Considering photocatalytic activity of N/F/S-doped TiO2 thin films in degradation of textile waste under visible and sunlight irradiation

被引：29
作者：
Behpour, Mohsen [1 ,2 ]
Foulady-Dehaghi, Rozita [1 ,2 ]
Mir, Noshin [3 ]
机构：
[1] Univ Kashan, Dept Analyt Chem, Fac Chem, POB 87317-51167, Kashan, Iran
[2] Univ Kashan, Inst Nano Sci & Nano Technol, POB 87317-51167, Kashan, Iran
[3] Univ Zabol, Dept Chem, POB 98615-538, Zabol, Iran
来源：
SOLAR ENERGY | 2017年 / 158卷
关键词：
F-TiO2; nanolayers; Photodegradation; Textile waste water; Visible and sun light; SOL-GEL SYNTHESIS; ORGANIC POLLUTANTS; LIGHT; NANOPARTICLES; PHOTODEGRADATION; MICROSTRUCTURES; IMMOBILIZATION; PARAMETERS;
D O I：
10.1016/j.solener.2017.10.034
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Degradation of azo dyes as textile industry pollutants was investigated by photocatalytic process using F, N and S tri-doped TiO2 thin films immobilized on the glass spheres. Nanocatalyst thin films were successfully prepared via sol-gel dip-coating method. The immobilized TiO2 on the glass spheres were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDS), diffuse reflectance spec; troscopy (DRS) and CHNS analysis. UV-Vis spectroscopy and chemical oxygen demand (COD) have been used in order to evaluate the degradation process. It was found that optimization of fluorine at 5% doping can give rise to the maximum decomposition of 86-100% within 6 h under visible irradiation. Also, according to the COD results, after 6 h, a reduction of the COD value from the azo dye solution was apparently obtained in same condition. The results showed that the synthesized nano-layers have good stability and reproducibility and therefore are potential to be used in various industrial processes.
引用
收藏
页码：636 / 643
页数：8
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