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Synthesis and evaluation of a molecularly imprinted polymer for 2,4-dinitrophenol.

Zakaria ND, Yusof NA, Haron J, Abdullah AH - Int J Mol Sci (2009)

Bottom Line: Molecular imprinted polymers (MIP) are considered one of the most promising selective and novel separation methods for removal phenolic compound in wastewater treatment.MIP are crosslinked polymeric materials that exhibit high binding capacity and selectivity towards a target molecule (template), purposely present during the synthesis process.In this work MIP were prepared in a bulk polymerization method in acetonitrile using 2,4-dinitrophenol, acrylamide, ethylene glycol dimethacrylate, and benzoyl peroxide as template, functional monomer, cross-linker and initiator, respectively.

View Article: PubMed Central - PubMed

Affiliation: Chemistry Department, Faculty of Science, University Putra Malaysia, Serdang, Selangor, Malaysia. myaminx@gmail.com

ABSTRACT
Molecular imprinted polymers (MIP) are considered one of the most promising selective and novel separation methods for removal phenolic compound in wastewater treatment. MIP are crosslinked polymeric materials that exhibit high binding capacity and selectivity towards a target molecule (template), purposely present during the synthesis process. In this work MIP were prepared in a bulk polymerization method in acetonitrile using 2,4-dinitrophenol, acrylamide, ethylene glycol dimethacrylate, and benzoyl peroxide as template, functional monomer, cross-linker and initiator, respectively. An adsorption process for removal of nitrophenol using the fabricated MIP was evaluated under various pH and time conditions. The parameters studied for 2,4-dinitrophenol includes adsorption kinetics, adsorption isotherm, and selectivity. The maximum adsorption of nitrophenol by the fabricated MIP was 3.50 mg/g. The adsorption of 2,4-dinitrophenol by the fabricated MIP was found effective at pH 6.0. A kinetics study showed that nitrophenol adsorption follows a second order adsorption rate and the adsorption isotherm data is explained well by the Langmuir model.

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Adsorption rate of 2,4-dinitrophenol by MIP.
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f5-ijms-10-00354: Adsorption rate of 2,4-dinitrophenol by MIP.

Mentions: The rate of the adsorption of 2,4-dinitrophenol by the MIP was measured as a function of time. The result of this kinetics study is shown in Figure 5. The 2,4-dinitrophenol sorption process was rapid in the initial stage and rather slow when approaching equilibrium. The maximum adsorption occurred after 1 hour at a capacity around 3.50 mg/g.


Synthesis and evaluation of a molecularly imprinted polymer for 2,4-dinitrophenol.

Zakaria ND, Yusof NA, Haron J, Abdullah AH - Int J Mol Sci (2009)

Adsorption rate of 2,4-dinitrophenol by MIP.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2662454&req=5

f5-ijms-10-00354: Adsorption rate of 2,4-dinitrophenol by MIP.
Mentions: The rate of the adsorption of 2,4-dinitrophenol by the MIP was measured as a function of time. The result of this kinetics study is shown in Figure 5. The 2,4-dinitrophenol sorption process was rapid in the initial stage and rather slow when approaching equilibrium. The maximum adsorption occurred after 1 hour at a capacity around 3.50 mg/g.

Bottom Line: Molecular imprinted polymers (MIP) are considered one of the most promising selective and novel separation methods for removal phenolic compound in wastewater treatment.MIP are crosslinked polymeric materials that exhibit high binding capacity and selectivity towards a target molecule (template), purposely present during the synthesis process.In this work MIP were prepared in a bulk polymerization method in acetonitrile using 2,4-dinitrophenol, acrylamide, ethylene glycol dimethacrylate, and benzoyl peroxide as template, functional monomer, cross-linker and initiator, respectively.

View Article: PubMed Central - PubMed

Affiliation: Chemistry Department, Faculty of Science, University Putra Malaysia, Serdang, Selangor, Malaysia. myaminx@gmail.com

ABSTRACT
Molecular imprinted polymers (MIP) are considered one of the most promising selective and novel separation methods for removal phenolic compound in wastewater treatment. MIP are crosslinked polymeric materials that exhibit high binding capacity and selectivity towards a target molecule (template), purposely present during the synthesis process. In this work MIP were prepared in a bulk polymerization method in acetonitrile using 2,4-dinitrophenol, acrylamide, ethylene glycol dimethacrylate, and benzoyl peroxide as template, functional monomer, cross-linker and initiator, respectively. An adsorption process for removal of nitrophenol using the fabricated MIP was evaluated under various pH and time conditions. The parameters studied for 2,4-dinitrophenol includes adsorption kinetics, adsorption isotherm, and selectivity. The maximum adsorption of nitrophenol by the fabricated MIP was 3.50 mg/g. The adsorption of 2,4-dinitrophenol by the fabricated MIP was found effective at pH 6.0. A kinetics study showed that nitrophenol adsorption follows a second order adsorption rate and the adsorption isotherm data is explained well by the Langmuir model.

Show MeSH