TY - JOUR
T1 - Covalent Triazine Polymer-Fe3O4 Nanocomposite for Strontium Ion Removal from Seawater
AU - Rengaraj, Arunkumar
AU - Haldorai, Yuvaraj
AU - Puthiaraj, Pillaiyar
AU - Hwang, Seung Kyu
AU - Ryu, Taegong
AU - Shin, Junho
AU - Han, Young Kyu
AU - Ahn, Wha Seung
AU - Huh, Yun Suk
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/5/3
Y1 - 2017/5/3
N2 - A microporous covalent triazine polymer (CTP) is synthesized via a Friedel-Crafts reaction and used as a solid support to immobilize magnetite Fe3O4 nanoparticles. Thermogravimetric analysis shows that approximately 60 wt % Fe3O4 is loaded onto the composite, and transmission electron microscopy analysis illustrates that the Fe3O4 nanoparticles are uniformly impregnated into the CTP surface. The CTP-Fe3O4 nanocomposite is an efficient adsorbent for the removal of strontium ion (Sr2+) from seawater. Response surface methodology, employed to optimize the removal of Sr2+, confirms that the optimal conditions for this removal are 0.55 mg, pH 7, 40 °C, and 250 min. The experimental results illustrate that the adsorption process fits well with the Freundlich isotherm, with a correlation coefficient of 0.976 and a maximum adsorption capacity of 128 mg g-1. The kinetic study demonstrates that the adsorption behavior follows pseudo-second-order kinetics. The adsorbent is easily recovered from seawater using an external magnetic field, thereby offering facile and economic separation of the adsorbent.
AB - A microporous covalent triazine polymer (CTP) is synthesized via a Friedel-Crafts reaction and used as a solid support to immobilize magnetite Fe3O4 nanoparticles. Thermogravimetric analysis shows that approximately 60 wt % Fe3O4 is loaded onto the composite, and transmission electron microscopy analysis illustrates that the Fe3O4 nanoparticles are uniformly impregnated into the CTP surface. The CTP-Fe3O4 nanocomposite is an efficient adsorbent for the removal of strontium ion (Sr2+) from seawater. Response surface methodology, employed to optimize the removal of Sr2+, confirms that the optimal conditions for this removal are 0.55 mg, pH 7, 40 °C, and 250 min. The experimental results illustrate that the adsorption process fits well with the Freundlich isotherm, with a correlation coefficient of 0.976 and a maximum adsorption capacity of 128 mg g-1. The kinetic study demonstrates that the adsorption behavior follows pseudo-second-order kinetics. The adsorbent is easily recovered from seawater using an external magnetic field, thereby offering facile and economic separation of the adsorbent.
UR - http://www.scopus.com/inward/record.url?scp=85020695623&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.7b00052
DO - 10.1021/acs.iecr.7b00052
M3 - Article
AN - SCOPUS:85020695623
SN - 0888-5885
VL - 56
SP - 4984
EP - 4992
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
IS - 17
ER -