Modulating photogenerated electron transfer with selectively exposed Co–Mo facets on a novel amorphous g-C3N4/CoxMo1−xS2 photocatalyst

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23709-23717 ◽  
Author(s):  
Xuqiang Hao ◽  
Zhiliang Jin ◽  
Shixiong Min ◽  
Gongxuan Lu
Keyword(s):  
Electron Transfer ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Photogenerated Electron ◽  
Photocatalytic Hydrogen Evolution ◽  
Exposed Facets

Novel photocatalysts, g-C3N4/Co0.04Mo0.96S2 with different exposed facets of Co–Mo, were employed as catalysts for the examination of facet-dependent catalytic activity toward photocatalytic hydrogen evolution.

Hydrazine-assisted formation of ultrathin MoS2 nanosheets for enhancing their co-catalytic activity in photocatalytic hydrogen evolution

2017 ◽  
Vol 5 (15) ◽  
pp. 6981-6991 ◽  
Author(s):  
D. Amaranatha Reddy ◽  
Hanbit Park ◽  
Sangyeob Hong ◽  
D. Praveen Kumar ◽  
Tae Kyu Kim
Keyword(s):  
Electrical Conductivity ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Active Sites ◽  
Mos2 Nanosheets ◽  
Photocatalytic Hydrogen Evolution ◽  
Ultrathin Mos2 Nanosheets

This work demonstrates a simple and effective approach using hydrazine to modulate the active sites and electrical conductivity of MoS2 with the aid of ultrasonication.

scholarly journals Mechanism of a one-photon two-electron process in photocatalytic hydrogen evolution from ascorbic acid with a cobalt chlorin complex

2015 ◽  
Vol 51 (82) ◽  
pp. 15145-15148 ◽  
Author(s):  
Shoko Aoi ◽  
Kentaro Mase ◽  
Kei Ohkubo ◽  
Shunichi Fukuzumi
Keyword(s):  
Electron Transfer ◽  
Ascorbic Acid ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Electron Process

A one-photon two-electron process was made possible in photocatalytic H2 evolution from ascorbic acid with a cobalt(ii) chlorin complex via electron transfer.

Enhanced production of H2 under visible light via co-deposited Pt and Ir species on g-C3N4

2020 ◽  
Vol 10 (18) ◽  
pp. 6378-6386
Author(s):  
Chen Chen ◽  
Jianjun Zhao ◽  
Yiming Xu
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Hole Transfer ◽  
Photocatalytic Hydrogen Evolution ◽  
Enhanced Production ◽  
Mediated Electron Transfer

Synergism between PtO-mediated electron transfer and IrO2-mediated hole transfer enhanced the photocatalytic hydrogen evolution of g-C3N4.

scholarly journals Efficient Photocatalytic Hydrogen Evolution over TiO2-X Mesoporous Spheres-ZnO Nanorods Heterojunction

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2096
Author(s):  
BingKe Zhang ◽  
Qi Li ◽  
Dongbo Wang ◽  
Jinzhong Wang ◽  
Baojiang Jiang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Spectral Response ◽  
Zno Nanorods ◽  
Photogenerated Electron ◽  
Pure Tio2 ◽  
Mechanism Analysis ◽  
Photocatalytic Hydrogen Evolution ◽  
Novel Structure

Photocatalytic water splitting into hydrogen is regarded as one of the key solutions to the deterioration of the global environment and energy. Due to the significantly reduced grain boundaries, ZnO nanorods facilitate a fast electron transfer through their smooth tunnels and are well suited as a photocatalyst. However, the photocatalytic hydrogen evolution performance of pristine ZnO nanorods is still low due to the high recombination rate of photogenerated electron-hole pairs and the less light absorption. Here, a novel structure about black ZnO nanorods (NRs)/TiO2-X mesoporous spheres (MSs) heterojunction has been prepared and the photocatalytic hydrogen evolution performance has been explored. The photocatalytic activity test results showed that ZnO NRs/TiO2-X MSs exhibited higher catalytic activity than ZnO NRs for hydrogen production. Compared to the pure ZnO NRs photoanode, the photocurrent of ZnO NRs/TiO2-X MSs heterojunction photoanode could reach 0.41 mA/cm2 in view of the expanding spectral response region and effective inhibition of e−/h+ recombination at the same condition. Using a relatively integrated experimental investigation and mechanism analysis, we scrutinized that after being treated with NaBH4, TiO2 MSs introduce oxygen vacancies expanding the photocatalytic activity of pure TiO2, and improving conductivity and charge transport capabilities through coating on ZnO NRs. More importantly, the results provide a promising approach in the NRs/MSs composite structure serving as photoanodes for photocatalytic hydrogen production.

Sign in / Sign up

Export Citation Format

Share Document