Surface roughened 1-D Au host nanorods for visible light induced photocatalyst

Aiming Mao, Wan Jung Kim, Jung Kyu Kim, Kahee Shin, Gui Young Han, Jong Hyeok Park

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Visible light induced photocatalytic degradation of rhodamine B and hydrogen generation from solar water splitting by hematite (α-Fe 2O3) coated gold (Au) nanorods have been investigated, in which two types of α-Fe2O3/Au nanorods with different Au surfaces were synthesized and then carefully compared. Vertically aligned smooth Au nanorod and porous Au nanorod arrays were prepared by the electro-deposition method using anodized aluminum oxide templates, followed by deposition of hematite onto nanoporous Au nanorods and smooth Au nanorods to synthesize core/shell like nanostructure. The as-prepared samples were characterized by Field Emission Scanning Electron Microscopy, X-ray Diffraction, and X-ray Photoelectron Spectroscopy. Also, their photocatalytic activities were investigated by photo-degradation of rhodamine B, photocurrent-voltage, and incident photon to current conversion efficiency measurements under AM 1.5G light irradiation. Hematite (α-Fe2O3) coated porous Au nanorods showed better photocatalytic activities than α-Fe 2O3 coated smooth Au nanorods, showing faster dye degradation rate, higher photocurrent density and better photon harvesting.

Original languageEnglish
Pages (from-to)404-408
Number of pages5
JournalElectrochimica Acta
Volume97
DOIs
Publication statusPublished - 2013 May 1

Fingerprint

Photocatalysts
Nanorods
rhodamine B
Hematite
Photocurrents
Photons
Degradation
Aluminum Oxide
Photodegradation
Electrodeposition
Gold
Field emission
Conversion efficiency
Hydrogen
Nanostructures
Coloring Agents
X ray photoelectron spectroscopy
Dyes
Irradiation
Aluminum

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Mao, Aiming ; Kim, Wan Jung ; Kim, Jung Kyu ; Shin, Kahee ; Han, Gui Young ; Park, Jong Hyeok. / Surface roughened 1-D Au host nanorods for visible light induced photocatalyst. In: Electrochimica Acta. 2013 ; Vol. 97. pp. 404-408.
@article{de13d083901f49f4aa247dcb24a84280,
title = "Surface roughened 1-D Au host nanorods for visible light induced photocatalyst",
abstract = "Visible light induced photocatalytic degradation of rhodamine B and hydrogen generation from solar water splitting by hematite (α-Fe 2O3) coated gold (Au) nanorods have been investigated, in which two types of α-Fe2O3/Au nanorods with different Au surfaces were synthesized and then carefully compared. Vertically aligned smooth Au nanorod and porous Au nanorod arrays were prepared by the electro-deposition method using anodized aluminum oxide templates, followed by deposition of hematite onto nanoporous Au nanorods and smooth Au nanorods to synthesize core/shell like nanostructure. The as-prepared samples were characterized by Field Emission Scanning Electron Microscopy, X-ray Diffraction, and X-ray Photoelectron Spectroscopy. Also, their photocatalytic activities were investigated by photo-degradation of rhodamine B, photocurrent-voltage, and incident photon to current conversion efficiency measurements under AM 1.5G light irradiation. Hematite (α-Fe2O3) coated porous Au nanorods showed better photocatalytic activities than α-Fe 2O3 coated smooth Au nanorods, showing faster dye degradation rate, higher photocurrent density and better photon harvesting.",
author = "Aiming Mao and Kim, {Wan Jung} and Kim, {Jung Kyu} and Kahee Shin and Han, {Gui Young} and Park, {Jong Hyeok}",
year = "2013",
month = "5",
day = "1",
doi = "10.1016/j.electacta.2013.03.003",
language = "English",
volume = "97",
pages = "404--408",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",

}

Surface roughened 1-D Au host nanorods for visible light induced photocatalyst. / Mao, Aiming; Kim, Wan Jung; Kim, Jung Kyu; Shin, Kahee; Han, Gui Young; Park, Jong Hyeok.

In: Electrochimica Acta, Vol. 97, 01.05.2013, p. 404-408.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Surface roughened 1-D Au host nanorods for visible light induced photocatalyst

AU - Mao, Aiming

AU - Kim, Wan Jung

AU - Kim, Jung Kyu

AU - Shin, Kahee

AU - Han, Gui Young

AU - Park, Jong Hyeok

PY - 2013/5/1

Y1 - 2013/5/1

N2 - Visible light induced photocatalytic degradation of rhodamine B and hydrogen generation from solar water splitting by hematite (α-Fe 2O3) coated gold (Au) nanorods have been investigated, in which two types of α-Fe2O3/Au nanorods with different Au surfaces were synthesized and then carefully compared. Vertically aligned smooth Au nanorod and porous Au nanorod arrays were prepared by the electro-deposition method using anodized aluminum oxide templates, followed by deposition of hematite onto nanoporous Au nanorods and smooth Au nanorods to synthesize core/shell like nanostructure. The as-prepared samples were characterized by Field Emission Scanning Electron Microscopy, X-ray Diffraction, and X-ray Photoelectron Spectroscopy. Also, their photocatalytic activities were investigated by photo-degradation of rhodamine B, photocurrent-voltage, and incident photon to current conversion efficiency measurements under AM 1.5G light irradiation. Hematite (α-Fe2O3) coated porous Au nanorods showed better photocatalytic activities than α-Fe 2O3 coated smooth Au nanorods, showing faster dye degradation rate, higher photocurrent density and better photon harvesting.

AB - Visible light induced photocatalytic degradation of rhodamine B and hydrogen generation from solar water splitting by hematite (α-Fe 2O3) coated gold (Au) nanorods have been investigated, in which two types of α-Fe2O3/Au nanorods with different Au surfaces were synthesized and then carefully compared. Vertically aligned smooth Au nanorod and porous Au nanorod arrays were prepared by the electro-deposition method using anodized aluminum oxide templates, followed by deposition of hematite onto nanoporous Au nanorods and smooth Au nanorods to synthesize core/shell like nanostructure. The as-prepared samples were characterized by Field Emission Scanning Electron Microscopy, X-ray Diffraction, and X-ray Photoelectron Spectroscopy. Also, their photocatalytic activities were investigated by photo-degradation of rhodamine B, photocurrent-voltage, and incident photon to current conversion efficiency measurements under AM 1.5G light irradiation. Hematite (α-Fe2O3) coated porous Au nanorods showed better photocatalytic activities than α-Fe 2O3 coated smooth Au nanorods, showing faster dye degradation rate, higher photocurrent density and better photon harvesting.

UR - http://www.scopus.com/inward/record.url?scp=84875651953&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875651953&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2013.03.003

DO - 10.1016/j.electacta.2013.03.003

M3 - Article

AN - SCOPUS:84875651953

VL - 97

SP - 404

EP - 408

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -