Adsorption of phthalic acid esters (PAEs) by amphiphilic polypropylene nonwoven from aqueous solution: the study of hydrophilic and hydrophobic microdomain.
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.
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
Xiangyu
X
Zhou
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China. Electronic address: weijunfu1963@163.com.
Junfu
J
Wei
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
Huan
H
Zhang
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
Kai
K
Liu
State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
Han
H
Wang
D000327:Adsorption; D000588:Amines / Q000737:chemistry; D003993:Dibutyl Phthalate / Q000737:chemistry*; D004051:Diethylhexyl Phthalate / Q000737:chemistry*; D004852:Epoxy Compounds / Q000737:chemistry; D004952:Esters; D057927:Hydrophobic and Hydrophilic Interactions; D008689:Methacrylates / Q000737:chemistry; D011126:Polypropylenes / Q000737:chemistry*; D012996:Solutions; D013784:Textiles; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods
D000588:Amines; D004852:Epoxy Compounds; D004952:Esters; D008689:Methacrylates; D011126:Polypropylenes; D012996:Solutions; D014874:Water Pollutants, Chemical; D003993:Dibutyl Phthalate; D004051:Diethylhexyl Phthalate; C007870:glycidyl methacrylate; C008699:octylamine
Adsorption; Affinity; Diffusion resistance; Microdomain; Polypropylene; Synergy