Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate
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...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2017/6470306 |
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| author | Kai Feng Guohua Wen |
| author_facet | Kai Feng Guohua Wen |
| author_sort | Kai Feng |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-37c0b773a8ac476b82feee8748636fb0 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-37c0b773a8ac476b82feee8748636fb02025-02-03T01:04:48ZengWileyInternational Journal of Polymer Science1687-94221687-94302017-01-01201710.1155/2017/64703066470306Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch XanthateKai Feng0Guohua Wen1College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaCollege of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaA 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.http://dx.doi.org/10.1155/2017/6470306 |
| spellingShingle | Kai Feng Guohua Wen Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate International Journal of Polymer Science |
| title | Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate |
| title_full | Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate |
| title_fullStr | Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate |
| title_full_unstemmed | Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate |
| title_short | Absorbed Pb2+ and Cd2+ Ions in Water by Cross-Linked Starch Xanthate |
| title_sort | absorbed pb2 and cd2 ions in water by cross linked starch xanthate |
| url | http://dx.doi.org/10.1155/2017/6470306 |
| work_keys_str_mv | AT kaifeng absorbedpb2andcd2ionsinwaterbycrosslinkedstarchxanthate AT guohuawen absorbedpb2andcd2ionsinwaterbycrosslinkedstarchxanthate |