Rapid screening of effective dopants for fe 2o 3 photocatalysts with Scanning electrochemical microscopy and investigation of their photoelectrochemical properties

Jum Suk Jang; Joowook Lee; Heechang Ye; Fu Ren F. Fan; Allen J. Bard

doi:10.1021/jp8109429

Rapid screening of effective dopants for fe ₂o ₃ photocatalysts with Scanning electrochemical microscopy and investigation of their photoelectrochemical properties

Jum Suk Jang
, Joowook Lee
, Heechang Ye
, Fu Ren F. Fan
, Allen J. Bard

Environmental Biotechnology

University of Texas at Austin

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

147 Scopus citations

Abstract

Scanning electrochemical microscopy in the photoelectrochemical (PEC) mode was used to search for more efficient doped iron oxide photocatalysts under visible light irradiation (λ≥ 420 nm). Iron oxide doped with one or two different metal cations was investigated to improve its PEC performance. Among various dopants, Sn or Ti as single dopants and Be or Al as codopants showed an improved photocurrent response of Fe ₂O ₃ under visible light irradiation (λ> 420 nm). Fe ₂O ₃ doped with 4% Sn(IV) and 6% Be(II) showed the highest photocurrent as well as a good photosensitivity and stability in alkali solution (0.2 M NaOH) under UV and visible light irradiation.

Original language	English
Pages (from-to)	6719-6724
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	16
DOIs	https://doi.org/10.1021/jp8109429
State	Published - 2009.04.23

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title = "Rapid screening of effective dopants for fe 2o 3 photocatalysts with Scanning electrochemical microscopy and investigation of their photoelectrochemical properties",

abstract = "Scanning electrochemical microscopy in the photoelectrochemical (PEC) mode was used to search for more efficient doped iron oxide photocatalysts under visible light irradiation (λ≥ 420 nm). Iron oxide doped with one or two different metal cations was investigated to improve its PEC performance. Among various dopants, Sn or Ti as single dopants and Be or Al as codopants showed an improved photocurrent response of Fe 2O 3 under visible light irradiation (λ> 420 nm). Fe 2O 3 doped with 4\% Sn(IV) and 6\% Be(II) showed the highest photocurrent as well as a good photosensitivity and stability in alkali solution (0.2 M NaOH) under UV and visible light irradiation.",

author = "Jang, \{Jum Suk\} and Joowook Lee and Heechang Ye and Fan, \{Fu Ren F.\} and Bard, \{Allen J.\}",

year = "2009",

month = apr,

day = "23",

doi = "10.1021/jp8109429",

language = "English",

volume = "113",

pages = "6719--6724",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

number = "16",

}

Rapid screening of effective dopants for fe ₂o ₃ photocatalysts with Scanning electrochemical microscopy and investigation of their photoelectrochemical properties. / Jang, Jum Suk; Lee, Joowook; Ye, Heechang et al.
In: Journal of Physical Chemistry C, Vol. 113, No. 16, 23.04.2009, p. 6719-6724.

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

TY - JOUR

T1 - Rapid screening of effective dopants for fe 2o 3 photocatalysts with Scanning electrochemical microscopy and investigation of their photoelectrochemical properties

AU - Jang, Jum Suk

AU - Lee, Joowook

AU - Ye, Heechang

AU - Fan, Fu Ren F.

AU - Bard, Allen J.

PY - 2009/4/23

Y1 - 2009/4/23

N2 - Scanning electrochemical microscopy in the photoelectrochemical (PEC) mode was used to search for more efficient doped iron oxide photocatalysts under visible light irradiation (λ≥ 420 nm). Iron oxide doped with one or two different metal cations was investigated to improve its PEC performance. Among various dopants, Sn or Ti as single dopants and Be or Al as codopants showed an improved photocurrent response of Fe 2O 3 under visible light irradiation (λ> 420 nm). Fe 2O 3 doped with 4% Sn(IV) and 6% Be(II) showed the highest photocurrent as well as a good photosensitivity and stability in alkali solution (0.2 M NaOH) under UV and visible light irradiation.

AB - Scanning electrochemical microscopy in the photoelectrochemical (PEC) mode was used to search for more efficient doped iron oxide photocatalysts under visible light irradiation (λ≥ 420 nm). Iron oxide doped with one or two different metal cations was investigated to improve its PEC performance. Among various dopants, Sn or Ti as single dopants and Be or Al as codopants showed an improved photocurrent response of Fe 2O 3 under visible light irradiation (λ> 420 nm). Fe 2O 3 doped with 4% Sn(IV) and 6% Be(II) showed the highest photocurrent as well as a good photosensitivity and stability in alkali solution (0.2 M NaOH) under UV and visible light irradiation.

UR - https://www.scopus.com/pages/publications/67049172829

U2 - 10.1021/jp8109429

DO - 10.1021/jp8109429

M3 - Journal article

AN - SCOPUS:67049172829

SN - 1932-7447

VL - 113

SP - 6719

EP - 6724

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 16

ER -

Rapid screening of effective dopants for fe ₂o ₃ photocatalysts with Scanning electrochemical microscopy and investigation of their photoelectrochemical properties

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