Control of Membrane Fouling in Organics Filtration Using Ce-Doped Zirconia and Visible Light.

ABSTRACT: Membrane fouling has been a major issue in the development of more efficient water treatment processes. Specifically in surface waters filtration, organic matter, such as humic-like substances, can cause irreversible fouling. Therefore, this study evaluates the activity of a photocatalytic layer composed of Ce-doped zirconia nanoparticles in improving the fouling resistance during filtration of an aqueous solution of humic acid (HA). These nanoparticles were prepared by hydrothermal and sol-gel processes and then characterized. Before the filtration experiments, the photodegradation of HA catalyzed by Ce-doped zirconia nanoparticles in dispersion was studied. It was observed that the sol-gel prepared Ce-ZrO₂ exhibited higher HA removal in practically neutral pH, achieving 93% efficiency in

SUBMITTER: Bortot Coelho FE 

PROVIDER: S-EPMC6523972 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature