Enhanced Photocatalytic Activity of Bismuth Precursor by Rapid Phase and Surface Transformation Using Structure-Guided Combustion Waves

Kang Yeol Lee, Hayoung Hwang, Tae Ho Kim, Wonjoon Choi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The development of an efficient method for manipulating phase and surface transformations would facilitate the improvement of catalytic materials for use in a diverse range of applications. Herein, we present the first instance of a submicrosecond time frame direct phase and surface transformation of Bi(NO3)3 rods to nanoporous β-Bi2O3 rods via structure-guided combustion waves. Hybrid composites of the prepared Bi(NO3)3·H2O rods and organic fuel were fabricated by a facile preparation method. The anisotropic propagation of combustion waves along the interfacial boundaries of Bi(NO3)3·H2O rods induced direct phase transformation to β-Bi2O3 rods in the original structure due to the rapid pyrolysis, while the release of gas molecules enabled the formation of nanoporous structures on the surfaces of rods. The developed β-Bi2O3 rods showed improved photocatalytic activity for the photodegradation of rhodamine B in comparison with Bi(NO3)3·H2O rods and α-Bi2O3 rods due to the more suitable interdistance and the large contact areas of the porous surfaces. This new method of using structure-guided combustion waves for phase and surface transformation may contribute to the development of new catalysts as well as the precise manipulation of diverse micronanostructured materials.

Original languageEnglish
Pages (from-to)3366-3375
Number of pages10
JournalACS Applied Materials and Interfaces
Volume8
Issue number5
DOIs
Publication statusPublished - 2016 Feb 10

Fingerprint

Bismuth
rhodamine B
Photodegradation
Pyrolysis
Gases
Phase transitions
Catalysts
Molecules
Composite materials

Keywords

  • bismuth oxide
  • combustion waves
  • nanoporous surfaces
  • phase transformation
  • photocatalytic activity
  • thermopower waves

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Enhanced Photocatalytic Activity of Bismuth Precursor by Rapid Phase and Surface Transformation Using Structure-Guided Combustion Waves. / Lee, Kang Yeol; Hwang, Hayoung; Kim, Tae Ho; Choi, Wonjoon.

In: ACS Applied Materials and Interfaces, Vol. 8, No. 5, 10.02.2016, p. 3366-3375.

Research output: Contribution to journalArticle

@article{1f06f9b294ee4a3486f422db2b3770af,
title = "Enhanced Photocatalytic Activity of Bismuth Precursor by Rapid Phase and Surface Transformation Using Structure-Guided Combustion Waves",
abstract = "The development of an efficient method for manipulating phase and surface transformations would facilitate the improvement of catalytic materials for use in a diverse range of applications. Herein, we present the first instance of a submicrosecond time frame direct phase and surface transformation of Bi(NO3)3 rods to nanoporous β-Bi2O3 rods via structure-guided combustion waves. Hybrid composites of the prepared Bi(NO3)3·H2O rods and organic fuel were fabricated by a facile preparation method. The anisotropic propagation of combustion waves along the interfacial boundaries of Bi(NO3)3·H2O rods induced direct phase transformation to β-Bi2O3 rods in the original structure due to the rapid pyrolysis, while the release of gas molecules enabled the formation of nanoporous structures on the surfaces of rods. The developed β-Bi2O3 rods showed improved photocatalytic activity for the photodegradation of rhodamine B in comparison with Bi(NO3)3·H2O rods and α-Bi2O3 rods due to the more suitable interdistance and the large contact areas of the porous surfaces. This new method of using structure-guided combustion waves for phase and surface transformation may contribute to the development of new catalysts as well as the precise manipulation of diverse micronanostructured materials.",
keywords = "bismuth oxide, combustion waves, nanoporous surfaces, phase transformation, photocatalytic activity, thermopower waves",
author = "Lee, {Kang Yeol} and Hayoung Hwang and Kim, {Tae Ho} and Wonjoon Choi",
year = "2016",
month = "2",
day = "10",
doi = "10.1021/acsami.5b11338",
language = "English",
volume = "8",
pages = "3366--3375",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "5",

}

TY - JOUR

T1 - Enhanced Photocatalytic Activity of Bismuth Precursor by Rapid Phase and Surface Transformation Using Structure-Guided Combustion Waves

AU - Lee, Kang Yeol

AU - Hwang, Hayoung

AU - Kim, Tae Ho

AU - Choi, Wonjoon

PY - 2016/2/10

Y1 - 2016/2/10

N2 - The development of an efficient method for manipulating phase and surface transformations would facilitate the improvement of catalytic materials for use in a diverse range of applications. Herein, we present the first instance of a submicrosecond time frame direct phase and surface transformation of Bi(NO3)3 rods to nanoporous β-Bi2O3 rods via structure-guided combustion waves. Hybrid composites of the prepared Bi(NO3)3·H2O rods and organic fuel were fabricated by a facile preparation method. The anisotropic propagation of combustion waves along the interfacial boundaries of Bi(NO3)3·H2O rods induced direct phase transformation to β-Bi2O3 rods in the original structure due to the rapid pyrolysis, while the release of gas molecules enabled the formation of nanoporous structures on the surfaces of rods. The developed β-Bi2O3 rods showed improved photocatalytic activity for the photodegradation of rhodamine B in comparison with Bi(NO3)3·H2O rods and α-Bi2O3 rods due to the more suitable interdistance and the large contact areas of the porous surfaces. This new method of using structure-guided combustion waves for phase and surface transformation may contribute to the development of new catalysts as well as the precise manipulation of diverse micronanostructured materials.

AB - The development of an efficient method for manipulating phase and surface transformations would facilitate the improvement of catalytic materials for use in a diverse range of applications. Herein, we present the first instance of a submicrosecond time frame direct phase and surface transformation of Bi(NO3)3 rods to nanoporous β-Bi2O3 rods via structure-guided combustion waves. Hybrid composites of the prepared Bi(NO3)3·H2O rods and organic fuel were fabricated by a facile preparation method. The anisotropic propagation of combustion waves along the interfacial boundaries of Bi(NO3)3·H2O rods induced direct phase transformation to β-Bi2O3 rods in the original structure due to the rapid pyrolysis, while the release of gas molecules enabled the formation of nanoporous structures on the surfaces of rods. The developed β-Bi2O3 rods showed improved photocatalytic activity for the photodegradation of rhodamine B in comparison with Bi(NO3)3·H2O rods and α-Bi2O3 rods due to the more suitable interdistance and the large contact areas of the porous surfaces. This new method of using structure-guided combustion waves for phase and surface transformation may contribute to the development of new catalysts as well as the precise manipulation of diverse micronanostructured materials.

KW - bismuth oxide

KW - combustion waves

KW - nanoporous surfaces

KW - phase transformation

KW - photocatalytic activity

KW - thermopower waves

UR - http://www.scopus.com/inward/record.url?scp=84958211660&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84958211660&partnerID=8YFLogxK

U2 - 10.1021/acsami.5b11338

DO - 10.1021/acsami.5b11338

M3 - Article

VL - 8

SP - 3366

EP - 3375

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 5

ER -