The Preparation and Characterization of Immobilized TiO2/PEG by Using DSAT as a Support Binder

Nawawi, W.I.; Zaharudin, R.; Ishak, Mohd Azlan Mohd; Ismail, Khudzir; Ahmad, Zaiton

doi:10.3390/app7010024

Cited by 22 publications

(10 citation statements)

References 53 publications

(57 reference statements)

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“…The diffraction pattern does not show any anatase phase because of the annealing temperature factor whereby the anatase phase of TiO 2 will slowly form from the brookite phase of the TiO 2 when the annealing temperature increases to 500–600 °C [ 19 ]. The previous work done by Fischer et al (2017) stated that the anatase phase of TiO 2 would grow better at a higher temperature [ 20 ].…”

Section: Resultsmentioning

confidence: 99%

The Effect of Polyethylene Glycol Addition on Wettability and Optical Properties of GO/TiO2 Thin Film

et al. 2021

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Modification has been made to TiO2 thin film to improve the wettability and the absorption of light. The sol-gel spin coating method was successfully used to synthesize GO/TiO2 thin films using a titanium (IV) isopropoxide (TTIP) as a precursor. Different amounts of polyethylene glycol (PEG) (20 to 100 mg) were added into the parent sol solution to improve the optical properties and wettability of the GO/TiO2 thin film. The effect of different amounts of PEG was characterized using X-ray diffraction (XRD) for the phase composition, scanning electron microscopy (SEM) for microstructure observation, atomic force microscopy (AFM) for the surface topography, ultraviolet–visible spectrophotometry (UV-VIS) for the optical properties and wettability of the thin films by measuring the water contact angle. The XRD analysis showed the amorphous phase. The SEM and AFM images revealed that the particles were less agglomerated and surface roughness increases from 1.21 × 102 to 2.63 × 102 nm when the amount of PEG increased. The wettability analysis results show that the water contact angle of the thin film decreased to 27.52° with the increase of PEG to 80 mg which indicated that the thin film has hydrophilic properties. The optical properties also improved significantly, where the light absorbance wavelength became wider and the band gap was reduced from 3.31 to 2.82 eV with the presence of PEG.

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Section: Resultsmentioning

confidence: 99%

The Effect of Polyethylene Glycol Addition on Wettability and Optical Properties of GO/TiO2 Thin Film

et al. 2021

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“…Under identical conditions, it was found that only 18.7% of MB dye solution was adsorbed on the immobilized TiO2 in the dark after 30 min, while the amount of MB removed by the TiO2/PEG was 47.4% [26]. This suggests that the greater adsorption of MB on TiO2/PEG as compared to immobilized TiO2 is attributed to the higher surface area of TiO2/PEG (Brunauer-Emmett-Teller (BET) surface area of the photocatalysts: TiO2/PEG, 88 m 2 /g; TiO2, 49 m 2 /g).…”

Section: Photoactivity Tests Of Immobilized Tio2 and Tio2/peg Under Dmentioning

confidence: 99%

“…The MB dye was used as a target pollutant in aqueous media to assess the photocatalytic activity. This study serves as an extension of our immobilization reports [26]; thus, the influence of experimental parameters such as aeration flow rate, initial dye concentration, and effect of pH were also investigated.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2017

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Abstract:Immobilized TiO 2 and immobilized TiO 2 -polyethylene glycol (TiO 2 /PEG) films have been prepared via brush coating method. The formulation of immobilized TiO 2 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 TiO 2 /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 TiO 2 /PEG has showed a higher rate of photocatalytic activity compared to immobilize TiO 2 . The X-ray photoelectron spectroscopy and Fourier transform infrared (FT-IR) spectra of immobilized TiO 2 /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 TiO 2 /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.

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“…Dye-sensitized solar cell (DSSC) discovered by Grätzel [7] has emerged the potential of TiO2 as important element in early stage of PV. In the contrary, the photoactivity of TiO2 is restricted to ultraviolet (UV) region because of the wide band gap energy [8][9][10][11][12][13][14]. To overcome the band gap issue, researchers made attempts to broaden the optical response of TiO2 to visible light by surface modification, doping with metal or non-metal, dye or semiconductor sensitization [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polyaniline/TiO2 Photovoltaic Solar Cell

Lukhman

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Ghani

et al. 2021

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Polyaniline (PANI) and Kronos C doped Titanium dioxide (TiO2) was fabricated as PANI/TiO2 solar cell and reported on its simple photovoltaic performance detected by using voltameter and tested for stability for 12 months. The PANI and TiO2 were coated onto different indium tin oxide (ITO) glass plates by using a drop-casting method and sandwich attached for simple solar cell preparation. PT4 sample was the optimum solar cell with 0.2: 0.2 g of PANI: TiO2 ratio under 2 cm2 surface area based on the highest voltage produces from 100 mW cm-1 of light intensity metal highlight lamp. No voltage was detected for PT7 where the single layer TiO2 coated without PANI attached for solar cell system using same fabrication. It shows that PANI has a significant role in functionalizing the photovoltaic system. The C-N stretching of aromatic amine and C-N stretching for the benzenoid at peaks of 1222 and 1166 cm-1 respectively in FTIR spectra has confirmed the PANI structure supported by an XRD pattern. TP4 has the highest photovoltaic performance compared to other types of TiO2 based on the electron lifetime (τe) and the voltage produced was sustained up to 12 months.

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The Preparation and Characterization of Immobilized TiO2/PEG by Using DSAT as a Support Binder

Cited by 22 publications

References 53 publications

The Effect of Polyethylene Glycol Addition on Wettability and Optical Properties of GO/TiO2 Thin Film

The Effect of Polyethylene Glycol Addition on Wettability and Optical Properties of GO/TiO2 Thin Film

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

Preparation of Polyaniline/TiO2 Photovoltaic Solar Cell

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