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A platform for research: civil engineering, architecture and urbanism
Removal of Copper Ions From Water Using Epichlorohydrin Cross‐Linked β‐Cyclodextrin Polymer: Characterization, Isotherms and Kinetics
β‐cyclodextrin (β‐CD) cross‐linked with epichlorohydrin to form water insoluble β‐cyclodextrin polymer (β‐CDP) has been shown to be an effective sorbent for sorption of organic particles, but the sorption of copper (Cu2+) in aqueous solutions by β‐CDP has not been conducted. The objective of this study was to explore the sorption mechanism of β‐CDP for copper. The effects of different experimental conditions such as pH, ionic strength, contact time, and temperature were inspected using a batch method. In addition, binding scheme was estimated by using Fourier transform infrared (FTIR) spectroscopy, X‐ray photoelectron spectroscopy (XPS), a scanning electron microscope (SEM), and Brunauer‐Emmett‐Teller (BET) analysis. The adsorption of Cu2+ was observed to be higher at pH 6.0. The kinetic study revealed that the adsorption is fitted well by the pseudo‐second‐order kinetic model. The maximum binding of Cu2+ was estimated to be 111.11 mg/g through the Langmuir isotherm model — much higher than the existing sorption technologies. Hence, the adsorption‐desorption trends of epichlorohydrin cross‐linked with β‐CD, along with its good recyclability, establish an alternative, effective, and novel remediation technology for the removal of Cu2+ from aqueous solutions.
Removal of Copper Ions From Water Using Epichlorohydrin Cross‐Linked β‐Cyclodextrin Polymer: Characterization, Isotherms and Kinetics
β‐cyclodextrin (β‐CD) cross‐linked with epichlorohydrin to form water insoluble β‐cyclodextrin polymer (β‐CDP) has been shown to be an effective sorbent for sorption of organic particles, but the sorption of copper (Cu2+) in aqueous solutions by β‐CDP has not been conducted. The objective of this study was to explore the sorption mechanism of β‐CDP for copper. The effects of different experimental conditions such as pH, ionic strength, contact time, and temperature were inspected using a batch method. In addition, binding scheme was estimated by using Fourier transform infrared (FTIR) spectroscopy, X‐ray photoelectron spectroscopy (XPS), a scanning electron microscope (SEM), and Brunauer‐Emmett‐Teller (BET) analysis. The adsorption of Cu2+ was observed to be higher at pH 6.0. The kinetic study revealed that the adsorption is fitted well by the pseudo‐second‐order kinetic model. The maximum binding of Cu2+ was estimated to be 111.11 mg/g through the Langmuir isotherm model — much higher than the existing sorption technologies. Hence, the adsorption‐desorption trends of epichlorohydrin cross‐linked with β‐CD, along with its good recyclability, establish an alternative, effective, and novel remediation technology for the removal of Cu2+ from aqueous solutions.
Removal of Copper Ions From Water Using Epichlorohydrin Cross‐Linked β‐Cyclodextrin Polymer: Characterization, Isotherms and Kinetics
Sikder, M. Tajuddin (author) / Islam, Md Shariful (author) / Kikuchi, Tohru (author) / Suzuki, Junichi (author) / Saito, Takeshi (author) / Kurasaki, Masaaki (author)
Water Environment Research ; 86 ; 296-304
2014-04-01
9 pages
Article (Journal)
Electronic Resource
English
The Adsorption of Copper Ions Using Cyclodextrin Cross-Linked Magnetic Chitosan Microsphere
| British Library Conference Proceedings | 2012