Selective dye adsorption and metal ion detection using multifunctional silsesquioxane-based tetraphenylethene-linked nanoporous polymers

A multifunctional hybrid porous material with a S_BET of 1910 cm² g⁻¹ was prepared by the Friedel–Crafts reaction of octavinylsilsesquioxane (OVS) with tetraphenylethene (TPE). It exhibits highly selective adsorption for dye molecules and fluorescence detection for metal ions. A moderate CO₂ adsorption capacity of 1.42 mmol g⁻¹ at 273.0 K/101 kPa is also found for this material.