Topics

SnS Nanosheets/H-TiO Nanotube Arrays as a Type II Heterojunctioned Photoanode for Photoelectrochemical Water Splitting.

07:00 EST 14th January 2019 | BioPortfolio

Summary of "SnS Nanosheets/H-TiO Nanotube Arrays as a Type II Heterojunctioned Photoanode for Photoelectrochemical Water Splitting."

Improving the separation efficiency of photogenerated electron-hole pairs and the conductivity of electrons to photoanode substrates are critical to achieve high-performance photoelectrochemical (PEC) water splitting. Here, a SnS /H-TiO /Ti heterojunction photoanode was fabricated with SnS nanosheets vertically grown on hydrogen-treated TiO (H-TiO ) nanotube arrays on a Ti substrate. It showed a significantly enhanced photocurrent of 4.0 mA cm at 1.4 V (vs. reversible hydrogen electrode) under AM 1.5 G illumination, 70 times higher than that of SnS /TiO /Ti. Kelvin probe force microscopy measurements indicated that photogenerated electrons could be easily transported through the SnS /H-TiO interface but not through the SnS /TiO interface. Through hydrogen treatment, defects were created in H-TiO nanotubes to convert type I junctions to type II with SnS nanosheets. As a result, a high efficiency of electron-hole separation at the SnS /H-TiO interface and a high electron conductivity in H-TiO nanotubes were achieved and improved PEC performance. These findings show an effective route towards high-performance photoelectrodes for water splitting.

Affiliation

Journal Details

This article was published in the following journal.

Name: ChemSusChem
ISSN: 1864-564X
Pages:

Links

DeepDyve research library

PubMed Articles [14270 Associated PubMed Articles listed on BioPortfolio]

TiO nanorod arrays decorated with exfoliated WS nanosheets for enhanced photoelectrochemical water oxidation.

A novel three-dimensional (3D) photoanode consisting of TiO nanorod arrays (TiO NAs) coated by exfoliated WS nanosheets was fabricated for enhanced photoelectrochemical water oxidation. Mixed phase WS...

Interfacial Coupling Effect on Electron Transport in Hierarchical TaON/Au/ZnCo-LDH Photoanode with Enhanced Photoelectrochemical Water Oxidation.

Rational design and construction of interface heterostructures, which can simultaneously accelerate the photoinduced carrier separation and enhance the surface water oxidation kinetics is of great nec...

A Quaternary Core-Shell Oxynitride Nanowire Photoanode Containing a Hole-Extraction Gradient for Photoelectrochemical Water Oxidation.

A nanowire photoanode SrTaON, a semiconductor suitable for overall water-splitting with a bandgap of 2.3 eV, was coated with functional overlayers to yield a core-shell structure while maintaining its...

Enhanced Photoelectrochemical Performance of WO3-Based Composite Photoanode Coupled with Carbon Quantum Dots and NiFe-Layered Double Hydroxide.

WO3, one of the attractive photoanode materials, has still suffered from the limited visible light absorption capability and sluggish surface reaction kinetics, as well as poor stability in neutral el...

Au nanoparticles embedded in BiVO4 films photoanode with enhanced photoelectrochemical performance.

In this work, we report the fabrication of Au nanoparticles embedded in BiVO4 films photoanode for photoelectrochemical (PEC) application by a facile electrochemical deposition and sputtering process....

Clinical Trials [5935 Associated Clinical Trials listed on BioPortfolio]

High-Frequency-Ultrasound Annular Arrays for Ophthalmic Imaging

The objective of this research is to improve the care of ocular disease and disorders, in particular the changes in the eye associated with diabetes, by providing clinicians with dramatica...

Non-invasive TB Triage and Patient Mapping Platform Using Breath Via Low-Cost Titanium Dioxide Nanotube Sensor

The purpose of this pilot study is to evaluate the sensitivity and specificity of a nanotube-based point-of-care breath-based tuberculosis screening test as compared to the current standar...

Effects of Progressive vs. Non-progressive Water-based Aerobic Training on Type 2 Diabetes Control: a Randomized Clinical Trial

This is a randomized clinical trial with the aim to evaluate the effects of two water-based aerobic training programs (walking or running in shallow pool) on type 2 diabetes control. The s...

Pharmacokinetics of Two Eletriptan Oral Formulations Given With and Without Water and the Commercial Tablet Formulation Given With Water

The study will evaluate whether the blood concentrations of eletriptan administered using two test formulations of oral disintegrating tablets are comparable to those observed with the sta...

Does the Cap Increase the Finding of Polyps When Water Exchange Colonoscopy is Used

This is a study to compare two different, but normally, used methods of colonoscopy in patients that require a routine or repeat colonoscopy. There will be three arms in this study: WE wat...

Medical and Biotech [MESH] Definitions

An AAA ATPase that binds and severs MICROTUBULES. It specifically recognizes and cuts polyglutamylated microtubules with short polyglutamate tails to promote reorganization of cellular microtubule arrays and the release of microtubules from the CENTROSOME following nucleation. It is critical for the biogenesis and maintenance of complex microtubule arrays in AXONS; SPINDLE APPARATUS; and CILIA. Mutations in the spastin gene (SPAST) are associated with type 4 of HEREDITARY SPASTIC PARAPLEGIA.

Adaptive antiviral defense mechanisms, in archaea and bacteria, based on DNA repeat arrays called CLUSTERED REGULARLY INTERSPACED SHORT PALINDROMIC REPEATS (CRISPR elements) that function in conjunction with CRISPR-ASSOCIATED PROTEINS (Cas proteins). Several types have been distinguished, including Type I, Type II, and Type III, based on signature motifs of CRISPR-ASSOCIATED PROTEINS.

Environmental reservoirs of water related to natural WATER CYCLE by which water is obtained for various purposes. This includes but is not limited to watersheds, aquifers and springs.

The flow of water in enviromental bodies of water such as rivers, oceans, water supplies, aquariums, etc. It includes currents, tides, and waves.

Substances or organisms which pollute the water or bodies of water. Use for water pollutants in general or those for which there is no specific heading.

Quick Search


DeepDyve research library

Searches Linking to this Article