Journal ArticleDOI
A metal-free polymeric photocatalyst for hydrogen production from water under visible light
Xinchen Wang,Kazuhiko Maeda,Arne Thomas,Kazuhiro Takanabe,Gang Xin,Johan M. Carlsson,Kazunari Domen,Markus Antonietti +7 more
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TLDR
It is shown that an abundant material, polymeric carbon nitride, can produce hydrogen from water under visible-light irradiation in the presence of a sacrificial donor.Abstract:
The production of hydrogen from water using a catalyst and solar energy is an ideal future energy source, independent of fossil reserves. For an economical use of water and solar energy, catalysts that are sufficiently efficient, stable, inexpensive and capable of harvesting light are required. Here, we show that an abundant material, polymeric carbon nitride, can produce hydrogen from water under visible-light irradiation in the presence of a sacrificial donor. Contrary to other conducting polymer semiconductors, carbon nitride is chemically and thermally stable and does not rely on complicated device manufacturing. The results represent an important first step towards photosynthesis in general where artificial conjugated polymer semiconductors can be used as energy transducers.read more
Citations
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Production of Hydrogen Peroxide by Photocatalytic Processes
TL;DR: A review of the progress in the development of processes for the photocatalytic production of H2 O2 can be found in this article, where the basic principles of establishing an efficient photocATalytic system for generating hydrogen peroxide are discussed.
Journal ArticleDOI
Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid
TL;DR: In this paper, a single-atom dispersed Ag modified mesoporous graphitic carbon nitride (Ag/mpg-C3N4) hybrid was synthesized by co-condensation method and employed as a visible light photocatalyst.
Journal ArticleDOI
A Graphitic‐C3N4 “Seaweed” Architecture for Enhanced Hydrogen Evolution
TL;DR: This work presents a very simple method for designing and developing high-performance catalysts for hydrogen evolution with a remarkable apparent quantum efficiency of 7.8% at 420 nm, better than most of the g-C3N4 nanostructures reported.
Journal ArticleDOI
One‐Step Solvothermal Synthesis of a Carbon@TiO2 Dyade Structure Effectively Promoting Visible‐Light Photocatalysis
Li Zhao,Xiufang Chen,Xinchen Wang,Yuanjian Zhang,Wei Wei,Yuhan Sun,Markus Antonietti,Maria-Magdalena Titirici +7 more
TL;DR: The development of sunlight harvesting chemical systems to catalyze relevant reactions, i.e., water splitting, CO 2 fi xation, and organic mineralization, is the key target in artifi cial photosynthesis but remains a diffi cult challenge.
Journal ArticleDOI
Hydrothermal Synthesis of Graphitic Carbon Nitride–Bi2WO6 Heterojunctions with Enhanced Visible Light Photocatalytic Activities
TL;DR: The possible photocatalytic mechanism with superoxide radical species as the main active species in photocatalysis is proposed on the basis of experimental results and depicted high stability and durability during six successive cycles.
References
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First principles methods using CASTEP
Stewart J. Clark,Matthew D. Segall,Chris J. Pickard,P. J. Hasnip,Matt Probert,Keith Refson,Mike C. Payne +6 more
TL;DR: The CASTEP program as mentioned in this paper is a computer program for first principles electro-Nic structure calculations, and some of its features and capabilities are described and near-future development plans outlined.
Journal ArticleDOI
Photocatalyst releasing hydrogen from water
Kazuhiko Maeda,Kentaro Teramura,Daling Lu,Tsuyoshi Takata,Nobuo Saito,Yasunobu Inoue,Kazunari Domen +6 more
TL;DR: An advance in the catalysis of the overall splitting of water under visible light is described: the new catalyst is a solid solution of gallium and zinc nitrogen oxide, modified with nanoparticles of a mixed oxide of rhodium and chromium, which functions as a promising and efficient photocatalyst in promoting the evolution of hydrogen gas.
Journal ArticleDOI
A Monolithic Photovoltaic-Photoelectrochemical Device for Hydrogen Production via Water Splitting
O. Khaselev,John A. Turner +1 more
TL;DR: Direct water electrolysis was achieved with a novel, integrated, monolithic photoelectrochemical-photovoltaic design that splits water directly upon illumination; light is the only energy input.
Journal ArticleDOI
Composition, structure, and stability of RuO 2 ( 110 ) as a function of oxygen pressure
TL;DR: In this article, the Gibbs free energy was calculated to determine the lowest energy structure of a transition metal oxide surface in thermodynamic equilibrium with an oxygen-rich environment, and it was shown that the commonly assumed stoichiometric termination is only favorable at low oxygen chemical potentials, i.e., low pressures and/or high temperatures.
Journal ArticleDOI
New Non-Oxide Photocatalysts Designed for Overall Water Splitting under Visible Light
TL;DR: In this article, the development of visible-light-driven photocatalysts focusing on the refinement of non-oxide-type photocatalyst such as (oxy)nitrides and oxysulfides is discussed.
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