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Adsorptive removal of p-nitrophenol from water with mechano-synthesized porous organic polymers

Abstract

In this work, we demonstrated a successful synthesis of porous organic polymers via a ball-milling procedure. Several readily available benzene derivatives were selected to be polymerized through a Friedel-Crafts reaction with FeCl3 as Lewis acid catalyst and formaldehyde dimethyl acetal as a crosslinker. All the mechano-synthesized porous organic polymers (MPOPs) are not soluble in common organic solvents, and the calculated surface area was over 500 m2/g when biphenyl was used as the monomer. One of the advantages of applying ball-milling in targeted polymer synthesis is bypassing the large quantity of hazardous chlorinated solvents which are commonly used in traditional Friedel-Crafts reactions. Considering the aromatic skeleton and hydrophobic nature of these polymers, their performances in p-nitrophenol (PNP) adsorption from water was investigated. The quantification was carried out on an Ionic 3Q 320 LC-MS/MS system with 4-nitrocatechol (PNC) as an internal standard. MPOP-1 and MPOP-3 showed maximum adsorption capacity of 133.10 and 155.51 mg/g for PNP, respectively. The adsorption kinetics were studied and both adsorption isotherms were well delineated with a pseudo-second-order equation, indicating the availability of strong adsorption sites in both MPOPs for interacting with PNP.

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Publication details

The article was received on 09 Sep 2018, accepted on 09 Nov 2018 and first published on 09 Nov 2018


Article type: Paper
DOI: 10.1039/C8NJ04575E
Citation: New J. Chem., 2018, Accepted Manuscript
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    Adsorptive removal of p-nitrophenol from water with mechano-synthesized porous organic polymers

    H. Zeng, W. Lu, L. Hao, G. Helms, Q. ZHANG and Z. Luo, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ04575E

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