Adsorption of chromium and zinc ions from aqueous solutions by cellulosic graft copolymers |
| |
| Affiliation: | 1. Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934, Alexandria, Egypt;2. Nanomaterials and Composites Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, P.O. Box: 21934, Alexandria, Egypt;3. Chemistry Department, Faculty of Science, Al-Azhar University (Assuit Branch), Egypt;4. Chemistry Department, Faculty of Science, Al-Azhar University, Egypt;5. Egyptian General Petroleum Corporations (EGPC), Egypt;6. Chemistry department, College of Science, King Faisal University, Al-Hassa, Saudi Arabia;1. School of Environmental Sciences, Liaoning University, Shenyang, Liaoning 110036, China;2. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;3. University of Chinese Academy of Sciences, Beijing 100049, China |
| |
| Abstract: | Cellulosic graft copolymers were prepared by the reaction of bast fibers of the kenaf plant (Hibiscus cannabinus) with acrylonitrile and methacrylonitrile monomers in aqueous media initiated by the ceric ion-toluene redox pair. The cellulose-polyacrylonitrile (Cell-PAN) and cellulose-polymethacrylonitrile (Cell-PMAN) graft copolymers were used for the removal of Zn(II) and Cr(III) ions from aqueous solutions at 30°C. Zn(II) ion was more sorbed than Cr(III) ion by both copolymers by an average factor of 1.80 ± 0.40. For each metal ion, the Cell-PAN graft copolymer was a more effective sorbent than the Cell-PMAN derivative. The amount of ion sorbed decreased with an increase in percentage graft and over the range 38–149% of the graft the amounts of Zn(II) and Cr(III) ions sorbed by Cell-PAN decreased by 44% and 56%, respectively. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
