scholarly journals In situ constructed oxygen-vacancy-rich MoO3−x/porous g-C3N4 heterojunction for synergistically enhanced photocatalytic H2 evolution

RSC Advances ◽  
2021 ◽  
Vol 11 (50) ◽  
pp. 31219-31225
Author(s):  
Yufeng Pan ◽  
Bin Xiong ◽  
Zha Li ◽  
Yan Wu ◽  
Chunjie Yan ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Active Sites ◽  
H2 Evolution ◽  
Migration Distance ◽  
Growth Method ◽  
Photocatalytic H2 Evolution

In situ growth method to construct a nano-sized oxygen-vacancy-rich MoO3−x/porous g-C3N4 heterojunction. MoO3−x derived OV traps and porous g-C3N4 nanosheet derived short migration distance and plentiful edge active sites.

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

Enhanced photocatalytic H2 evolution over micro-SiC by coupling with CdS under visible light irradiation

2014 ◽  
Vol 2 (18) ◽  
pp. 6296-6300 ◽  
Author(s):  
Yuan Peng ◽  
Zhongnan Guo ◽  
Jingjing Yang ◽  
Da Wang ◽  
Wenxia Yuan
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Active Sites ◽  
Fine Tuning ◽  
Surface Activation ◽  
H2 Evolution ◽  
Effective Surface ◽  
Suitable Amount ◽  
Surface Active ◽  
Photocatalytic H2 Evolution

Fine-tuning surface activation of the micro-SiC catalyst via hybridizing a suitable amount of CdS to obtain effective surface active sites.

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,...

Photocatalytic reforming of glycerol for H2 evolution on Pt/TiO2: fundamental understanding the effect of co-catalyst Pt and the Pt deposition route

2015 ◽  
Vol 3 (5) ◽  
pp. 2271-2282 ◽  
Author(s):  
Xiaoliang Jiang ◽  
Xianliang Fu ◽  
Li Zhang ◽  
Sugang Meng ◽  
Shifu Chen
Keyword(s):  
Active Sites ◽  
H2 Evolution ◽  
Co Catalyst ◽  
Fundamental Understanding

The effects of deposited Pt and its deposition route on the photocatalytic reforming of glycerol for H2 evolution over Pt/TiO2 were investigated. Intimately loaded Pt(0) particles are the key active sites for the reaction, the formation of which was favored by an in situ photo-deposition route.

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.

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