Paper-based Photocatalysts Immobilization without Coffee Ring Effect for Photocatalytic Water Purification.

ABSTRACT: Photocatalytic water purification is important for the degradation of organic pollutants, attracting intensive interests. Photocatalysts are preferred to be immobilized on a substrate in order to reduce the laborious separation and recycling steps. To get uniform irradiation, the photocatalysts are preferred to be even/uniform on the substrate without aggregation. Generally, the "coffee ring effect" occurs on the substrate during solvent evaporation, unfortunately resulting in the aggregation of the photocatalysts. This aggregation inevitably blocks the exposure of active sites, reactant exchange, and light absorption. Here, we reported a paper-based photocatalyst immobilization method to solve the "coffee ring" problem. We also used a "drop reactor" to achieve good photocatalytic efficien

SUBMITTER: Li Q 

PROVIDER: S-EPMC7143163 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature