University of Oulu

Buddhika Rathnayake, Anne Heponiemi, Marjo Huovinen, Satu Ojala, Minna Pirilä, Jarkko Loikkanen, Saïd Azalim, Mohammed Saouabe, Rachid Brahmi, Kirsi Vähäkangas, Ulla Lassi & Riitta L. Keiski (2020) Photocatalysis and catalytic wet air oxidation: Degradation and toxicity of bisphenol A containing wastewaters, Environmental Technology, 41:25, 3272-3283, DOI: 10.1080/09593330.2019.1604817

Photocatalysis and catalytic wet air oxidation : degradation and toxicity of bisphenol A containing wastewaters

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Author: Rathnayake, Buddhika1; Heponiemi, Anne2; Huovinen, Marjo3;
Organizations: 1Environmental and Chemical Engineering, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland
2Sustainable Chemistry, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland
3School of Pharmacy/Toxicology, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
4Department of Physics, St John‘s University, 8000 Utopia Parkway, Queens, NY 11439, USA
5University of Chouaib Doukkali, Avenue Jabrane Khalil Jabrane, B.P.299, 24000 El Jadida, Morocco
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
Persistent link:
Language: English
Published: Informa, 2020
Publish Date: 2020-04-18


Bisphenol A (BPA) is a commonly used chemical in consumer products. It is an endocrine disrupter that has potentially significant negative effects on human health. The use and chemical stability of BPA have resulted in the appearance of the chemical in wastewaters. Since the current wastewater treatment technologies are not effective enough to remove BPA, new methods to degrade BPA are required. In this paper, we report the efforts made towards developing a bi-functional catalyst for consecutive catalytic wet air oxidation-photocatalytic water treatment. It was found that 2.5% Pt/Ti0.8Ce0.2O2 is a potential bi-functional catalyst for the consecutive treatment. Concentration and toxicity of BPA were successfully reduced by catalytic wet air oxidation. Although BPA was further reduced by photocatalysis, it was not reflected in further decrease of cell toxicity. Thus wet-air oxidation combined with photocatalysis is a promising approach for the reduction of BPA.

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Series: Environmental technology
ISSN: 0959-3330
ISSN-E: 1479-487X
ISSN-L: 0959-3330
Volume: 41
Issue: 25
Pages: 3272 - 3283
DOI: 10.1080/09593330.2019.1604817
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
1172 Environmental sciences
1182 Biochemistry, cell and molecular biology
215 Chemical engineering
218 Environmental engineering
Funding: This work was supported by Academy of Finland: [Grant Number 263397].
Academy of Finland Grant Number: 263397
Detailed Information: 263397 (Academy of Finland Funding decision)
Copyright information: © 2019 Taylor & Francis. This is an Accepted Manuscript of an article published by Taylor & Francis in Environmental Technology on 18 Apr 2019, available online: