Synthesis of TiO2 Nanofiber-Nanoparticle Composite Catalyst and Its Photocatalytic Decolorization Performance of Reactive Black 5 Dye from Aqueous Solution

Journal of Engineering and Technological Sciences

Doni Sugiyana¹  Amanda Larasati²  Edwan Kardena²  Suprihanto Notodarmojo²  Marisa Handajani² 

[1] Balai Besar Tekstil, Ministry of Industry Indonesia;Department of Environmental Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung

关键词: decolorization;    nanofiber-nanoparticle composite;    photocatalytic;    textile dyeing wastewater;    TiO2.;   

DOI  :  10.5614/j.eng.technol.sci.2017.49.3.4

学科分类：工程和技术（综合）

来源: Institute for Research and Community Services ITB

【 摘 要 】

In this study, synthesis of TiO 2nanofiber-nanoparticle composite photocatalyst was carried out and its photocatalytic decolorization performance was investigated. TiO 2nanofibers were developed by electrospinning. The TiO 2nanoparticle films were prepared by dipping the glass substrates into a sol solution made by sol-gel method. The TiO 2nanofiber-nanoparticle composite was immobilized on glass plates and annealed at 500 °C. The effects of pH and catalyst loading were studied during a photocatalytic decolorization experiment using simulated dyeing wastewater containing Reactive Black 5 (RB5). The photocatalytic decolorization performance with 60 min of UV-irradiation time using the TiO 2nanofiber-nanoparticle composite was found to be higher (94.4%) than that of the TiO 2nanofibers (75.5%) and the TiO 2nanoparticle catalyst (74.1%). An alkaline condition and high catalyst loading were found to be preferable to achieve optimum photocatalytic decolorization of Reactive Black 5 (RB5). The TiO 2nanofiber-nanoparticle composite could be recovered after reusing multiple times through re-annealing at a high temperature. TiO 2nanofibers based on a composite catalyst that is strongly immobilized on glass plates enlarges the prospect of the photocatalytic method as a compact, practical and effective advanced treatment process for effluents from textile wastewater.

【 授权许可】

CC BY