TY - JOUR
T1 - Iron-based redox polymerization of acrylic acid for direct synthesis of hydrogel/membranes and metal nanoparticles for water treatment
AU - Hernández, Sebastián
AU - Papp, Joseph K.
AU - Bhattacharyya, Dibakar
PY - 2014/1/22
Y1 - 2014/1/22
N2 - Functionalized polymer materials with ion-exchange groups and the integration of nanostructured materials is an emerging area for catalytic and water pollution control applications. The polymerization of materials such as acrylic acid often requires persulfate initiator and a high-temperature start. However, is generally known that metal ions accelerate such polymerizations starting from room temperature. If the metal is properly selected, then it can be used in environmental applications, adding two advantages simultaneously. This article deals with this by polymerizing acrylic acid using iron as an accelerant and subsequently using it for nanoparticle synthesis in hydrogels and PVDF membranes. Characterizations of hydrogels, membranes, and nanoparticles were carried out with different techniques. Nanoparticles sizes of 30-60 nm were synthesized. Permeability and swelling measurements demonstrate an inverse relationship between the hydrogel mesh size (6.30 to 8.34 nm) and the membrane pore size (222 to 110 nm). The quantitative reduction of trichloroethylene/ chloride generation by Fe/Pd nanoparticles in hydrogel/membrane platforms was also performed.
AB - Functionalized polymer materials with ion-exchange groups and the integration of nanostructured materials is an emerging area for catalytic and water pollution control applications. The polymerization of materials such as acrylic acid often requires persulfate initiator and a high-temperature start. However, is generally known that metal ions accelerate such polymerizations starting from room temperature. If the metal is properly selected, then it can be used in environmental applications, adding two advantages simultaneously. This article deals with this by polymerizing acrylic acid using iron as an accelerant and subsequently using it for nanoparticle synthesis in hydrogels and PVDF membranes. Characterizations of hydrogels, membranes, and nanoparticles were carried out with different techniques. Nanoparticles sizes of 30-60 nm were synthesized. Permeability and swelling measurements demonstrate an inverse relationship between the hydrogel mesh size (6.30 to 8.34 nm) and the membrane pore size (222 to 110 nm). The quantitative reduction of trichloroethylene/ chloride generation by Fe/Pd nanoparticles in hydrogel/membrane platforms was also performed.
UR - http://www.scopus.com/inward/record.url?scp=84892971650&partnerID=8YFLogxK
U2 - 10.1021/ie403353g
DO - 10.1021/ie403353g
M3 - Article
C2 - 24954975
AN - SCOPUS:84892971650
SN - 0888-5885
VL - 53
SP - 1130
EP - 1142
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
IS - 3
ER -