Structure of PbBi2Nb2O9 and its Cr-doped layered perovskite system and their photocatalytic activities

S. J. Hong; P. H. Borse; S. M. Ji; J. S. Jang; J. S. Lee; E. D. Jeong; H. G. Kim; H. K. Pak

doi:10.3938/jkps.51.27

Structure of PbBi₂Nb₂O₉ and its Cr-doped layered perovskite system and their photocatalytic activities

S. J. Hong^*
, P. H. Borse
, S. M. Ji
, J. S. Jang
, J. S. Lee
, E. D. Jeong
, H. G. Kim
, H. K. Pak

^*Corresponding author for this work

Environmental Biotechnology

Pohang University of Science and Technology
Korea Basic Science Institute
Pusan National University

Research output: Contribution to journal › Journal article › peer-review

17 Scopus citations

Abstract

In the search for efficient photocatalysis for water splitting under visible light, the effect of chromium doping in a (100) layered Aurivillius-phase perovskite material, PbBi₂Nb₂O ₂, has been studied. The Cr-doped PbBi₂Nb ₂O₉ showed three absorption edges: the main edge due to the oxide at 431 nm and shoulders due to the chromium ions at 470 nm and 600 nm, respectively. The Pt/Cr-doped PbBi₂Nb₂O₉ photocatalyst was more active than the undoped PbBi₂Nb ₂O_g for photocatalytic decomposition of water-methanol solution. This is attributed to Cr⁺ ions having an important role in increasing QYs in the PbBi₂Nb₂O₉.

Original language	English
Pages (from-to)	S27-S31
Journal	Journal of the Korean Physical Society
Volume	51
Issue number	SUPPL. 1
DOIs	https://doi.org/10.3938/jkps.51.27
State	Published - 2007.07

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Aurivillius-phase perovskite
Band-gap energy
Photocatalysis
Quantum yield
Visible light

Access to Document

10.3938/jkps.51.27

Cite this

@article{b07e3afc296f49929c10300170f2cb80,

title = "Structure of PbBi2Nb2O9 and its Cr-doped layered perovskite system and their photocatalytic activities",

abstract = "In the search for efficient photocatalysis for water splitting under visible light, the effect of chromium doping in a (100) layered Aurivillius-phase perovskite material, PbBi2Nb2O 2, has been studied. The Cr-doped PbBi2Nb 2O9 showed three absorption edges: the main edge due to the oxide at 431 nm and shoulders due to the chromium ions at 470 nm and 600 nm, respectively. The Pt/Cr-doped PbBi2Nb2O9 photocatalyst was more active than the undoped PbBi2Nb 2Og for photocatalytic decomposition of water-methanol solution. This is attributed to Cr+ ions having an important role in increasing QYs in the PbBi2Nb2O9.",

keywords = "Aurivillius-phase perovskite, Band-gap energy, Photocatalysis, Quantum yield, Visible light",

author = "Hong, \{S. J.\} and Borse, \{P. H.\} and Ji, \{S. M.\} and Jang, \{J. S.\} and Lee, \{J. S.\} and Jeong, \{E. D.\} and Kim, \{H. G.\} and Pak, \{H. K.\}",

year = "2007",

month = jul,

doi = "10.3938/jkps.51.27",

language = "English",

volume = "51",

pages = "S27--S31",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

number = "SUPPL. 1",

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TY - JOUR

T1 - Structure of PbBi2Nb2O9 and its Cr-doped layered perovskite system and their photocatalytic activities

AU - Hong, S. J.

AU - Borse, P. H.

AU - Ji, S. M.

AU - Jang, J. S.

AU - Lee, J. S.

AU - Jeong, E. D.

AU - Kim, H. G.

AU - Pak, H. K.

PY - 2007/7

Y1 - 2007/7

N2 - In the search for efficient photocatalysis for water splitting under visible light, the effect of chromium doping in a (100) layered Aurivillius-phase perovskite material, PbBi2Nb2O 2, has been studied. The Cr-doped PbBi2Nb 2O9 showed three absorption edges: the main edge due to the oxide at 431 nm and shoulders due to the chromium ions at 470 nm and 600 nm, respectively. The Pt/Cr-doped PbBi2Nb2O9 photocatalyst was more active than the undoped PbBi2Nb 2Og for photocatalytic decomposition of water-methanol solution. This is attributed to Cr+ ions having an important role in increasing QYs in the PbBi2Nb2O9.

AB - In the search for efficient photocatalysis for water splitting under visible light, the effect of chromium doping in a (100) layered Aurivillius-phase perovskite material, PbBi2Nb2O 2, has been studied. The Cr-doped PbBi2Nb 2O9 showed three absorption edges: the main edge due to the oxide at 431 nm and shoulders due to the chromium ions at 470 nm and 600 nm, respectively. The Pt/Cr-doped PbBi2Nb2O9 photocatalyst was more active than the undoped PbBi2Nb 2Og for photocatalytic decomposition of water-methanol solution. This is attributed to Cr+ ions having an important role in increasing QYs in the PbBi2Nb2O9.

KW - Aurivillius-phase perovskite

KW - Band-gap energy

KW - Photocatalysis

KW - Quantum yield

KW - Visible light

UR - https://www.scopus.com/pages/publications/34548009829

U2 - 10.3938/jkps.51.27

DO - 10.3938/jkps.51.27

M3 - Journal article

AN - SCOPUS:34548009829

SN - 0374-4884

VL - 51

SP - S27-S31

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - SUPPL. 1

ER -