Human Health Risk Assessment of the Photocatalytic Oxidation of BTEX over TiO₂/Volcanic Glass.

ABSTRACT: This study demonstrates rapid photocatalytic oxidation of a benzene, toluene, ethylbenzene, and xylene (BTEX) mixture over TiO₂/volcanic glass. The assessment of the photocatalytic oxidation of BTEX was conducted under conditions simulating those found in indoor environments affected by aromatic hydrocarbon release. We show, under UV-A intensities of 15 mW/cm² and an air flow rate of 55 m³/h, that low ppmv levels of BTEX concentrations can be reduced to below detectable levels. Solid-phase microextraction technique was employed to monitor the levels of BTEX in the test chamber throughout the photocatalytic oxidation, lasting approximately 21 h. Destruction of BTEX from the gas phase was observed in the following sequence: o-xylene, ethylbenzene, tolu

SUBMITTER: Smaiyl M 

PROVIDER: S-EPMC10745685 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature