Issue 42, 2016

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

Abstract

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

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

Supplementary files

Article information

Article type
Paper
Submitted
04 Aug 2016
Accepted
27 Sep 2016
First published
27 Sep 2016

J. Mater. Chem. A, 2016,4, 16714-16722

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

M. Ge and H. Liu, J. Mater. Chem. A, 2016, 4, 16714 DOI: 10.1039/C6TA06656A

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