H2 and CH4 Productions from Bio-alcohols by Condensed Poly (Heptazine Imide) with Visible Light

2021 ◽  
Author(s):  
Dandan Zheng ◽  
Jingmin Zhou ◽  
Zhongpu Fang ◽  
Tobias Heil ◽  
Aleksandr Savateev ◽  
...  
Keyword(s):  
Solar Energy ◽  
Visible Light ◽  
Water Splitting ◽  
H2 Production ◽  
Hill Reaction

Photocatalytic H2 production via water splitting holds great potential for the conversion of solar energy into renewable and storable chemical fuels in a sustainable manner, but this up-hill reaction is...

Visible-light-driven metal-free photocatalyst based upon covalent triazine-based frameworks for enhanced hydrogen production

2021 ◽  
Author(s):  
Zunkun Tan ◽  
Peng Zhang ◽  
Qiaoshan Chen ◽  
Shengqiong Fang ◽  
Guocheng Huang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Solar Energy ◽  
Visible Light ◽  
Water Splitting ◽  
H2 Production ◽  
Green Technology ◽  
Metal Free ◽  
Visible Light Active ◽  
Visible Light Driven

Photocatalytic H2 production via water splitting has emerged as an eco-friendly and green technology to efficiently utilize the solar energy. Developing visible light active photocatalysts, especially the metal-free ones is...

Functionalized ZnO@TiO2nanorod array film loaded with ZnIn0.25Cu0.02S1.395solid-solution: synthesis, characterization and enhanced visible light driven water splitting

Nanoscale ◽  
2015 ◽  
Vol 7 (25) ◽  
pp. 11082-11092 ◽  
Author(s):  
Ruosong Wang ◽  
Xiaoxue Xu ◽  
Yi Zhang ◽  
Zhimin Chang ◽  
Zaicheng Sun ◽  
...  
Keyword(s):  
Solar Energy ◽  
Visible Light ◽  
Energy Conversion ◽  
Water Splitting ◽  
Solar Energy Conversion ◽  
Solution Synthesis ◽  
Visible Light Driven

We have designed a novel semiconductor nanorod film, sensitized with a polymetallic sulfide, for solar energy conversion. Our results verify that it could be conveniently used in micro-nano photoelectronic devices.

Solar Hydrogen Production: Direct Water Splitting Into Hydrogen and Oxygen by New Photocatalysts Under Visible Light Irradiation

Solar Energy ◽  
2003 ◽  
Author(s):  
Hironori Arakawa ◽  
Zhigang Zou ◽  
Kazuhiro Sayama ◽  
Ryu Abe
Keyword(s):  
Quantum Yield ◽  
Solar Energy ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Solar Hydrogen ◽  
Solar Hydrogen Production ◽  
Natural Photosynthesis ◽  
Splitting System

The photocatalytic splitting of water into hydrogen and oxygen using solar energy is one of the most attractive renewable sources of hydrogen fuel. Therefore, considerable efforts have been paid in developing photocatalysts capable of using visible light, which accounts for about 43% of the solar energy. However such a photocatalyst has not been developed so far. We have developed a new Ni-doped indium-tantalum oxide photocatalyst, In1-xNixTaO4 (x = 0.0∼0.2), which induced direct splitting of water into stoichiometric amount of oxygen and hydrogen under visible light irradiation with a quantum yield of about 0.66% at 420.7 nm. We have also developed a new two-step water splitting system using two different semiconductor photocatalysts, Pt/WO3 photocatalyst for oxygen evolution and Pt/SrTiO3(Cr-Ta-doped) photocatalyst for hydrogen evolution, and a redox mediator, I−/IO3−, mimicking the Z-scheme mechanism of the natural photosynthesis. The quantum yield of this system was about 0.1% at 420.7nm. Both photocatalytic methods are the first examples for visible light water splitting system in the world.

