NDLI: Hyper-crosslinked β-cyclodextrin porous polymer: an adsorption-facilitated molecular catalyst support for transformation of water-soluble aromatic molecules

Content Provider	Royal Society of Chemistry (RSC)
Author	Dai, Sheng Liu, Honglai Chai, Song-Hai Meng, Bo Li, Haiying
Copyright Year	2016
Abstract	A hyper-crosslinked β-cyclodextrin porous polymer (BnCD-HCPP) was designed and synthesized facilely by β-cyclodextrin benzylation and subsequent crosslinking via a Friedel–Crafts alkylation route. The BnCD-HCPP shows an extremely high BET surface area, large pore volume, and high thermal stability, making it a highly efficient adsorbent for removal of aromatic pollutants from water. The adsorption efficiency in terms of distribution coefficient, defined as the ratio of adsorption capacity to equilibrium adsorbate concentration, ranged from 103 to 106 mL g−1 within a concentration of 0–100 ppm, one order of magnitude higher than that of other β-cyclodextrin-based adsorbents reported previously. The molar percentage of adsorbate to β-cyclodextrin exceeded 300%, suggesting that the adsorption occurred not only in the cyclodextrin cavities via a 1 : 1 complexation, but also in the nanopores of the BnCD-HCPP created during the hyper-crosslinking. The BnCD-HCPP can be further functionalized by incorporation of gold nanoparticles for catalytic transformation of adsorbed phenolic compounds such as 4-nitrophenol to 4-aminophenol.
Starting Page	905
Ending Page	909
Page Count	5
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	7
Issue Number	2
Journal	Chemical Science
DOI	10.1039/c5sc04034e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	BET Friedel Cyclodextrin 4-Nitrophenol Adsorption Aminophenol Polymer Friedel\u2013Crafts reaction Concentration
Content Type	Text
Resource Type	Article
Subject	Chemistry

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