Highly effective removal of perfluorooctanoic acid (PFOA) in water with DBD-plasma-enhanced rice husks.

ABSTRACT: Adsorption is regarded as an efficient method to eliminate per- and polyfluoroalkyl substances from an aqueous solution. In the present investigation, an adsorbent based on rice husks (RHs) was successfully prepared by phosphoric acid (PA) activation and dielectric barrier discharge (DBD) plasma treatment, and it was used to adsorb perfluorooctanoic acid (PFOA) from water. The electrodes employed in the experiment were planar type. This research investigated RH surface properties and adsorption capacity before and after modification using DBD plasma. The results revealed that the He-O₂ plasma modification introduced oxygen-containing functional groups and increased the PFOA removal efficiency. Increasing the oxygen content and total gas flow rate to 30 vol.% and 1.5 L/min, respe

SUBMITTER: Sahara T 

PROVIDER: S-EPMC10425357 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature