Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate
Joint Authors
Source
International Journal of Polymer Science
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-03
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A cross-linked starch xanthate was prepared by graft copolymerization of acrylamide and sodium acrylate onto starch xanthate using potassium persulfate and sodium hydrogen sulfite initiating system and N,N′-methylenebisacrylamide as a cross-linker.
As this kind of cross-linked potato starch xanthate can effectively absorb heavy metal ions, it was dispersed in aqueous solutions of divalent heavy metal ions (Pb2+ and Cd2+) to investigate their absorbency by the polymer.
Factors that can influence absorbency were investigated, such as the ratio of matrix to monomers, the amount of initiator and cross-linker, pH, and the concentration of metal ions.
Results were reached and conclusion was drawn that the best synthetic conditions for the polymer adsorbing Pb2+ and Cd2+ were as follows: the quality ratio of matrix to monomers was 1 : 12 and 1 : 11, the amount of initiator was 2.4% and 3.2% of matrix, and the amount of cross-linker was 12 mg and 13 mg.
When the initial concentration of ions was 10 mg/L, the highest quantities of adsorption of Pb2+ and Cd2+ were 47.11 mg/g and 36.55 mg/g.
Adsorption mechanism was discussed by using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), Energy Dispersive X-Ray Spectroscopy (EDS) test, and adsorption kinetic simulation.
American Psychological Association (APA)
Feng, Kai& Wen, Guohua. 2017. Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate. International Journal of Polymer Science،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1169120
Modern Language Association (MLA)
Feng, Kai& Wen, Guohua. Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate. International Journal of Polymer Science No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1169120
American Medical Association (AMA)
Feng, Kai& Wen, Guohua. Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate. International Journal of Polymer Science. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1169120
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169120