Photo-Degradation of Methelyne Blue over V2O5-TiO2 Nano-Porous Layers Synthesized by Micro Arc Oxidation

被引：63

作者：

Bayati, M. R. ^{[3
]}

Golestani-Fard, F. ^{[3
]}

Moshfegh, A. Z. ^{[1
,2
]}

机构：

[1] Sharif Univ Technol, Dept Phys, Tehran, Iran

[2] Sharif Univ Technol, Inst Nanosci & Nanotechnol, Tehran, Iran

[3] Iran Univ Sci & Technol, Dept Met & Mat Engn, Tehran, Iran

来源：

CATALYSIS LETTERS | 2010年 / 134卷 / 1-2期

关键词：

Micro arc oxidation; Titanium oxide; Vanadium oxide; Catalysis; PLASMA ELECTROLYTIC OXIDATION; DOPED TIO2 NANOPARTICLES; PHOTOCATALYTIC ACTIVITY; METHYLENE-BLUE; THIN-FILM; TITANIUM; DECOMPOSITION; DEGRADATION; COATINGS; MECHANISM;

D O I：

10.1007/s10562-009-0231-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

V2O5-TiO2 porous layers were synthesized via micro-arc oxidation for the first time. The effect of the applied voltage on morphology, composition, and photo-activity of the layers was investigated. The layers, which consisted of anatase, rutile, and vanadium pentoxide phases, revealed an enhanced photo-activity. About 93% of methylene blue solution was degraded on the synthesized layers after 120 min UV-irradiation with a reaction rate constant of k = 0.0228 min(-1). The band gap energies of the vanadia-titania and pure titania layers were calculated as 2.56 and 3.39 eV, respectively.

引用

页码：162 / 168

页数：7

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