Sn-doped TiO2 nanotubular thin film for photocatalytic degradation of methyl orange dye

被引：21

作者：

Bjelajac, Andjelika ^{[1
,8
]}

Petrovic, Rada ^{[2
]}

Vujancevic, Jelena ^{[3
]}

Veltruska, Katerina ^{[4
]}

Matolin, Vladimir ^{[4
]}

Siketic, Zdravko ^{[5
]}

Provatas, George ^{[5
]}

Jaksic, Milko ^{[5
]}

Stan, George E. ^{[6
]}

Socol, Gabriel ^{[7
]}

Mihailescu, Ion N. ^{[7
]}

Janackovic, Djordje ^{[2
]}

机构：

[1] Univ Belgrade, Innovat Ctr, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia

[2] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia

[3] Inst Tech Sci SASA, Knez Mihailova 35 IV, Belgrade 11000, Serbia

[4] Charles Univ Prague, Fac Math & Phys, Dept Surface & Plasma Sci, V Holesovidcach 2, Prague 18000 8, Czech Republic

[5] Rudjer Boskovic Inst, Bijenicka Cesta 54, Zagreb 10000, Croatia

[6] Natl Inst Mat Phys, Lab Multifunct Mat & Struct, Atomistilor 405A, RO-077125 Magurele, Ilfov, Romania

[7] Natl Inst Lasers Plasma & Radiat Phys, Lasers Dept, Laser Surface Plasma Interact Lab, RO-77125 Magurele, Ilfov, Romania

[8] Ecole Polytech, CNRS, IP Paris, LPICM, F-91128 Palaiseau, France

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2020年 / 147卷

关键词：

Thin films; Nanostructures; Photoelectron spectroscopy; CALCINATION TEMPERATURE; QUANTUM DOTS; NANOPARTICLES; ANODIZATION; FABRICATION; REACTIVITY; PROPERTY; WATER; FTO;

D O I：

10.1016/j.jpcs.2020.109609

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We fabricated Sn-doped TiO2 nanotubular film via annealing of anodized TiO2 nanotubes grown on F-SnO2 (FTO) glass. Annealing was carried out at 500 degrees C in ambient air. Anatase crystal structure was achieved with no change in nanotubular morphology in respect to as-anodized amorphous TiO(2 )nanotubes. The X-ray photoelectron spectroscopy analysis revealed Sn on the surface of TiO2 film, following the thermal treatment, probably caused by the diffusion from FTO glass. Depth profile examination of the film chemical composition was conducted by elastic recoil detection analysis, which showed that in addition to the diffusion of Sn from FTO, diffusion of Ti to FTO concurrently occurred. Thus, a higher concentration of Sn was found at the bottom of the tubes, while a lower concentration was present on the tubes' surface top. This explains the improved optical response revealed by a diffuse reflectance spectroscopy. The absorption enhancement demonstrated that Sn-doped TiO2 film was efficient in the degradation of methyl orange dye under visible light.

引用

页数：8

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