Triazine-Functionalized Silsesquioxane-Based Hybrid Porous Polymers for Efficient Photocatalytic Degradation of Both Acidic and Basic Dyes under Visible Light

Four triazine-functionalized silsesquioxane-based hybrid porous polymers (TSHPPs) were synthesized by Heck reaction of octavinylsilsesquioxane (OVS) with brominated phenyl or thiophene substituted triazine monomers. These hybrid polymers offered good thermal stability, high specific surface areas (up to 555 m(2) g(-1)), strong visible light absorption, and adjustable fluorescence properties. The materials showed high photocatalytic activity for the degradation of both acidic and basic dyes without additional oxidation agents or pH adjustments. Exposing to natural light, at a very low concentration of TSHPPs (0.2 mg mL(-1)), dyes with a concentration of up to 1000 ppm can be completely decolorized. After five consecutive iterations of degradation dyes, TSHPPs still showed good regenerability. This work provides an efficient method for the construction of photo-responsive porous materials for solar-to-chemical energy conversion and demonstrates their potential as green and sustainable environment-friendly catalysts.

Automated summary

The hybrid porous polymers based on triazine-functionalized silsesquioxane exhibit good thermal stability and high photocatalytic degradation activity for dyes, making them potential candidates for environmentally friendly catalysts.