Hydrothermal synthesis of a uniform sub-micrometer-spherical Zn0.83Cd0.17S photocatalyst with high activity for photocatalytic hydrogen production

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 51997-52003 ◽  
Author(s):  
Zhongping Yao ◽  
Yaqiong He ◽  
Qixing Xia ◽  
Han Wei ◽  
Zhaohua Jiang
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Hydrogen Production ◽  
High Activity ◽  
Production Rate ◽  
High Photocatalytic Activity ◽  
Hydrogen Production Rate ◽  
Hydrothermal Temperature ◽  
Photocatalytic Hydrogen Production

A series of Zn0.83Cd0.17S with high photocatalytic activity was hydrothermally synthesized, the best hydrogen production rate of 45.97 mmol h−1 g−1 was obtained when the hydrothermal temperature was 160 °​C and the dosage was 0.03 g.

One-pot synthesis of Cu-modified HNb3O8 nanobelts with enhanced photocatalytic hydrogen production

2018 ◽  
Vol 6 (23) ◽  
pp. 10769-10775 ◽  
Author(s):  
Yifang Zhao ◽  
Jian Li ◽  
Cong Lin ◽  
Yaming Qiu ◽  
Yanquan Yang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Hydrogen Production ◽  
One Pot ◽  
Photocatalytic Hydrogen Production ◽  
One Pot Synthesis

Cu-doped HNb3O8 nanobelts were obtained by one-pot hydrothermal synthesis and enhanced the photocatalytic activity (8 times) significantly.

Rare earth element, Sm, modified graphite phase carbon nitride heterostructure for photocatalytic hydrogen production

2019 ◽  
Vol 43 (4) ◽  
pp. 1716-1724 ◽  
Author(s):  
Lingjiao Li ◽  
Hai Yu ◽  
Jing Xu ◽  
Sheng Zhao ◽  
Zeying Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Rare Earth ◽  
Hydrogen Production ◽  
Rare Earth Element ◽  
Carbon Nitride ◽  
Earth Element ◽  
High Photocatalytic Activity ◽  
Graphite Phase ◽  
Photocatalytic Hydrogen Production ◽  
New Type

A new type of Sm2O3@Ni7S6/g-C3N4 composite has high photocatalytic activity and stability.

Preparation and Modification of Y2Cu2O5/Y2O3 Photocatalysts for H2 Evolution under Simulated Sunlight Irradiation

2011 ◽  
Vol 239-242 ◽  
pp. 3001-3004 ◽  
Author(s):  
Li Zhang ◽  
Ke Long Huang ◽  
Hao Chen ◽  
Jian Hui Yan
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Production Rate ◽  
Hydrogen Reduction ◽  
Sol Gel ◽  
Oxalic Acid Solution ◽  
Impregnation Method ◽  
Simulated Sunlight ◽  
Hydrogen Production Rate ◽  
Sunlight Irradiation

Y2Cu2O5/Y2O3 (YCO) photocatalysts were prepared using sol-gel method. The photocatalysts were modified by Pt particles to prepare Pt-loaded composite (Pt-YCO) using hydrogen reduction method, and NiO/YCO were synthesized by impregnation method. These obtained samples were characterized by thermogravimetry and differential thermal analysis (TG/DTA), X-ray diffraction (XRD), and ultraviolet visible diffuse reflectance absorption spectra (UV-Vis DRS) techniques. Photocatalytic H2 evolution activity of the modified photocatalysts has been evaluated from aqueous oxalic acid solution used as sacrificial reagent under simulated sunlight irradiation. The result showed that when the concentration of the photocatalysts is 0.8 g·L-1， Pt-YCO photocatalyst exhibits higher photocatalytic activity compared with unloaded YCO. The hydrogen production rate is 4.12 mmol·h-1·g-1 with 1wt% loading amount of Pt, while the loading content is up to 2.5wt%, the hydrogen production rate of Pt-YCO photocatalyst deecreased instead. Whereas NiO/YCO composite exhibits less photocatalytic activity than that of pure YCO under the same conditions.

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.

Largely enhanced photocatalytic hydrogen production rate of CdS/(Au–ReS2) nanospheres by the dielectric–plasmon hybrid antenna effect

Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19586-19594 ◽  
Author(s):  
Jia Liu ◽  
Kai Chen ◽  
Gui-Ming Pan ◽  
Zhi-Jun Luo ◽  
Ying Xie ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Production Rate ◽  
Hydrogen Production Rate ◽  
Antenna Effect ◽  
Photocatalytic Hydrogen Production ◽  
Highly Efficient ◽  
Production Activity

CdS/(Au–ReS2) nanospheres that have highly efficient photocatalytic hydrogen production activity induced by dielectric–plasmon hybrid antenna resonance are synthesized.

Facile preparation of yttrium and aluminum co-doped ZnO via a sol–gel route for photocatalytic hydrogen production

2014 ◽  
Vol 2 (29) ◽  
pp. 11040-11044 ◽  
Author(s):  
Jingpei Huo ◽  
Liting Fang ◽  
Yaling Lei ◽  
Gongchang Zeng ◽  
Heping Zeng
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Photocatalytic Hydrogen Production ◽  
Gel Method ◽  
Facile Preparation ◽  
Doped Zno ◽  
Co Doped ◽  
Excellent Stability

Yttrium and aluminum co-doped ZnO were successfully synthesized by the sol–gel method. The obtained products showed high photocatalytic activity for hydrogen production (5.71 mmol h−1 g−1), and exhibited excellent stability and recyclability.

Photocatalytic hydrogen production of the CdS/TiO2-WO3 ternary hybrid under visible light irradiation

2015 ◽  
Vol 73 (7) ◽  
pp. 1667-1672 ◽  
Author(s):  
Yi-Lin Chen ◽  
Shang-Lien Lo ◽  
Hsiang-Ling Chang ◽  
Hsiao-Mei Yeh ◽  
Liping Sun ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Production Rate ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Platinum Metal ◽  
Light Irradiation ◽  
Hydrogen Energy ◽  
Hydrogen Production Rate ◽  
Photocatalytic Hydrogen Production

An attractive and effective method for converting solar energy into clean and renewable hydrogen energy is photocatalytic water splitting over semiconductors. The study aimed at utilizing organic sacrificial agents in water, modeled by formic acid, in combination with visible light driven photocatalysts to produce hydrogen with high efficiencies. The photocatalytic hydrogen production of cadmium sulfide (CdS)/titanate nanotubes (TNTs) binary hybrid with specific CdS content was investigated. After visible light irradiation for 3 h, the hydrogen production rate of 25 wt% CdS/TNT achieved 179.35 μmol·h−1. Thanks to the two-step process, CdS/TNTs-WO3 ternary hybrid can better promote the efficiency of water splitting compared with CdS/TNTs binary hybrid. The hydrogen production of 25 wt% CdS/TNTs-WO3 achieved 212.68 μmol·h−1, under the same condition. Coating of platinum metal onto the WO3 could further promote the reaction. Results showed that 0.2 g 0.1 wt% Pt/WO3 + 0.2 g 25 wt% CdS/TNTs had the best hydrogen production rate of 428.43 μmol·h−1. The resultant materials were well characterized by high-resolution transmission electron microscope, X-ray diffraction, scanning electron microscopy, and UV-Vis spectra.

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