Evaluation of porogen factors for the preparation of ion imprinted polymer monoliths used in mercury removal

Autor: Siti Khadijah Ab. Rahman, Azni Idris, Hamad A. Al-Lohedan, Abdul Halim Abdullah, Nor Azah Yusof, Faruq Mohammad
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Polymers
lcsh:Medicine
02 engineering and technology
01 natural sciences
Physical Chemistry
Polymerization
Molecular Imprinting
chemistry.chemical_compound
lcsh:Science
chemistry.chemical_classification
Multidisciplinary
Aqueous solution
Organic Compounds
Chemical Reactions
Polymer
021001 nanoscience & nanotechnology
Solutions
Chemistry
Macromolecules
Physical Sciences
Sorption
Environmental Pollutants
0210 nano-technology
Molecular imprinting
Porosity
Research Article
Chemical Elements
Mercury (Element)
Materials by Structure
Materials Science
Material Properties
Aqueous Solutions
Permeability
Adsorption
Nitriles
Acetonitrile
Polypropylene
lcsh:R
010401 analytical chemistry
Organic Chemistry
Chemical Compounds
Correction
Mercury
Polymer Chemistry
0104 chemical sciences
chemistry
Methacrylic acid
Mixtures
lcsh:Q
Ethylene glycol
Nuclear chemistry
Zdroj: PLoS ONE
PLoS ONE, Vol 13, Iss 4, p e0195546 (2018)
ISSN: 1932-6203
Popis: In the present study, ion imprinted polymer monoliths (IIPMs) were developed to overcome the limitations of ion imprinted polymer particles (IIPPs) used for the removal of Hg(II) ions from waste water samples. The adsorbents preparation, characterization and Hg(II) removal were very well reported. The IIPMs on porogen optimization was prepared using the molding technique with Hg(II) as a template ion, [2-(methacryloyloxy)ethyl]trimethylammonium cysteine (MAETC) as ligand, methacrylic acid (MAA) as functional monomer, ethylene glycol dimethacrylamide (EGDMA) as cross-linker, benzoyl peroxide as an initiator and methanol and acetonitrile as porogen in the polypropylene tube (drinking straw) as mold. The IIPMs prepared with higher volumes of porogen were indicated to have a good adsorption rate for the Hg(II) removal along with good water permeability and larger porosity as compared to a lower volume of porogen. The IIPMs prepared using the binary porogen were able to improve the porosity and surface area of the monolithic polymers as compared to the single porogen added IIPMs. Finally, we indicate from our analysis that the IIPM having the efficient capacity for the Hg(II) ions is easy to prepare, and has higher water permeability along with high porosity and high adsorption capacity and all these factors making it one of the suitable adsorbent for the successful removal of Hg(II) ions.
Databáze: OpenAIRE
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