Photocatalytic degradation of organic dye using titanium dioxide modified with metal and non-metal deposition

Muhammad Anas, Dong Suk Han, Khaled Mahmoud, Hyunwoong Park, Ahmed Abdel-Wahab

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this study, photocatalytic degradation of methyl orange (MO) as an example of organic dye was investigated using different wt% Pd-loaded and N-doped P-25 titanium dioxide (TiO<inf>2</inf>) nanoparticles, as example of metal and nonmetal-doped TiO<inf>2</inf>, respectively. The Pd-loaded and N-doped TiO<inf>2</inf> photocatalysts were prepared by post-incorporation method using K<inf>2</inf>PdCl<inf>4</inf> and urea, respectively, as precursors. A variety of surface analysis techniques were used for characterization of surface and functional group while using ultraviolet/visible (UV-vis) analysis for monitoring photocatalytic degradation of MO. Kinetic parameters were obtained using Langmuir-Hinshelwood model to determine the degradation rate constants. It was found that the metal-loaded titanium dioxide degraded MO in water at a higher rate than did non-metal-loaded titanium dioxide fabricated by using the post-synthesis method. Also, the pure P25-TiO<inf>2</inf> degraded MO more than N-doped TiO<inf>2</inf> because of decreased surface area by particle agglomeration after being made by the post-incorporation method.

Original languageEnglish
Article number2998
Pages (from-to)209-218
Number of pages10
JournalMaterials Science in Semiconductor Processing
Volume41
DOIs
Publication statusPublished - 27 Aug 2015

Fingerprint

titanium oxides
Titanium dioxide
Coloring Agents
Dyes
dyes
Metals
degradation
Degradation
metals
Nonmetals
Surface analysis
Photocatalysts
agglomeration
ureas
Kinetic parameters
Urea
Functional groups
Rate constants
Agglomeration
Nanoparticles

Keywords

  • Langmuir-Hinshelwood kinetics
  • Methyl orange
  • Nitrogen
  • Palladium
  • Titanium dioxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

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title = "Photocatalytic degradation of organic dye using titanium dioxide modified with metal and non-metal deposition",
abstract = "In this study, photocatalytic degradation of methyl orange (MO) as an example of organic dye was investigated using different wt{\%} Pd-loaded and N-doped P-25 titanium dioxide (TiO2) nanoparticles, as example of metal and nonmetal-doped TiO2, respectively. The Pd-loaded and N-doped TiO2 photocatalysts were prepared by post-incorporation method using K2PdCl4 and urea, respectively, as precursors. A variety of surface analysis techniques were used for characterization of surface and functional group while using ultraviolet/visible (UV-vis) analysis for monitoring photocatalytic degradation of MO. Kinetic parameters were obtained using Langmuir-Hinshelwood model to determine the degradation rate constants. It was found that the metal-loaded titanium dioxide degraded MO in water at a higher rate than did non-metal-loaded titanium dioxide fabricated by using the post-synthesis method. Also, the pure P25-TiO2 degraded MO more than N-doped TiO2 because of decreased surface area by particle agglomeration after being made by the post-incorporation method.",
keywords = "Langmuir-Hinshelwood kinetics, Methyl orange, Nitrogen, Palladium, Titanium dioxide",
author = "Muhammad Anas and Han, {Dong Suk} and Khaled Mahmoud and Hyunwoong Park and Ahmed Abdel-Wahab",
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AU - Anas, Muhammad

AU - Han, Dong Suk

AU - Mahmoud, Khaled

AU - Park, Hyunwoong

AU - Abdel-Wahab, Ahmed

PY - 2015/8/27

Y1 - 2015/8/27

N2 - In this study, photocatalytic degradation of methyl orange (MO) as an example of organic dye was investigated using different wt% Pd-loaded and N-doped P-25 titanium dioxide (TiO2) nanoparticles, as example of metal and nonmetal-doped TiO2, respectively. The Pd-loaded and N-doped TiO2 photocatalysts were prepared by post-incorporation method using K2PdCl4 and urea, respectively, as precursors. A variety of surface analysis techniques were used for characterization of surface and functional group while using ultraviolet/visible (UV-vis) analysis for monitoring photocatalytic degradation of MO. Kinetic parameters were obtained using Langmuir-Hinshelwood model to determine the degradation rate constants. It was found that the metal-loaded titanium dioxide degraded MO in water at a higher rate than did non-metal-loaded titanium dioxide fabricated by using the post-synthesis method. Also, the pure P25-TiO2 degraded MO more than N-doped TiO2 because of decreased surface area by particle agglomeration after being made by the post-incorporation method.

AB - In this study, photocatalytic degradation of methyl orange (MO) as an example of organic dye was investigated using different wt% Pd-loaded and N-doped P-25 titanium dioxide (TiO2) nanoparticles, as example of metal and nonmetal-doped TiO2, respectively. The Pd-loaded and N-doped TiO2 photocatalysts were prepared by post-incorporation method using K2PdCl4 and urea, respectively, as precursors. A variety of surface analysis techniques were used for characterization of surface and functional group while using ultraviolet/visible (UV-vis) analysis for monitoring photocatalytic degradation of MO. Kinetic parameters were obtained using Langmuir-Hinshelwood model to determine the degradation rate constants. It was found that the metal-loaded titanium dioxide degraded MO in water at a higher rate than did non-metal-loaded titanium dioxide fabricated by using the post-synthesis method. Also, the pure P25-TiO2 degraded MO more than N-doped TiO2 because of decreased surface area by particle agglomeration after being made by the post-incorporation method.

KW - Langmuir-Hinshelwood kinetics

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