Nitrate adsorption using poly(dimethyl diallyl ammonium chloride)/polyacrylamide hydrogel
文献类型：期刊论文
| 作者 | Zheng, Yian1,2; Wang, Aiqin1 |
| 刊名 | Journal of chemical and engineering data
 |
| 出版日期 | 2010-09-01 |
| 卷号 | 55期号:9页码:3494-3500 |
| ISSN号 | 0021-9568 |
| DOI | 10.1021/je100169r |
| 通讯作者 | Wang, aiqin(aqwang@licp.cas.cn) |
| 英文摘要 | In this study, poly(dimethyl diallyl ammonium chloride)/polyacrylamide (pdmdaac/pam), a hydrogel containing quaternary ammonium groups, was prepared and used as the adsorbent to remove the nitrate anion from aqueous solution. the effects of operating conditions, such as pdmdaac content, contact time, ph, initial nitrate concentration, temperature, ion strength, and the presence of the competitive ion phosphate on the adsorption capacities were examined. the langmuir, freundlich, and redlich-peterson isotherms were used to describe the adsorption experimental data. the results indicate that the adsorption equilibrium can be achieved within 60 min, and the hydrogel has an increasing adsorption capacity with increasing pdmdaac content up to 50 % (by weight). as-prepared hydrogel shows an appreciable adsorption capacity within the ph range of 5 to 9, and the calculated maximum adsorption capacity is found to be (1.1 to 1.4) mmol . g(-1). the hydrogel with higher pdmdaac content is sensitive to the changes in the ion strength and competitive anion concentration. effective desorption of nitrate is achieved using strong acid or base as the desorbing agent. it is proposed that two mechanisms are responsible for the higher adsorption capacity: one is swelling, and the other is electrostatic attraction. |
| WOS关键词 | AQUEOUS-SOLUTION ; WASTE-WATER ; REMOVAL ; PHOSPHATE ; CHITOSAN ; IONS ; ELECTRODIALYSIS ; NANOCOMPOSITES ; NITROGEN ; ZEOLITE |
| WOS研究方向 | Chemistry ; Engineering |
| WOS类目 | Chemistry, Multidisciplinary ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000281567000094 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2411194 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Aiqin |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yian,Wang, Aiqin. Nitrate adsorption using poly(dimethyl diallyl ammonium chloride)/polyacrylamide hydrogel[J]. Journal of chemical and engineering data,2010,55(9):3494-3500. |
| APA | Zheng, Yian,&Wang, Aiqin.(2010).Nitrate adsorption using poly(dimethyl diallyl ammonium chloride)/polyacrylamide hydrogel.Journal of chemical and engineering data,55(9),3494-3500. |
| MLA | Zheng, Yian,et al."Nitrate adsorption using poly(dimethyl diallyl ammonium chloride)/polyacrylamide hydrogel".Journal of chemical and engineering data 55.9(2010):3494-3500. |
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来源：中国科学院大学
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