Oxidative degradation of phenol via in-situ generation of H2O2 in a flow reactor

Li, Rongjian, Lewis, Richard J., Dummer, Nicholas F. ORCID: https://orcid.org/0000-0002-0946-6304, Morgan, David J. ORCID: https://orcid.org/0000-0002-6571-5731, Kitching, Ella, Slater, Thomas ORCID: https://orcid.org/0000-0003-0372-1551 and Hutchings, Graham J. ORCID: https://orcid.org/0000-0001-8885-1560 2025. Oxidative degradation of phenol via in-situ generation of H2O2 in a flow reactor. Catalysis Letters 155 (11) , 373. 10.1007/s10562-025-05221-3

PDF - Published Version Available under License Creative Commons Attribution. Download (3MB)

Abstract

AuPd nanoalloys are shown to offer significantly enhanced catalytic performance for both the direct synthesis of hydrogen peroxide (H2O2) and the in-situ oxidative degradation of phenol. Under conditions where limited phenol conversion is observed using commercial H2O2, the bimetallic Au–Pd system facilitates efficient in-situ generation of H2O2 and associated reactive oxygen species (ROS), enabling phenol conversion rates exceeding 70%. By optimizing key reaction parameters, near-complete phenol degradation was achieved, alongside the effective breakdown of intermediate phenolic by-products. Notably, unlike earlier reported systems, the optimized 0.5%Au-0.5%Pd/TiO2 catalyst exhibited excellent stability, maintaining consistent performance over 50 h of continuous operation, highlighting the potential to apply the in-situ approach for long-term application in advanced water treatment processes. Graphical Abstract:

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Schools > Chemistry
Additional Information:	License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/, Type: open-access
Publisher:	Springer
ISSN:	1011-372X
Date of First Compliant Deposit:	29 October 2025
Date of Acceptance:	12 October 2025
Last Modified:	29 Oct 2025 10:50
URI:	https://orca.cardiff.ac.uk/id/eprint/181969

Actions (repository staff only)

Edit Item