A polycationic covalent organic framework: A robust adsorbent for anionic dye pollutants

Shang Bo Yu; Hao Lyu; Jia Tian; Hui Wang; Dan Wei Zhang; Yi Liu; Zhan Ting Li

doi:10.1039/c6py00281a

A polycationic covalent organic framework: A robust adsorbent for anionic dye pollutants

Shang Bo Yu, Hao Lyu, Jia Tian, Hui Wang^*, Dan Wei Zhang, Yi Liu, Zhan Ting Li

^*Corresponding author for this work

School of Chemistry

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

A polycationic two-dimensional (2D) covalent organic framework (PC-COF) has been prepared via the formation of imine bonds from the condensation of a rigid triangular triamine and a 4,4′-bipyridinium (BIPY)-derived dialdehyde. The new polycationic COF has a honeycomb structure with a pore diameter of about 5.8 nm. Powder X-ray diffraction (PXRD) and small-angle X-ray scattering (SAXS) experiments supported that the 2D layer structures stack into 3D porous frameworks and the adjacent BIPY dications stack in an eclipsed pattern, with chloride counterions being sandwiched in between the layers. PC-COF is highly stable in water, and functions as a robust adsorbent, as demonstrated by its high uptake capacity (>97%) towards a range of anionic organic dye pollutants from water even at a low concentration (3.2 × 10^-5 M). Moreover, the adsorbed guests could be released at high recovery rate, such as in the case of methyl orange.

Original language	English
Pages (from-to)	3392-3397
Number of pages	6
Journal	Polymer Chemistry
Volume	7
Issue number	20
DOIs	https://doi.org/10.1039/c6py00281a
Publication status	Published - 28 May 2016

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title = "A polycationic covalent organic framework: A robust adsorbent for anionic dye pollutants",

abstract = "A polycationic two-dimensional (2D) covalent organic framework (PC-COF) has been prepared via the formation of imine bonds from the condensation of a rigid triangular triamine and a 4,4′-bipyridinium (BIPY)-derived dialdehyde. The new polycationic COF has a honeycomb structure with a pore diameter of about 5.8 nm. Powder X-ray diffraction (PXRD) and small-angle X-ray scattering (SAXS) experiments supported that the 2D layer structures stack into 3D porous frameworks and the adjacent BIPY dications stack in an eclipsed pattern, with chloride counterions being sandwiched in between the layers. PC-COF is highly stable in water, and functions as a robust adsorbent, as demonstrated by its high uptake capacity (>97%) towards a range of anionic organic dye pollutants from water even at a low concentration (3.2 × 10-5 M). Moreover, the adsorbed guests could be released at high recovery rate, such as in the case of methyl orange.",

author = "Yu, {Shang Bo} and Hao Lyu and Jia Tian and Hui Wang and Zhang, {Dan Wei} and Yi Liu and Li, {Zhan Ting}",

year = "2016",

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doi = "10.1039/c6py00281a",

language = "English",

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TY - JOUR

T1 - A polycationic covalent organic framework

T2 - A robust adsorbent for anionic dye pollutants

AU - Yu, Shang Bo

AU - Lyu, Hao

AU - Tian, Jia

AU - Wang, Hui

AU - Zhang, Dan Wei

AU - Liu, Yi

AU - Li, Zhan Ting

PY - 2016/5/28

Y1 - 2016/5/28

N2 - A polycationic two-dimensional (2D) covalent organic framework (PC-COF) has been prepared via the formation of imine bonds from the condensation of a rigid triangular triamine and a 4,4′-bipyridinium (BIPY)-derived dialdehyde. The new polycationic COF has a honeycomb structure with a pore diameter of about 5.8 nm. Powder X-ray diffraction (PXRD) and small-angle X-ray scattering (SAXS) experiments supported that the 2D layer structures stack into 3D porous frameworks and the adjacent BIPY dications stack in an eclipsed pattern, with chloride counterions being sandwiched in between the layers. PC-COF is highly stable in water, and functions as a robust adsorbent, as demonstrated by its high uptake capacity (>97%) towards a range of anionic organic dye pollutants from water even at a low concentration (3.2 × 10-5 M). Moreover, the adsorbed guests could be released at high recovery rate, such as in the case of methyl orange.

AB - A polycationic two-dimensional (2D) covalent organic framework (PC-COF) has been prepared via the formation of imine bonds from the condensation of a rigid triangular triamine and a 4,4′-bipyridinium (BIPY)-derived dialdehyde. The new polycationic COF has a honeycomb structure with a pore diameter of about 5.8 nm. Powder X-ray diffraction (PXRD) and small-angle X-ray scattering (SAXS) experiments supported that the 2D layer structures stack into 3D porous frameworks and the adjacent BIPY dications stack in an eclipsed pattern, with chloride counterions being sandwiched in between the layers. PC-COF is highly stable in water, and functions as a robust adsorbent, as demonstrated by its high uptake capacity (>97%) towards a range of anionic organic dye pollutants from water even at a low concentration (3.2 × 10-5 M). Moreover, the adsorbed guests could be released at high recovery rate, such as in the case of methyl orange.

UR - http://www.scopus.com/inward/record.url?scp=84969922091&partnerID=8YFLogxK

U2 - 10.1039/c6py00281a

DO - 10.1039/c6py00281a

M3 - Article (Academic Journal)

AN - SCOPUS:84969922091

SN - 1759-9954

VL - 7

SP - 3392

EP - 3397

JO - Polymer Chemistry

JF - Polymer Chemistry

IS - 20

ER -

A polycationic covalent organic framework: A robust adsorbent for anionic dye pollutants

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