Visible-Light-Driven Hydrogen Evolution Using Planarized Conjugated Polymer Photocatalysts.

ABSTRACT: Linear poly(p-phenylene)s are modestly active UV photocatalysts for hydrogen production in the presence of a sacrificial electron donor. Introduction of planarized fluorene, carbazole, dibenzo[b,d]thiophene or dibenzo[b,d]thiophene sulfone units greatly enhances the H₂ evolution rate. The most active dibenzo[b,d]thiophene sulfone co-polymer has a UV photocatalytic activity that rivals TiO₂, but is much more active under visible light. The dibenzo[b,d]thiophene sulfone co-polymer has an apparent quantum yield of 2.3 % at 420 nm, as compared to 0.1 % for platinized commercial pristine carbon nitride.

SUBMITTER: Sprick RS 

PROVIDER: S-EPMC4950146 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature