University of Oulu

Anne Heponiemi, Said Azalim, Tao Hu, Tuomas Vielma, Ulla Lassi. Efficient removal of bisphenol A from wastewaters: Catalytic wet air oxidation with Pt catalysts supported on Ce and Ce–Ti mixed oxides. AIMS Materials Science, 2019, 6(1): 25-44. doi: 10.3934/matersci.2019.1.25

Efficient removal of bisphenol A from wastewaters : catalytic wet air oxidation with Pt catalysts supported on Ce and Ce–Ti mixed oxides

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Author: Heponiemi, Anne1; Azalim, Said2; Hu, Tao1;
Organizations: 1Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland
2Department of Physics, St. John’s University, 8000 Utopia Parkway, Queens, NY 11439, USA
3Kokkola University Consortium Chydenius, University of Jyväskylä, P.O. Box 567, FI-67701 Kokkola, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
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Language: English
Published: AIMS Press, 2019
Publish Date: 2019-02-05


Catalytic wet air oxidation (CWAO) of an aqueous solution of bisphenol A (BPA) was investigated at 160 ℃ and 2.0 MPa of air in a batch reactor. Activity of supported platinum catalysts (2.5 wt%), prepared by wet impregnation, was compared with pure cerium and cerium–titanium oxide catalysts. Supported platinum catalysts showed higher activities in the removal of BPA than pure CeO2, Ce0.8Ti0.2O2 and Ce0.2Ti0.8O2. The oxidation reaction was followed the pseudo-first order rate law and the highest BPA removal, 97% and 95%, was achieved with Pt/CeO2 and Pt/Ce0.8Ti0.2O2 catalysts respectively. The CWAO of BPA aqueous solution was not a surface area specific reaction but the more important factor affecting the activity of studied catalysts was the amount of chemisorbed oxygen of these samples.

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Series: AIMS materials science
ISSN: 2372-0468
ISSN-E: 2372-0484
ISSN-L: 2372-0468
Volume: 6
Issue: 1
Pages: 25 - 44
DOI: 10.3934/matersci.2019.1.25
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Funding: The authors gratefully acknowledge the Academy of Finland for providing research funding, AOPI project (263397) within the research program for Sustainable Governance of Aquatic Resources (AKVA).
Academy of Finland Grant Number: 263397
Detailed Information: 263397 (Academy of Finland Funding decision)
Copyright information: © 2019 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (