A silsesquioxane-based thiophene-bridged hybrid nanoporous network as a highly efficient adsorbent for wastewater treatment

摘要: A novel hybrid nanoporous network was easily fabricated by the one-step Heck reaction of octavinylsilsesquioxane with dibromothiophene. FTIR, solid state CP-MAS-NMR (13C and 29Si), elemental analysis indicate that a thiophene unit has been successfully introduced into silsesquioxane-based network. The Brunauer–Emmett–Teller (BET) measurement shows this possesses high surface area 915 m2 g−1, large pore volume 1.61 cm3 unique hierarchical pores, i.e. uniform micropores continuous multimodal mesopores. Remarkably, it displays an ultrahigh adsorption capability 1402 mg g−1 for Rhodamine B, 862 Methylene Blue, which are among highest values compared other reported adsorbents. It also good removal toxic heavy metal ions from wastewater. More importantly, could remove multiple pollutants efficiently wastewater simple filtration excellent regeneration performance.