Preparation of CeO2/TiO2/NGP composites as efficient catalyst for removal of organic dye using photo-, sono-, and sonophotocatalytic activity

H. Tju, A. Taufik, R. Saleh

Research output: Contribution to journalConference articlepeer-review

Abstract

A simple hydrothermal technique was used to incorporate nanographene platelets (NGP) with CeO2/TiO2 composites with different NGP contents. The prepared samples were then evaluated as a heterogeneous catalyst to degrade methylene blue (MB) under visible light irradiation, ultrasonic irradiation, and a combination of the two. The structural and morphological properties of CeO2/TiO2/NGP composites were investigated by X-ray diffraction (XRD). The XRD spectra of CeO2/TiO2/NGP revealed the spectra of NGP, CeO2, and TiO2 nanoparticles indicating the desired combination. Further investigation using TGA measurements show that weight was lost at around 600 °C due to the combustion of carbon. The surface area of the composites was further increased. The prepared CeO2/TiO2-10 wt.% NGP composites were able to degrade MB four times higher than pristine CeO2/TiO2 composites, which may be due to a lower recombination rate; however, further increments of NGP decreased the degradation efficiency.

Original languageEnglish
Article number012005
JournalJournal of Physics: Conference Series
Volume1725
Issue number1
DOIs
Publication statusPublished - 12 Jan 2021
Event2nd Basic and Applied Sciences Interdisciplinary Conference 2018, BASIC 2018 - Depok, Indonesia
Duration: 3 Aug 20184 Aug 2018

Keywords

  • Organic dye
  • Photocatalytic
  • Sonocatalytic
  • Sonophotocatalytic

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