Hydrothermal Synthesis g-C3N4/Nano-InVO4 Nanocomposites and Enhanced Photocatalytic Activity for Hydrogen Production under Visible Light Irradiation

2015 ◽  
Vol 7 (33) ◽  
pp. 18247-18256 ◽  
Author(s):  
Bo Hu ◽  
Fanpeng Cai ◽  
Tianjun Chen ◽  
Mingshan Fan ◽  
Chengjie Song ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Hydrogen Production ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation

Improving the photocatalytic hydrogen production of Ag/g-C3N4 nanocomposites by dye-sensitization under visible light irradiation

Nanoscale ◽  
2016 ◽  
Vol 8 (4) ◽  
pp. 2249-2259 ◽  
Author(s):  
Jiayi Qin ◽  
Jingpei Huo ◽  
Piyong Zhang ◽  
Jian Zeng ◽  
Tingting Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Dye Sensitization ◽  
Photocatalytic Hydrogen Production

Fluorescein-sensitized Ag/g-C3N4 nanocomposites have a remarkably enhanced photocatalytic activity for hydrogen production under visible light.

Enhanced hydrogen production by carbon-doped TiO2 decorated with reduced graphene oxide (rGO) under visible light irradiation

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2479-2488 ◽  
Author(s):  
Liyuan Kuang ◽  
Wen Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Hydrogen Production ◽  
Visible Light ◽  
Reduced Graphene Oxide ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Hybrid Nanocomposite ◽  
Carbon Doped ◽  
Reduced Graphene

Carbon doped TiO2 anchored to reduced graphene oxide formed a hybrid nanocomposite (C-TiO2/rGO) that exhibited greater photocatalytic activity and stability.

Facile hydrothermal synthesis of NaTaO3 with high photocatalytic activity

2019 ◽  
Vol 33 (14n15) ◽  
pp. 1940046 ◽  
Author(s):  
Min Yen Yeh ◽  
Jun Hong Li ◽  
Shun Hsyung Chang ◽  
Shiow Yueh Lee ◽  
Huichun Huang
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Perovskite Structure ◽  
Hydrothermal Reaction ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Orthorhombic Perovskite

Orthorhombic perovskite structure NaTaO3 with cube shape was successfully synthesized by hydrothermal reaction. The as-prepared NaTaO3 behaves a great photocatalystic activity on degradation of MB solution not only under UV but also visible light irradiation.

The enhanced photocatalytic activity of g-C3N4-LaFeO3 for the water reduction reaction through a mediator free Z-scheme mechanism

2017 ◽  
Vol 4 (6) ◽  
pp. 1022-1032 ◽  
Author(s):  
S. Acharya ◽  
S. Mansingh ◽  
K. M. Parida
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Reduction Reaction ◽  
Light Irradiation ◽  
Water Reduction ◽  
Solid Interface

A g-C3N4/LaFeO3 solid–solid interface showing enhanced hydrogen production ability under visible-light irradiation through a mediator free Z-Scheme mechanism.

scholarly journals Photocatalytic Hydrogen Production from Water on Ga, Sn-Doped ZnS under Visible Light Irradiation

2014 ◽  
Vol 925 ◽  
pp. 200-204
Author(s):  
Leny Yuliati ◽  
Melody Kimi ◽  
Mustaffa Shamsuddin
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Band Gap ◽  
Visible Light Irradiation ◽  
Absorption Edge ◽  
Band Gap Energy ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Production ◽  
Gap Energy

Zinc sulfide (ZnS) has been reported to act as a photocatalyts to reduce water to hydrogen. However, ZnS could not work under visible light irradiation due to its large band gap energy. In order to improve the performance of ZnS, Ga and Sn were doped to ZnS. The series of Ga (0.1),Sn (x)-ZnS with various amounts of Sn (x) was prepared by hydrothermal method. XRD patterns suggested that the addition of Ga might reduce the crystallinity of ZnS, suggesting that Ga might inhibit the crystal growth or agglomeration of ZnS. On the other hand addition of Sn did not much affect the structure of the Ga (0.1)-ZnS. The DR UU-visible spectra confirmed the red shift of the absorption edge with the addition of Ga due to the reduced band gap energy, while the addition of Sn did not much shift the absorption edge of the Ga (0.1)-ZnS to longer wavelength. FESEM images showed that all the prepared samples have sphere-shaped particles and no remarkable change was observed with the addition of Ga or Sn. The photocatalytic hydrogen production from water was carried out at room temperature in the presence of sacrificial agent under visible light irradiation. While ZnS did not show activity under visible light, all the prepared Ga (0.1)-ZnS and Ga (0.1),Sn (x)-ZnS samples exhibited photocatalytic activity for hydrogen production. The highest hydrogen production was achieved on Ga (0.1),Sn (0.01)-ZnS, which activity was ca. three times higher than that of the single doped Ga (0.1)-ZnS. This study clearly showed that Sn acted as a good co-dopant to increase the photocatalytic activity of Ga (0.1)-ZnS for hydrogen production from water under visible light irradiation.

scholarly journals Preparation of High Activity Ga and Cu Doped ZnS by Hydrothermal Method for Hydrogen Production under Visible Light Irradiation

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Melody Kimi ◽  
Leny Yuliati ◽  
Mustaffa Shamsuddin
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Production Rate ◽  
Hydrothermal Method ◽  
Visible Light Irradiation ◽  
Photocatalytic Property ◽  
Light Irradiation ◽  
Hydrogen Production Rate ◽  
Cu Doping

Ga(0.1),Cu(x)-ZnS (x=0.01, 0.03, 0.05) photocatalysts were successfully synthesized by hydrothermal method. The synthesized Ga and Cu codoped ZnS photocatalysts showed photocatalytic property effective for hydrogen production from aqueous solution containing Na2SO3and Na2S as sacrificial reagent under visible light irradiation. The rate of hydrogen production was found to be strongly dependent on Cu doping content. The highest photocatalytic activity is observed for Ga(0.1),Cu(0.01)-ZnS with hydrogen production rate of 114 µmol/h. The addition of Ga as codoped increased the photocatalytic activity to 58 times as compared to single doped Cu-ZnS. The Ga and Cu codoped ZnS photocatalysts are also stable under long irradiation. The enhancement in the photocatalytic activity of Ga and Cu codoped photocatalyst can be attributed to the synergistic effect between Ga and Cu. The photocatalytic activity was greatly enhanced with the addition of 0.5 wt% Ru as cocatalyst with a hydrogen production rate of 744 µmol/h.

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