scholarly journals TiOxNy/TiO2 Photocatalyst for Hydrogen Evolution under Visible Light Irradiation II Degradation of Photocatalytic Activity of TiOxNy/TiO2 with Mild Oxidation

ACS Omega ◽  
2019 ◽  
Vol 4 (24) ◽  
pp. 20430-20434
Author(s):  
Akiyo Ozawa ◽  
Muneaki Yamamoto ◽  
Tetsuo Tanabe ◽  
Tomoko Yoshida
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Mild Oxidation ◽  
Tio2 Photocatalyst

CdS/Ag2S/g-C3N4 ternary composites with superior photocatalytic performance for hydrogen evolution under visible light irradiation

2021 ◽  
Vol 50 (9) ◽  
pp. 3253-3260 ◽  
Author(s):  
Shan Zhao ◽  
Junbiao Wu ◽  
Yan Xu ◽  
Xia Zhang ◽  
Yide Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Synergic Effect

CdS/Ag2S/g-C3N4 ternary composites showed excellent photocatalytic performance toward H2 evolution. Their improved photocatalytic activity could be attributed not only to the synergic effect, but also to the introduction of Ag2S.

scholarly journals Synergetic Effect of In and Ag Co-Doped ZnS for Enhanced Photocatalytic Hydrogen Evolution under Visible Light Irradiation

2014 ◽  
Vol 1024 ◽  
pp. 368-371 ◽  
Author(s):  
Melody Kimi ◽  
Leny Yuliati ◽  
Mustaffa Shamsuddin
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Absorption ◽  
Synergetic Effect ◽  
Band Gap Energy ◽  
Light Irradiation ◽  
Efficient Charge ◽  
Co Doped

In and Ag co-doped ZnS photocatalysts were successfully prepared by hydrothermal method to extend the light absorption of ZnS to the visible light region. The concentration of In was constant while for Ag was varied to optimize the photocatalytic activity. The In and Ag co-doped ZnS photocatalysts showed smaller band gap energy compared to single doped In (0.1)-ZnS and undoped ZnS. The photocatalytic activity of In and Ag co-doped ZnS photocatalysts was evaluated from the amount of hydrogen produced. The hydrogen evolution rate from aqueous solution containing Na2SO3 and Na2S as sacrificial reagent under visible light irradiation obtained from In and Ag co-doped ZnS is higher compared to the single doped In (0.1)-ZnS when optimum amount of Ag dopant was added. The highest photocatalytic activity is observed for In (0.1),Ag (0.01)-ZnS with hydrogen production rate of 26.82 μmol/h. The higher performance of this photocatalyst is ascribed to the extended visible light absorption, efficient charge separation as well as improved electron transfer associated with synergistic effect of appropriate amount of In and Ag co-doped ZnS.

Porous and low-defected graphitic carbon nitride nanotubes for efficient hydrogen evolution under visible light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (124) ◽  
pp. 102700-102706 ◽  
Author(s):  
Zhijun Huang ◽  
Fengbo Li ◽  
Bingfeng Chen ◽  
Guoqing Yuan
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Electronic Properties ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Optical And Electronic Properties

Porous and low-defected g-C3N4 nanotubes with high SBET and optimized optical and electronic properties exhibit enhanced photocatalytic activity.

Study of Cyclohexane Photooxidation over Pt-WO3 Catalysts Mixed with TiO2 under Visible Light Irradiation

2010 ◽  
Vol 658 ◽  
pp. 149-152 ◽  
Author(s):  
Yuichi Ichihashi ◽  
Shingo Saijo ◽  
Masaaki Taniguchi ◽  
Keita Taniya ◽  
Satoru Nishiyama
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Visible Light ◽  
Tungsten Oxide ◽  
Visible Light Irradiation ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Tio2 Photocatalyst ◽  
Physical Mixing ◽  
Platinum Loading

The photooxidation of cyclohexane to cyclohexanone, cyclohexanol and CO2 was carried out by visible light irradiation to tungsten oxide photocatalysts. The physical mixing of tungsten oxide and titanium oxide (WO3+TiO2) led to the high photocatalytic activity. It was speculated that the physical mixing of WO3 and TiO2 took place the charge transfer between WO3 and TiO2, and this inhibited the recombination between electrons and holes on the WO3 surface. The platinum loading on WO3 further developed the photocatalytic activity of WO3+TiO2 photocatalyst. Hence, the degree of the recombination between electrons and holes may dominate the photocatalytic activity of cyclohexane oxidation.

Integrating Mn-ZIF-67 on hollow spherical CdS photocatalysts forming a unique interfacial structure for the efficient photocatalytic hydrogen evolution and degradation under visible light

2020 ◽  
Vol 7 (9) ◽  
pp. 2809-2822
Author(s):  
Dan You ◽  
Dajun Shi ◽  
Qingrong Cheng ◽  
Yanling Chen ◽  
Zhiquan Pan
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Interfacial Structure ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Excellent Photocatalytic Activity

CdS@Mn-ZIF-67 heterojunction photocatalyst exhibited excellent photocatalytic activity for TC degradation and hydrogen evolution under visible light irradiation and are more effective than the single Mn-ZIF-67 or the hollow CdS nanospheres.

Gold nanoparticles embedded in Ta2O5/Ta3N5 as active visible-light plasmonic photocatalysts for solar hydrogen evolution

2014 ◽  
Vol 2 (36) ◽  
pp. 14927-14939 ◽  
Author(s):  
Yujing Luo ◽  
Xiaoming Liu ◽  
Xinghua Tang ◽  
Yan Luo ◽  
Qianyao Zeng ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Solar Hydrogen

A Nano Au/Ta2O5 composite shows a new recreating photocatalytic activity for hydrogen evolution from water in response to visible light irradiation.

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