Photocatalytic degradation of methylene blue under UV light irradiation on prepared carbonaceous TiO2

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Abstract

This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO 2/PANi prepared by in situ polymerization method, while the TiO 2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO 2/C > TiO2/PANi > TiO2 (179 > 134 > 54 > 9 m2 g-1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.

Original languageEnglish
Article number415136
JournalScientific World Journal
Volume2014
DOIs
Publication statusPublished - 2014

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Methylene Blue
Ultraviolet Rays
Ultraviolet radiation
Activated carbon
activated carbon
irradiation
Carbon
Irradiation
Degradation
degradation
carbon
Composite materials
Ultraviolet spectroscopy
polymerization
Specific surface area
Calcination
X ray powder diffraction
Differential thermal analysis
pyrolysis
Fourier transform

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Medicine(all)

Cite this

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title = "Photocatalytic degradation of methylene blue under UV light irradiation on prepared carbonaceous TiO2",
abstract = "This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO 2/PANi prepared by in situ polymerization method, while the TiO 2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO 2/C > TiO2/PANi > TiO2 (179 > 134 > 54 > 9 m2 g-1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69{\%} conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.",
author = "{Che Ramli}, {Zatil Amali} and Nilofar Asim and {Wan Nor Roslam}, {Wan Isahak} and Zeynab Emdadi and {Ahmad Ludin}, Norasikin and Yarmo, {Mohd. Ambar} and Kamaruzzaman Sopian",
year = "2014",
doi = "10.1155/2014/415136",
language = "English",
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T1 - Photocatalytic degradation of methylene blue under UV light irradiation on prepared carbonaceous TiO2

AU - Che Ramli, Zatil Amali

AU - Asim, Nilofar

AU - Wan Nor Roslam, Wan Isahak

AU - Emdadi, Zeynab

AU - Ahmad Ludin, Norasikin

AU - Yarmo, Mohd. Ambar

AU - Sopian, Kamaruzzaman

PY - 2014

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N2 - This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO 2/PANi prepared by in situ polymerization method, while the TiO 2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO 2/C > TiO2/PANi > TiO2 (179 > 134 > 54 > 9 m2 g-1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.

AB - This study involves the investigation of altering the photocatalytic activity of TiO2 using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO 2/PANi prepared by in situ polymerization method, while the TiO 2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO 2/C > TiO2/PANi > TiO2 (179 > 134 > 54 > 9 m2 g-1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.

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