The synergy between Ti species and g-C3N4 by doping and hybridization for the enhancement of photocatalytic H2 evolution

2015 ◽  
Vol 44 (40) ◽  
pp. 17859-17866 ◽  
Author(s):  
Xiao-jing Wang ◽  
Xiao Tian ◽  
Fa-tang Li ◽  
Jun Zhao ◽  
Yu-pei Li ◽  
...  
Keyword(s):  
Low Temperature ◽  
H2 Evolution ◽  
Hydrothermal Route ◽  
Photocatalytic H2 Evolution

A Ti species modified g-C3N4 photocatalyst was synthesized via an in situ hydrothermal route and the subsequent low-temperature calcination.

In-situ synthesis of amorphous H2TiO3-modified TiO2 and its improved photocatalytic H2-evolution performance

2018 ◽  
Vol 532 ◽  
pp. 272-279 ◽  
Author(s):  
Ping Wang ◽  
Xiaoqing Yi ◽  
Yanggang Lu ◽  
Huogen Yu ◽  
Jiaguo Yu
Keyword(s):  
In Situ Synthesis ◽  
H2 Evolution ◽  
Photocatalytic H2 Evolution

MOF‑derived porous TiO2 decorated with n-type Cu2O for efficient photocatalytic H2 evolution

2021 ◽  
Author(s):  
Xue Bai ◽  
Bo Liu ◽  
Wei Zhang ◽  
Yang Wang ◽  
Yu Yu ◽  
...  
Keyword(s):  
Mesoporous Tio2 ◽  
Light Irradiation ◽  
H2 Evolution ◽  
Reduction Strategy ◽  
Porous Tio2 ◽  
Photocatalytic H2 Evolution ◽  
Hybrid Photocatalyst

A porous Cu2O/TiO2 hybrid photocatalyst with n-type Cu2O decorated on the mesoporous TiO2 derived from MIL-125 was designed through the in situ Cu2+ ions reduction strategy. Under UV-vis light irradiation,...

scholarly journals Photocatalytic H2 Evolution on TiO2 Assembled with Ti3C2 MXene and Metallic 1T-WS2 as Co-catalysts

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Yujie Li ◽  
Lei Ding ◽  
Shujun Yin ◽  
Zhangqian Liang ◽  
Yanjun Xue ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Surface Area ◽  
Active Site ◽  
Tungsten Disulfide ◽  
Transfer Efficiency ◽  
H2 Evolution ◽  
Co Catalysts ◽  
Efficient Separation ◽  
Photocatalytic H2 Evolution

AbstractThe biggest challenging issue in photocatalysis is efficient separation of the photoinduced carriers and the aggregation of photoexcited electrons on photocatalyst’s surface. In this paper, we report that double metallic co-catalysts Ti3C2 MXene and metallic octahedral (1T) phase tungsten disulfide (WS2) act pathways transferring photoexcited electrons in assisting the photocatalytic H2 evolution. TiO2 nanosheets were in situ grown on highly conductive Ti3C2 MXenes and 1T-WS2 nanoparticles were then uniformly distributed on TiO2@Ti3C2 composite. Thus, a distinctive 1T-WS2@TiO2@Ti3C2 composite with double metallic co-catalysts was achieved, and the content of 1T phase reaches 73%. The photocatalytic H2 evolution performance of 1T-WS2@TiO2@Ti3C2 composite with an optimized 15 wt% WS2 ratio is nearly 50 times higher than that of TiO2 nanosheets because of conductive Ti3C2 MXene and 1T-WS2 resulting in the increase of electron transfer efficiency. Besides, the 1T-WS2 on the surface of TiO2@Ti3C2 composite enhances the Brunauer–Emmett–Teller surface area and boosts the density of active site.

In situ synthesis of Co2P-decorated red phosphorus nanosheets for efficient photocatalytic H2 evolution

2020 ◽  
Vol 10 (7) ◽  
pp. 2221-2230 ◽  
Author(s):  
Chenyang Li ◽  
Mian Fu ◽  
Yan Wang ◽  
Enzhou Liu ◽  
Jun Fan ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
In Situ Synthesis ◽  
Microporous Structure ◽  
Red Phosphorus ◽  
H2 Evolution ◽  
Co Catalyst ◽  
Photocatalytic H2 Evolution

The Co2P as co-catalyst was firstly loaded on the 2D microporous structure RP surface by in situ hydrothermal method.

scholarly journals Hydrothermal Synthesis of rGO/PbTiO3 Photocatalyst and Its Photocatalytic H2 Evolution Activity

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Chunyan Wang ◽  
Lianwei Shan ◽  
Dongyuan Song ◽  
Yanwei Xiao ◽  
Jagadeesh Suriyaprakash
Keyword(s):  
Photocatalytic Performance ◽  
H2 Evolution ◽  
X Ray Diffraction ◽  
Hydrothermal Route ◽  
X Ray ◽  
Transmission Electron ◽  
Reduced Graphene ◽  
Efficient Charge ◽  
One Step ◽  
Photocatalytic H2 Evolution

In this letter, we investigated the photocatalytic activity of the newly formed rGO/PbTiO3 composites, which are synthesized by a one-step hydrothermal route. By adjusting the amount of reduced graphene oxide (rGO) (0, 0.15, 0.30, 0.60, and 1.20 wt%) with the PbTiO3, we constructed various photocatalysts for this investigation. The crystal structure and morphology of the various composites were studied by powder X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). Photoelectron spectroscopic study revealed that the band structure of the newly formed composites and efficient charge separation can be obtained by the interfaces of various rGO content. In addition, the photocatalytic performance of the synthesized composites was explored by H2 evolution and rhodamine blue (RhB) degradation. The obtained results indicated that the addition of the appropriate amount of rGO could improve the activity of pure PbTiO3, significantly.

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