Effect of CeO2 promotion on the sonocatalytic performance of ZrO2 nanoparticle catalysts

Y. Kristianto, Rosari Saleh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we promoted CeO2 into ZrO2 nanoparticles, using ultrasonic assisted-method, as an effort to improve the sonocatalytic performance of ZrO2 nanoparticles. The molar ratios of CeO2to ZrO2 were controlled as follows 0.1:1, 0.3:1, 0.5:1, and 1:1. The prepared samples were characterized by various measurements, such as X-ray diffraction (XRD) and thermal gravimetric analysis (TGA). XRD measurements showed tetragonal and cubic phases for ZrO2 and CeO2, respectively. TGA showed that mass degradation below 150°C was attributed to the loss of bound water from the surface of ZrO2. The sonocatalytic activity of the prepared samples was examined by sonodegradation of methylene blue (MB) under ultrasound irradiation. The results showed that the presence of a certain amount of CeO2 in ZrO2 nanoparticles improved its efficiency in degrading MB. The maximum degradation of MB was achieved at a molar ratio of 0.3:1. The catalyst dosages were also varied from 0.1 to 0.4 g/L, and the optimum catalyst dosage was found to be 0.3 g/L. From several reactive species, namely holes, electrons, and hydroxyl radical, holes were found to be the main reactive species with a significant role in degrading MB. In addition, the reusability test verified that the prepared samples were reusable.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
EditorsRatna Yuniati, Terry Mart, Ivandini T. Anggraningrum, Djoko Triyono, Kiki A. Sugeng
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417410
DOIs
Publication statusPublished - 22 Oct 2018
Event3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 - Bali, Indonesia
Duration: 26 Jul 201727 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume2023
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
CountryIndonesia
CityBali
Period26/07/1727/07/17

Keywords

  • CeO
  • ZrO
  • sonocatalytic

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