Immobilized TiO2-Polyethylene Glycol: Effects of Aeration and pH of Methylene Blue Dye

Immobilized TiO2 and immobilized TiO2-polyethylene glycol (TiO2/PEG) films have been prepared via brush coating method. The formulation of immobilized TiO2 film was prepared by mixing distilled water with P25, while the formulation containing P25 combined with 8% PEG in distilled water was used in p...

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Bibliographic Details
Published in:Applied sciences 2017-05, Vol.7 (5), p.508
Main Authors: Nawawi, Wan, Zaharudin, Raihan, Zuliahani, Ahmad, Shukri, Dyia, Azis, Tun, Razali, Zainab
Format: Article
Language:English
Subjects:
Adhesives
Brushes
Catalytic activity
Coating
Computing time
Correlation analysis
Distilled water
Dyes
Formulations
Fourier analysis
Glass
Heat treatment
Infrared radiation
Infrared spectra
Infrared spectroscopy
Light emitting diodes
Methylene blue
Photodegradation
Photoelectron spectroscopy
Polyethylene glycol
Polyethylenes
Spectroscopy
Spectrum analysis
Titanium dioxide
Water scarcity
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Summary:Immobilized TiO2 and immobilized TiO2-polyethylene glycol (TiO2/PEG) films have been prepared via brush coating method. The formulation of immobilized TiO2 film was prepared by mixing distilled water with P25, while the formulation containing P25 combined with 8% PEG in distilled water was used in preparing immobilized TiO2/PEG. A double sided adhesive tape (DSAT) was stacked onto a glass surface prior to coating with the formulations and annealing by a thermal treatment at 100 °C for 15 min. The photocatalytic activity of immobilized photocatalysts was evaluated under photodegradation of methylene blue (MB). It was observed that immobilized TiO2/PEG has showed a higher rate of photocatalytic activity compared to immobilize TiO2. The X-ray photoelectron spectroscopy and Fourier transform infrared (FT-IR) spectra of immobilized TiO2/PEG sample proved that the existence of C=O led to enhanced photoactivity efficiency under normal light and visible light irradiations. The photocatalytic activity performance of immobilized TiO2/PEG was the highest at 75 mL·min−1 aeration rate and pH 11 of MB dye. The correlation between of all these parameters was investigated in this study.
ISSN:2076-3417
2076-3417
DOI:10.3390/app7050508