Effect of Layer Sequence in Ce-Ni Bilayer Films on Catalytic Ozonation of Methylparaben.

ABSTRACT: Advanced oxidation processes (AOPs), particularly catalytic ozonation, offer effective strategies for the degradation of contaminants of emerging concern (CEC). This study evaluates the role of layer sequence in Ce-Ni bilayer thin films synthesized via ultrasonic spray pyrolysis (USP) in the catalytic ozonation of methylparaben (MePB), a widely used antimicrobial preservative and representative CEC. Using water as the only solvent and benign precursors, the films were directly deposited on glass substrates. While ozonation alone led to full MePB degradation, it achieved limited mineralization. The inclusion of Ce-Ni bilayer catalysts significantly enhanced total organic carbon (TOC) removal. Notably, the Ce-Ni (L-L) configuration outperformed Ni-Ce (L-L), achieving 58.5% mineralization vs

SUBMITTER: Franco Pelaez D 

PROVIDER: S-EPMC12489640 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature