Published March 10, 2008 | Version v1
Journal article Metadata-only

Dopant dependent band gap tailoring of hydrothermally prepared cubic SrTixM1-xO3 (M=Ru,Rh,Ir,Pt,Pd) nanoparticles as visible light photocatalysts

Creators

  • 1. Eco-friendly Catalysis and Energy Laboratory (NRL), Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of)

Description

Nanostructured cubic SrTiO3 particles were hydrothermally synthesized and studied experimentally/theoretically for photoreduction of water. The particles were doped with metal atoms (M=Ru,Rh,Ir,Pt,Pd), which acquired high cyrstallinity after thermal treatment. SrTiO3:Rh showed the highest rate of H2 evolution under λ>420 nm photons. The density functional theory calculations of SrTixM1-xO3 (M=Ru,Rh,Ir,Pt) implied that the photocatalytic activity of SrTixRh1-xO3 was due to its suitable band energetics, and the induced hybridized Ti/Rh orbitals in the bandgap of SrTiO3

Additional details

Identifiers

DOI
10.1063/1.2897300;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
92
Journal Issue
10
Journal Page Range
p. 104107-104107.3
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40003107
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
DENSITY FUNCTIONAL METHOD; DOPED MATERIALS; ENERGY GAP; HEAT TREATMENTS; HYDROGEN; HYDROTHERMAL SYNTHESIS; IRIDIUM COMPOUNDS; NANOSTRUCTURES; PALLADIUM COMPOUNDS; PARTICLES; PHOTOCATALYSIS; PHOTOCHEMISTRY; PHOTONS; PLATINUM COMPOUNDS; RHODIUM COMPOUNDS; RUTHENIUM COMPOUNDS; STRONTIUM TITANATES; VISIBLE RADIATION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BOSONS; CALCULATION METHODS; CATALYSIS; CHEMISTRY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; MASSLESS PARTICLES; MATERIALS; NONMETALS; OXYGEN COMPOUNDS; RADIATIONS; REFRACTORY METAL COMPOUNDS; STRONTIUM COMPOUNDS; SYNTHESIS; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; VARIATIONAL METHODS

Optional Information

Notes
(c) 2008 American Institute of Physics