Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 273, Issue -, Pages 61-69Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2014.03.029
Keywords
Microdomain; Polypropylene; Adsorption; Synergy; Affinity; Diffusion resistance
Categories
Funding
- National Natural Science Foundation of China [41301542]
- National High Technology Research and Development Program of China [2013AA065601]
- Key Technologies R & D Program of Tianjin [13ZDSF00100]
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A kind of amphiphilic polypropylene nonwoven with hydrophilic and hydrophobic microdomain was prepared through electron beam induced graft polymerization and subsequent ring opening reaction and then utilized in the adsorption of phthalic acid esters (PAEs). To elucidate the superiority of such amphiphilic microdomain, a unique structure without hydrophilic part was constructed as comparison. In addition, the adsorption behaviors including adsorption kinetics, isotherms and pH effect were systematically investigated. The result indicated that the amphiphilic structure and the synergy between hydrophilic and hydrophobic microdomain could considerably improve the adsorption capacities, rate and affinity. Particularly the existence of hydrophilic microdomain could reduce the diffusion resistance and energy barrier in the adsorption process. These adsorption results showed that the amphiphilic PP nonwoven have the potential to be used in environmental application. (C) 2014 Elsevier B.V. All rights reserved.
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