Photoelectrocatalytic activity of highly ordered TiO2 nanotube arrays electrode for azo dye degradation

Zhonghai Zhang; Yuan Yuan; Guoyue Shi; Yanju Fang; Linhong Liang; Hongchun Ding; Litong Jin

doi:10.1021/es070212x

Photoelectrocatalytic activity of highly ordered TiO₂ nanotube arrays electrode for azo dye degradation

Zhonghai Zhang
, Yuan Yuan
, Guoyue Shi
, Yanju Fang
, Linhong Liang
, Hongchun Ding
, Litong Jin^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

207 Scopus citations

Abstract

A highly ordered titanium dioxide nanotube arrays (HOTDNA) electrode was prepared in hydrofluoric acid solution by electrochemical anodization technique on a pure titanium sheet. The HOTDNA electrode was characterized by FE-SEM microscopy, X-ray diffraction, and UV-vis spectra. The linear-sweep photovoltammetry response on the HOTDNA electrode is presented in this work. The photogenerated current of 0.3 mA/cm² was observed significantly upon illumination with applied potential of 0.5 V in the UV regions at the central wavelength of 253.7 nm. Photoelectrocatalytic (PEC) and photocatalytic (PC) activities of the HOTDNA electrode were evaluated in the degradation of methyl orange (MeO) in aqueous solution. A set of optimized conditions such as anodic potential, calcinations temperature, and MeO concentration on the PEC activity was investigated. The PEC and PC activities of HOTDNA electrode were compared. We concluded that the HOTDNA electrode was an effective photoelectrode for achieving an enhanced MeO degradation.

Original language	English
Pages (from-to)	6259-6263
Number of pages	5
Journal	Environmental Science and Technology
Volume	41
Issue number	17
DOIs	https://doi.org/10.1021/es070212x
State	Published - 1 Sep 2007

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@article{08b19a53d3e34298bc12408598b6ebcf,

title = "Photoelectrocatalytic activity of highly ordered TiO2 nanotube arrays electrode for azo dye degradation",

abstract = "A highly ordered titanium dioxide nanotube arrays (HOTDNA) electrode was prepared in hydrofluoric acid solution by electrochemical anodization technique on a pure titanium sheet. The HOTDNA electrode was characterized by FE-SEM microscopy, X-ray diffraction, and UV-vis spectra. The linear-sweep photovoltammetry response on the HOTDNA electrode is presented in this work. The photogenerated current of 0.3 mA/cm2 was observed significantly upon illumination with applied potential of 0.5 V in the UV regions at the central wavelength of 253.7 nm. Photoelectrocatalytic (PEC) and photocatalytic (PC) activities of the HOTDNA electrode were evaluated in the degradation of methyl orange (MeO) in aqueous solution. A set of optimized conditions such as anodic potential, calcinations temperature, and MeO concentration on the PEC activity was investigated. The PEC and PC activities of HOTDNA electrode were compared. We concluded that the HOTDNA electrode was an effective photoelectrode for achieving an enhanced MeO degradation.",

author = "Zhonghai Zhang and Yuan Yuan and Guoyue Shi and Yanju Fang and Linhong Liang and Hongchun Ding and Litong Jin",

year = "2007",

month = sep,

day = "1",

doi = "10.1021/es070212x",

language = "英语",

volume = "41",

pages = "6259--6263",

journal = "Environmental Science and Technology",

issn = "0013-936X",

publisher = "American Chemical Society",

number = "17",

}

TY - JOUR

T1 - Photoelectrocatalytic activity of highly ordered TiO2 nanotube arrays electrode for azo dye degradation

AU - Zhang, Zhonghai

AU - Yuan, Yuan

AU - Shi, Guoyue

AU - Fang, Yanju

AU - Liang, Linhong

AU - Ding, Hongchun

AU - Jin, Litong

PY - 2007/9/1

Y1 - 2007/9/1

N2 - A highly ordered titanium dioxide nanotube arrays (HOTDNA) electrode was prepared in hydrofluoric acid solution by electrochemical anodization technique on a pure titanium sheet. The HOTDNA electrode was characterized by FE-SEM microscopy, X-ray diffraction, and UV-vis spectra. The linear-sweep photovoltammetry response on the HOTDNA electrode is presented in this work. The photogenerated current of 0.3 mA/cm2 was observed significantly upon illumination with applied potential of 0.5 V in the UV regions at the central wavelength of 253.7 nm. Photoelectrocatalytic (PEC) and photocatalytic (PC) activities of the HOTDNA electrode were evaluated in the degradation of methyl orange (MeO) in aqueous solution. A set of optimized conditions such as anodic potential, calcinations temperature, and MeO concentration on the PEC activity was investigated. The PEC and PC activities of HOTDNA electrode were compared. We concluded that the HOTDNA electrode was an effective photoelectrode for achieving an enhanced MeO degradation.

AB - A highly ordered titanium dioxide nanotube arrays (HOTDNA) electrode was prepared in hydrofluoric acid solution by electrochemical anodization technique on a pure titanium sheet. The HOTDNA electrode was characterized by FE-SEM microscopy, X-ray diffraction, and UV-vis spectra. The linear-sweep photovoltammetry response on the HOTDNA electrode is presented in this work. The photogenerated current of 0.3 mA/cm2 was observed significantly upon illumination with applied potential of 0.5 V in the UV regions at the central wavelength of 253.7 nm. Photoelectrocatalytic (PEC) and photocatalytic (PC) activities of the HOTDNA electrode were evaluated in the degradation of methyl orange (MeO) in aqueous solution. A set of optimized conditions such as anodic potential, calcinations temperature, and MeO concentration on the PEC activity was investigated. The PEC and PC activities of HOTDNA electrode were compared. We concluded that the HOTDNA electrode was an effective photoelectrode for achieving an enhanced MeO degradation.

UR - https://www.scopus.com/pages/publications/34548598389

U2 - 10.1021/es070212x

DO - 10.1021/es070212x

M3 - 文章

C2 - 17937312

AN - SCOPUS:34548598389

SN - 0013-936X

VL - 41

SP - 6259

EP - 6263

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 17

ER -

Photoelectrocatalytic activity of highly ordered TiO₂ nanotube arrays electrode for azo dye degradation

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