TY - GEN
T1 - Thermodynamics of Cr(VI) adsorption on thiourea chelating ion exchange fiber
AU - Jian, Yan Qiang
AU - Li, Ming Yu
AU - Zeng, Qing Xuan
PY - 2014
Y1 - 2014
N2 - A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔG and ΔS, indicate that the adsorption of Cr (VI) is a spontaneous, entropy-driven and endothermic process.
AB - A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔG and ΔS, indicate that the adsorption of Cr (VI) is a spontaneous, entropy-driven and endothermic process.
KW - Hexavalent chromium
KW - Isotherm
KW - Thiourea chelating ion exchange fiber
UR - http://www.scopus.com/inward/record.url?scp=84903365829&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.894.121
DO - 10.4028/www.scientific.net/AMR.894.121
M3 - Conference contribution
AN - SCOPUS:84903365829
SN - 9783038350323
T3 - Advanced Materials Research
SP - 121
EP - 124
BT - Advanced Materials Research IV
T2 - 2014 4th International Conference on Advanced Materials Research, ICAMR 2014
Y2 - 22 January 2014 through 23 January 2014
ER -