TY - JOUR
T1 - Selective removal of heavy metal ions by disulfide linked polymer networks
AU - Ko, Dongah
AU - Lee, Joo Sung
AU - Patel, Hasmukh A.
AU - Jakobsen, Mogens H.
AU - Hwang, Yuhoon
AU - Yavuz, Cafer T.
AU - Hansen, Hans Chr Bruun
AU - Andersen, Henrik R.
N1 - Generated from Scopus record by KAUST IRTS on 2021-03-16
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Heavy metal contaminated surface water is one of the oldest pollution problems, which is critical to ecosystems and human health. We devised disulfide linked polymer networks and employed as a sorbent for removing heavy metal ions from contaminated water. Although the polymer network material has a moderate surface area, it demonstrated cadmium removal efficiency equivalent to highly porous activated carbon while it showed 16 times faster sorption kinetics compared to activated carbon, owing to the high affinity of cadmium towards disulfide and thiol functionality in the polymer network. The metal sorption mechanism on polymer network was studied by sorption kinetics, effect of pH, and metal complexation. We observed that the metal ions–copper, cadmium, and zinc showed high binding affinity in polymer network, even in the presence of competing cations like calcium in water.
AB - Heavy metal contaminated surface water is one of the oldest pollution problems, which is critical to ecosystems and human health. We devised disulfide linked polymer networks and employed as a sorbent for removing heavy metal ions from contaminated water. Although the polymer network material has a moderate surface area, it demonstrated cadmium removal efficiency equivalent to highly porous activated carbon while it showed 16 times faster sorption kinetics compared to activated carbon, owing to the high affinity of cadmium towards disulfide and thiol functionality in the polymer network. The metal sorption mechanism on polymer network was studied by sorption kinetics, effect of pH, and metal complexation. We observed that the metal ions–copper, cadmium, and zinc showed high binding affinity in polymer network, even in the presence of competing cations like calcium in water.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0304389417301620
UR - http://www.scopus.com/inward/record.url?scp=85015004113&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2017.03.007
DO - 10.1016/j.jhazmat.2017.03.007
M3 - Article
SN - 1873-3336
VL - 332
SP - 140
EP - 148
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -