TY - JOUR
T1 - Removal of metal ions from aqueous solutions using carboxymethyl cellulose/sodium styrene sulfonate gels prepared by radiation grafting
AU - Tran, Thu Hong
AU - Okabe, Hirotaka
AU - Hidaka, Yoshiki
AU - Hara, Kazuhiro
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers 21656239 , 24360398 . The NMR measurement was performed by Evaluation Center of Materials Properties and Function, Kyushu University. The SEM observation was made using the SEM at the Center of Advanced Instrumental Analysis, Kyushu University.
Publisher Copyright:
© 2016
PY - 2017/2/10
Y1 - 2017/2/10
N2 - Sodium Carboxymethyl Cellulose (CMC[sbnd]Na)/Sodium Styrene Sulfonate (SSS) hydrogels with grafted and crosslinked polymeric networks were prepared by γ-radiation at atmosphere condition. The obtained hydrogels were characterized by gel fraction, swelling ratio, TGA and FTIR spectroscopy. The results showed the ratio of CMC and SSS 1:0 gave the highest gel fraction, compared with other ratios. The swelling capacity increased by increasing SSS content due to the presence of [sbnd]SO3Na, [sbnd]OH groups in gel structure. The FTIR spectrum of CMC/SSS gel showed the new absorption peaks at 1034 and 1012 cm−1 corresponds to [sbnd]SO3Na group. The metal ion adsorption capacity of CMC/SSS gel was investigated. The grafted gel effectively removed metal ions, especially Cr and Pb. The effects of hydrogel composition, contact time, and initial concentration on the adsorption capacity of the grafted hydrogels were studied. The adsorption kinetics and equilibrium isotherms were investigated using pseudo-second-order model and Langmuir model.
AB - Sodium Carboxymethyl Cellulose (CMC[sbnd]Na)/Sodium Styrene Sulfonate (SSS) hydrogels with grafted and crosslinked polymeric networks were prepared by γ-radiation at atmosphere condition. The obtained hydrogels were characterized by gel fraction, swelling ratio, TGA and FTIR spectroscopy. The results showed the ratio of CMC and SSS 1:0 gave the highest gel fraction, compared with other ratios. The swelling capacity increased by increasing SSS content due to the presence of [sbnd]SO3Na, [sbnd]OH groups in gel structure. The FTIR spectrum of CMC/SSS gel showed the new absorption peaks at 1034 and 1012 cm−1 corresponds to [sbnd]SO3Na group. The metal ion adsorption capacity of CMC/SSS gel was investigated. The grafted gel effectively removed metal ions, especially Cr and Pb. The effects of hydrogel composition, contact time, and initial concentration on the adsorption capacity of the grafted hydrogels were studied. The adsorption kinetics and equilibrium isotherms were investigated using pseudo-second-order model and Langmuir model.
UR - http://www.scopus.com/inward/record.url?scp=84990038422&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84990038422&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2016.09.049
DO - 10.1016/j.carbpol.2016.09.049
M3 - Article
C2 - 27987936
AN - SCOPUS:84990038422
SN - 0144-8617
VL - 157
SP - 335
EP - 343
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
ER -