Removal of Phenol in Aqueous Solution by Nanocrystalline TiO2/Activated Carbon Composite Catalyst

Authors

  • Chalermpan Ngamsopasiriskun Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
  • Saijai Charnsethikul Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
  • Surachai Thachepan Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
  • Apisit Songsasen Center of Excellence for Innovation in Chemistry, Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

titanium(IV) dioxide, activated carbon, TiO2/AC, photocatalyst, phenol

Abstract

A nanocrystalline TiO2/activated carbon composite catalyst (TiO2/AC) was prepared by the sol-gel method in isopropanol mixed with activated carbon (AC). The preparation of TiO2/AC was calcined at 400°C and characterized. The X-ray diffraction (XRD) pattern indicated that the TiO2/AC
was in the anatase phase. The transmission electron microscopy (TEM) image showed that the crystallite size of TiO2/AC was in the range of 7-9 nm. The specific surface area from the Brunauer, Emmett and Teller (BET) method was 441m2/g and the adsorption capacity determined from the adsorption isotherm was 5.0×104 mg/g. The TiO2/AC calcined at 400°C was used to remove phenol in aqueous solution under UV irradiation, which showed the highest removal efficiency when compared with TiO2 (Degussa- P25) and AC. The percentage removal of 100 ppm phenol by 0.4 g of TiO2/AC in 4 h was 68.03%, due to both adsorption (54.14%) and photocatalytic degradation (13.88%), with the highest rate constant being 0.1080 h-1.

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Published

2010-12-30

How to Cite

Chalermpan Ngamsopasiriskun, Saijai Charnsethikul, Surachai Thachepan, and Apisit Songsasen. 2010. “Removal of Phenol in Aqueous Solution by Nanocrystalline TiO2/Activated Carbon Composite Catalyst”. Agriculture and Natural Resources 44 (6). Bangkok, Thailand:1176-82. https://li01.tci-thaijo.org/index.php/anres/article/view/245099.

Issue

Vol. 44 No. 6 (2010): November-December

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.