Assembly of thiacalix[4]arene-supported high-nuclearity Cd24 cluster with enhanced photocatalytic activity

Nanoscale ◽  
2018 ◽  
Vol 10 (30) ◽  
pp. 14448-14454 ◽  
Author(s):  
Cheng Shi ◽  
Min Zhang ◽  
Xinxin Hang ◽  
Yanfeng Bi ◽  
Liangliang Huang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Water Splitting ◽  
Co Catalyst ◽  
Photocatalytic Water Splitting

A high-nuclearity Cd24 cluster built from Cd4-thiacalix[4]arene SBUs and in situ generated peroxyphosphate PO53− exhibited significant photocatalytic water splitting activity in absence of a co-catalyst.

Efficient Strategy to Enhance the Photocatalytic Activity of Ir-doped SrTiO3 : A Hybrid DFT Approach

2022 ◽  
Author(s):  
Brindaban Modak
Keyword(s):  
Photocatalytic Activity ◽  
Band Gap ◽  
Water Splitting ◽  
Band Gap Engineering ◽  
Photocatalytic Water Splitting ◽  
Efficient Strategy

Photocatalytic water splitting using sunlight is one of the most promising approaches to produce hydrogen, for which an increasing focus has been directed towards band gap engineering of the existing...

In-situ hydrothermal fabrication of CdS/g-C3N4 nanocomposites for enhanced photocatalytic water splitting

2019 ◽  
Vol 240 ◽  
pp. 128-131 ◽  
Author(s):  
Cong Ji ◽  
Cui Du ◽  
Jay D. Steinkruger ◽  
Chen Zhou ◽  
Shengyang Yang
Keyword(s):  
Water Splitting ◽  
Photocatalytic Water Splitting

scholarly journals Mechanism for spontaneous oxygen and hydrogen evolution reactions on CoO nanoparticles

2019 ◽  
Vol 7 (12) ◽  
pp. 6708-6719 ◽  
Author(s):  
Kyoung-Won Park ◽  
Alexie M. Kolpak
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
High Efficiency ◽  
Applied Bias ◽  
Co Catalyst ◽  
Photocatalytic Water Splitting ◽  
Overall Water Splitting ◽  
Nanoparticle Suspensions ◽  
Hydrogen Evolution Reactions ◽  
Coo Nanoparticles

Overall photocatalytic water splitting with a high efficiency has recently been observed for CoO nanoparticle suspensions in the absence of an applied bias or co-catalyst. This study clarifies the mechanism of spontaneous overall water splitting with the prominent efficiency observed on the CoO nanoparticle.

In situ topotactic fabrication of direct Z-scheme 2D/2D ZnO/ZnxCd1−xS single crystal nanosheet heterojunction for efficient photocatalytic water splitting

2018 ◽  
Vol 8 (24) ◽  
pp. 6458-6467 ◽  
Author(s):  
Jingjing Shi ◽  
Shuangde Li ◽  
Fengming Wang ◽  
Yanmei Li ◽  
Lina Gao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Single Crystal ◽  
Water Splitting ◽  
High Performance ◽  
Photocatalytic Water Splitting ◽  
Production Activity

The 2D/2D ZnO/ZnxCd1−xS single crystal nanosheet heterojunction exhibited high-performance hydrogen production activity.

Metal–organic framework assisted and in situ synthesis of hollow CdS nanostructures with highly efficient photocatalytic hydrogen evolution

2019 ◽  
Vol 48 (17) ◽  
pp. 5649-5655 ◽  
Author(s):  
Yilei Li ◽  
Tian Jin ◽  
Ge Ma ◽  
Yunchao Li ◽  
Louzhen Fan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Specific Surface ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Metal Organic Framework ◽  
In Situ Synthesis ◽  
Metal Organic ◽  
Cds Nanostructures

Hollow CdS nanoboxes with a specific surface area of 153 m2 g−1 are synthesized through in situ sulfurizing Cd-MOF-47 with thiourea, which exhibit a greatly improved photocatalytic activity in water splitting to hydrogen (21 654 μmol g−1 h−1).

Photocatalytic Hydrogen Evolution over Tantalate Photocatalysts

2006 ◽  
Vol 974 ◽  
Author(s):  
Jaturong Jitputti ◽  
Sorapong Pavasupree ◽  
Yoshikazu Suzuki ◽  
Susumu Yoshikawa
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Solid State Reaction ◽  
Sem Analysis ◽  
Catalyst Loading ◽  
Distilled Water ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution

ABSTRACTTantalate and titanate photocatalysts were prepared by solid-state reaction at 1273 K using various ratios of SrCO3, Ta2O5, and TiO2 as starting materials. The prepared solid photocatalysts were characterized using XRD and SEM analysis. These prepared tantalate and titanate photocatalysts showed high photocatalytic H2 evolution activity by water splitting without co-catalyst loading. The highest H2 evolution rate of prepared photocatalysts was found to be 138 μmolh−1 with the starting materials ratio of 2/0.5/1.5 (Sr/Ta/Ti; mol). Furthermore, this photocatalyst showed photocatalytic activity for H2 evolution from distilled water.

A Rapid Solar Reduction Method to TiO2/MoO2/Graphene Nanocomposites for Photocatalytic Water Splitting

2015 ◽  
Vol 1738 ◽  
Author(s):  
Jyothirmayee Aravind.S.S ◽  
Kandalam Ramanujachary ◽  
Timothy D. Vaden ◽  
Amos Mugweru
Keyword(s):  
Water Splitting ◽  
Reduction Method ◽  
High Current Density ◽  
Phase Identification ◽  
Co Catalyst ◽  
Graphene Nanocomposites ◽  
Photocatalytic Water Splitting ◽  
Earth Abundant ◽  
Co Reduction ◽  
Interesting Area

ABSTRACTSemiconductor photocatalysis has emerged as an interesting area of research since the discovery of Honda-Fujishima effect. In this study, TiO2/MoO2/graphene composites have been prepared by a solar radiation-assisted co-reduction method, wherein ammonium tetrathiomolybdate salt and graphite oxide are reduced to MoO2 and graphene respectively along with TiO2. The method involved the utilization of focused pulses of natural sunlight using a simple convex lens, thereby eliminating the need for harmful reducing agents. The compound was characterized by XRD and SEM for phase identification and morphology. The TiO2/MoO2/graphene composite exhibits superior photocatalytic water splitting activity without using a co-catalyst. In addition, we demonstrate the electrocatalytic hydrogen production using this earth abundant catalyst, which shows high current density (60 mA/cm2) and low Tafel slope (47 mV/dec). The hydrogen evolved during photocatalysis was detected by gas chromatography.

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