Liejin Guo
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrogen Production ◽  
Photocatalytic Hydrogen Production ◽  
One Step

One-pot synthesis of Cu-modified HNb3O8 nanobelts with enhanced photocatalytic hydrogen production

2018 ◽  
Vol 6 (23) ◽  
pp. 10769-10775 ◽  
Author(s):  
Yifang Zhao ◽  
Jian Li ◽  
Cong Lin ◽  
Yaming Qiu ◽  
Yanquan Yang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Hydrogen Production ◽  
One Pot ◽  
Photocatalytic Hydrogen Production ◽  
One Pot Synthesis

Cu-doped HNb3O8 nanobelts were obtained by one-pot hydrothermal synthesis and enhanced the photocatalytic activity (8 times) significantly.

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.

Enhanced photocatalytic hydrogen production from Y2O3/TiO2 nano-composites: a comparative study on hydrothermal synthesis with and without an ionic liquid

2016 ◽  
Vol 40 (4) ◽  
pp. 3578-3587 ◽  
Author(s):  
T. N. Ravishankar ◽  
M. de Oliveira Vaz ◽  
S. Khan ◽  
T. Ramakrishnappa ◽  
S. R. Teixeira ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Hydrothermal Synthesis ◽  
Hydrogen Production ◽  
Comparative Study ◽  
Nano Composites ◽  
Photocatalytic Hydrogen Production ◽  
Hydrothermal Methods

The synthesis of Y2O3/TiO2 nano-composites via hydrothermal and ionic liquid assisted hydrothermal methods, for photocatalytic hydrogen production.

scholarly journals Hydrogen production from methanol aqueous solution by ZnO/Zn(OH)2 macrostructure photocatalysts

RSC Advances ◽  
2018 ◽  
Vol 8 (21) ◽  
pp. 11395-11402 ◽  
Author(s):  
Yilun Wu ◽  
Shan Zeng ◽  
Yanhui Dong ◽  
Yunhao Fu ◽  
Hang Sun ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Production ◽  
Hydrothermal Method ◽  
Photocatalytic Hydrogen Production ◽  
Highly Efficient ◽  
One Step

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

Facile One-Step Preparation and Efficient Photocatalytic Hydrogen Production of Composite MoS2/g-C3N4 Sensitized by Erythrosin B

NANO ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. 2050127
Author(s):  
Mingcai Yin ◽  
Yixian Li ◽  
Kaiyue Liang ◽  
Jiangfan Sun ◽  
Yaoting Fan ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Photophysical Properties ◽  
Production Performance ◽  
One Pot ◽  
Photocatalytic Hydrogen Production ◽  
Erythrosin B ◽  
Production Activity ◽  
One Step ◽  
Calcination Method ◽  
First Time

MoS2/g-C3N4 (g-C3N4 [Formula: see text] graphitic carbon nitride) composite is considered as a promising photocatalyst for hydrogen production, while the preparation method still needs to be improved. Herein for the first time, nanosized MoS3 and melamine were used as starting materials and a facile one-pot calcination method was successfully applied for the synthesis of MoS2/g-C3N4. The physical and photophysical properties of the as-prepared MoS2/g-C3N4 were characterized by XRD, IR, SEM, TEM and XPS techniques. Sensitized by Erythrosin B (EB), the photocatalytic hydrogen production performance of MoS2/g-C3N4 was investigated and the amount of MoS2 was optimized. An excellent H2 production activity of 1091.2[Formula: see text][Formula: see text] was achieved for 43% MoS2/g-C3N4, which is about 330 times that of pure g-C3N4 (3.3[Formula: see text][Formula: see text]. In addition, its performance was compared with those of three other MoS2/g-C3N4 samples prepared by conventional methods and a possible mechanism of H2 production was proposed based on the photoluminescence and photoelectrochemical results.

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