Synthesis, characterization and photocatalytic evaluation of strontium ferrites towards H2 production by water splitting under visible light irradiation

2017 ◽  
Vol 42 (51) ◽  
pp. 30257-30266 ◽  
Author(s):  
J.A. Jiménez-Miramontes ◽  
J.L. Domínguez-Arvizu ◽  
J.M. Salinas-Gutiérrez ◽  
M.J. Meléndez-Zaragoza ◽  
A. López-Ortiz ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
H2 Production ◽  
Light Irradiation ◽  
Strontium Ferrites

Dye-Sensitized Photocatalyst System for Water Splitting Into H2 and O2 Under Visible Light Irradiation

Solar Energy ◽  
2004 ◽  
Author(s):  
Ryu Abe ◽  
Kazuhiro Sayama ◽  
Hironori Arakawa
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Energy Gap ◽  
H2 Production ◽  
Light Irradiation ◽  
Mixed Solution ◽  
Tio2 Photocatalysts ◽  
Dye Sensitized ◽  
Splitting System

H2 production from a water-acetonitrile mixed solution containing iodide electron donor was investigated over dye-sensitized Pt/TiO2 photocatalysts under visible light irradiation, as a part of water splitting system using iodide redox mediator. The rates of H2 evolution were decreased with the increase of the water ratio in the mixed solutions, because of the decrease in energy gap between the redox potential of I3−/I− and the HOMO levels of the dyes, which lowing the efficiency of electron transfer from I− to dye.

Highly efficient and ultrastable visible-light photocatalytic water splitting over ReS2

2016 ◽  
Vol 18 (21) ◽  
pp. 14222-14227 ◽  
Author(s):  
Huimei Liu ◽  
Bo Xu ◽  
J.-M. Liu ◽  
Jiang Yin ◽  
Feng Miao ◽  
...  
Keyword(s):  
Solar Energy ◽  
Visible Light ◽  
Water Splitting ◽  
Photocatalytic Water Splitting ◽  
Highly Efficient ◽  
Potential Applications ◽  
Visible Light Photocatalytic

ReS2is a stable and efficient photocatalyst with potential applications in the use of solar energy for water splitting.

Visible light switchable bR/TiO 2 nanostructured photoanodes for bio-inspired solar energy conversion

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18642-18646 ◽  
Author(s):  
Naimeh Naseri ◽  
Sajjad Janfaza ◽  
Rowshanak Irani
Keyword(s):  
Solar Energy ◽  
Visible Light ◽  
Energy Conversion ◽  
Water Splitting ◽  
Solar Energy Conversion

Bacteriorhodopsin, a visible light sensitizer for the water splitting reaction, adsorbed on TiO 2 nanoparticulate photoanode without any linker and caused a significant PEC enhancement.

Shape-controllable synthesis of GdVO4 photocatalysts and their tunable properties in photocatalytic hydrogen generation

2019 ◽  
Vol 48 (5) ◽  
pp. 1662-1671 ◽  
Author(s):  
Paweł Mazierski ◽  
Jakub Sowik ◽  
Magdalena Miodyńska ◽  
Grzegorz Trykowski ◽  
Alicja Mikołajczyk ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Solar Energy ◽  
Visible Light ◽  
Water Splitting ◽  
Bond Energy ◽  
Hydrogen Generation ◽  
Controllable Synthesis ◽  
Hydrogen Bond Energy ◽  
Responsive Materials ◽  
Photocatalytic Hydrogen Generation

Novel visible light responsive materials for water splitting are essential for the efficient conversion of solar energy into hydrogen bond energy.

scholarly journals Photocatalytic Hydrogen Evolution via Water Splitting: A Short Review

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 655 ◽  
Author(s):  
Yifan Zhang ◽  
Young-Jung Heo ◽  
Ji-Won Lee ◽  
Jong-Hoon Lee ◽  
Johny BajGai ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Solar Energy ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Future Development ◽  
Rational Design ◽  
Short Review ◽  
H2 Production ◽  
H2 Generation ◽  
Photocatalytic H2 Generation

Photocatalytic H2 generation via water splitting is increasingly gaining attention as a viable alternative for improving the performance of H2 production for solar energy conversion. Many methods were developed to enhance photocatalyst efficiency, primarily by modifying its morphology, crystallization, and electrical properties. Here, we summarize recent achievements in the synthesis and application of various photocatalysts. The rational design of novel photocatalysts was achieved using various strategies, and the applications of novel materials for H2 production are displayed herein. Meanwhile, the challenges and prospects for the future development of H2-producing photocatalysts are also summarized.

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