Equilibrium and kinetics studies on adsorption of Cu(II) from aqueous solutions onto a graft copolymer of cross-linked starch/acrylonitrile (CLSAGCP)

Zhang, Yujun; Chen, Jierong; Yan, Xiangyang; Qi, Feng

doi:10.1016/j.jct.2006.11.008

Cited by 19 publications

(15 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among them, many studies have used biopolymers (i.e., chitosan) [10], active carbon [11], zeolites [12], and graft copolymers [13]. In recent years, the use of polymeric microcapsules (MC) synthesized by an in situ radical polymerization method has attracted the attention of some researchers with the aim of applying them to the removal and recovery of heavy metals from aqueous solutions [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

Barassi

Valdés

Araneda

et al. 2009

Journal of Hazardous Materials

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

Barassi

Valdés

Araneda

et al. 2009

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…The negative value of DH 0 confirmed that the sorption reaction of Pb(II) on PHA-OPEFB was exothermic. The decrease in DS 0 is expected, since the Pb(II) sorption on the fiber reduced the randomness of the system (Zhang et al 2007). The free energy, DG 0 values were 227.6, 2 23.4, and 2 20.0 kJ mol 21 at 25, 50, and 708C, respectively, showing that the sorption was spontaneous at all temperatures studied.…”

Section: Thermodynamics Of the Sorptionmentioning

confidence: 91%

Sorption of Pb(II) by poly(hydroxamic acid) grafted oil palm empty fruit bunch

Haron

Tiansin

Ibrahim

et al. 2011

Water Science and Technology

View full text Add to dashboard Cite

This paper describes the sorption of Pb(ll) from aqueous solution. Oil palm empty fruit bunch (OPEFB) fiber was first grafted with poly(methylacrylate) and then treated with hydroxylammonium chloride in alkaline medium to produce hydroxamic acid (PHA) grafted OPEFB. Sorption of Pb(ll) by PHA-OPEFB was maximum at pH 5. The sorption followed the Langmuir model with maximum capacityof 125.0 mg g-1 at 25 degrees C. The sorption process was exothermic, as shown by the negative value of enthalpy change, Delta H0. The free energy change (DeltaG0) for the sorption was negative, showing that the sorption process was spontaneous. A kinetic study showed that the Pb(ll) sorption followed a second order kinetic model.

show abstract

“…ΔH 0 and ΔS 0 are determined from the slope and intercept of the van't Hoff plots of ln K L versus 1/T [21,22].…”

Section: Removal Thermodynamicsmentioning

confidence: 99%

Electrical Removal Behavior of Carbon Nanotube and Carbon Nanofiber Film in CuCl₂Solution: Kinetics and Thermodynamics Study

Zhan

Nie

Pan

et al. 2011

International Journal of Electrochemistry

View full text Add to dashboard Cite

The kinetics, thermodynamics, and isotherms during electrical removal of Cu 2+ by carbon nanotube and carbon nanofiber (CNT-CNF) electrodes in CuCl 2 solution were studied under different solution temperatures, initial Cu 2+ concentrations, and applied voltages. The result shows that Langmuir isotherm can describe experimental data well, indicating monolayer adsorption, and higher Cu 2+ removal and rate constant are achieved at higher voltage, lower initial Cu 2+ concentration, and higher solution temperature. Meanwhile, the thermodynamics analyses indicate that the electrical removal of Cu 2+ onto CNT-CNF electrodes is mainly driven by a physisorption process.

show abstract

Equilibrium and kinetics studies on adsorption of Cu(II) from aqueous solutions onto a graft copolymer of cross-linked starch/acrylonitrile (CLSAGCP)

Cited by 19 publications

References 18 publications

Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

Sorption of Pb(II) by poly(hydroxamic acid) grafted oil palm empty fruit bunch

Electrical Removal Behavior of Carbon Nanotube and Carbon Nanofiber Film in CuCl₂Solution: Kinetics and Thermodynamics Study

Contact Info

Product

Resources

About

Equilibrium and kinetics studies on adsorption of Cu(II) from aqueous solutions onto a graft copolymer of cross-linked starch/acrylonitrile (CLSAGCP)

Cited by 19 publications

References 18 publications

Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

Cr(VI) sorption behavior from aqueous solutions onto polymeric microcapsules containing a long-chain quaternary ammonium salt: Kinetics and thermodynamics analysis

Sorption of Pb(II) by poly(hydroxamic acid) grafted oil palm empty fruit bunch

Electrical Removal Behavior of Carbon Nanotube and Carbon Nanofiber Film in CuCl2Solution: Kinetics and Thermodynamics Study

Contact Info

Product

Resources

About

Electrical Removal Behavior of Carbon Nanotube and Carbon Nanofiber Film in CuCl₂Solution: Kinetics and Thermodynamics Study