Elaboration of Amorphous and Crystalline Titanium Dioxide on FTO: its Characterization and Photocatalytic Effect on Orange Methyl

被引：1
作者：
Foudil, Rahal [1 ]
Djamila, Abdi [2 ]
机构：
[1] UFA Setif 1, Fac Technol, Dept Genie Proc, Lab Energet & Electrochim Solide, Setif 19000, Algeria
[2] UFA Setif 1, Fac Sci, Dept Chim, Lab Energet & Electrochim Solide, Setif 19000, Algeria
来源：
PORTUGALIAE ELECTROCHIMICA ACTA | 2020年 / 38卷 / 05期
关键词：
titanium dioxide; electrodeposition; nanostructures; photocatalytic oxidation; methyl orange dye; TIO2; THIN-FILMS; CATHODIC ELECTROSYNTHESIS; ANATASE PHASE; AZO DYES; DEGRADATION; BEHAVIOR; ELECTRODEPOSITION; COATINGS; PARAMETERS;
D O I：
10.4152/pea.202005331
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this paper, we report on the preparation of an amorphous and nanocrystalline structure of titanium dioxide, by cathodic electrodeposition on fluorine doped tin dioxide (FTO) coated glass, from an aqueous peroxo-titanium complex solution. Structural X-ray analysis shows anatase phase for heated deposits, and an amorphous form for non-heated deposits. Scanning electron microscopy (SEM) allowed investigating the morphological aspect of the deposits which exhibited nano-particulate grain size. AFM results exhibited the different roughness values of both kinds of films. The crystalline deposits have been used as catalysts for the photocatalytic oxidation of methyl orange dye, under an irradiation source (UV lamp of 365 nm). The results revealed that the dye has undergone a slight degradation under UV illumination. Using spectrophotometer measurements, the decolourisation rate was estimated from residual concentration.
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页码：331 / 341
页数：11
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