Adsorption studies of a microporous phthalocyanine network polymer

Langmuir : the ACS Journal of Surfaces and Colloids
A Verena MaffeiNeil B McKeown

Abstract

The adsorption/desorption of N2 at 77 K and the adsorption from aqueous solution at 298 K of four organic probe molecules of different sizes (phenol, 4-nitrophenol, orange II, naphthol green B) were studied for a phthalocyanine network polymer of intrinsic microporosity (PIM) and for an activated carbon (Darco 20-40 mesh). N2 sorption analysis gave similar surface areas for the PIM and the carbon (610 and 545 m2 g(-1), respectively) but showed differences in pore size distribution, the PIM being essentially microporous (pore size < 2 nm), with a high proportion of ultramicropores (<0.7 nm), while the carbon had a broader pore size distribution, extending into the mesopore region. The carbon acted as an adsorbent for all the organic probe molecules studied, while the PIM was more selective, adsorbing the smaller molecules but rejecting the large dye naphthol green B. The PIM offers selectivity combined with a well-defined chemical structure incorporating catalytic sites.

References

Jan 15, 2005·Chemistry : a European Journal·Neil B McKeownDetlev Fritsch

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Citations

Apr 7, 2007·Physical Chemistry Chemical Physics : PCCP·Peter M BuddAllan Walton
Apr 22, 2010·Journal of Agromedicine·Lee D WilsonSarker T Mahmud
Mar 23, 2013·The Journal of Physical Chemistry. B·Shaohua ChenDetlev Fritsch
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Mar 4, 2008·Journal of Hazardous Materials·Mingfei ZhaoPeng Liu
Jul 15, 2015·Chemical Communications : Chem Comm·Xuesong Ding, Bao-Hang Han
Feb 7, 2007·Chemical Communications : Chem Comm·Bader S GhanemAllan Walton
Nov 5, 2016·ACS Applied Materials & Interfaces·Zhongshan LiuMingliang Ye
Sep 2, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Jens WeberWinfried Böhlmann
Feb 20, 2008·The Journal of Physical Chemistry. B·V Calvino-CasildaI F Piérola

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