Fabrication and characterization of metal-doped TiO2 nanofibers for photocatalytic reactions

被引：37

作者：

Park, Ju-Young ^{[1
]}

Choi, Kwang-Il ^{[1
,2
]}

Lee, Jae-Hyeok ^{[3
]}

Hwang, Cheol-Ho ^{[4
]}

Choi, Do-Young ^{[3
]}

Lee, Jae-Wook ^{[4
]}

机构：

[1] Southwestern Res Inst Green Energy, Mokpo Si 530400, South Korea

[2] Chonnam Natl Univ, Dept Mat Sci Engn, Kwangju 500757, South Korea

[3] Chosun Univ, Dept Chem & Biochem Engn, Kwangju 501759, South Korea

[4] Chosun Univ, Dept Environm Engn, Kwangju 501759, South Korea

来源：

MATERIALS LETTERS | 2013年 / 97卷

关键词：

Nanocompasite; Phase transformation; Electrospun; TiO2; nanofibers; Metal dopin1;

D O I：

10.1016/j.matlet.2013.01.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Metal (Co2+, Ni2+, Cu2+, and Zn2+) doped TiO2 nanofibers were fabricated by a sol-gel method and an electrospinning technique using poly(methyl methacrylate) (PMMA) and titanium isopropoxide as precursors. Co, Ni, and Zn were found to promote the anatase-rutile (A-R) phase transformation, whereas Zn inhibited this process. The as-prepared catalysts were evaluated in the photodecomposition of methylene blue under UV light. Ni- and Zn-doped TiO2 nanofibers were found to be more efficient than pure TiO2 nanofibers in this reaction. The photocatalytic degradation rate fitted a pseudo-first-order equation. Zn-doped TiO2 nanofibers were found to be promising materials for the photocatalytic decomposition of methylene blue with a kinetic constant of 0.0240 min(-1). (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：64 / 66

页数：3

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