Synthesis and characterization of superparamagnetic poly(urea-formaldehyde) adsorbents and their use for adsorption of flavonoids from Glycyrrhiza uralensis Fisch
文献类型：期刊论文
| 作者 | Zhang, B.1,2; Xing, J. M.1; Liu, H. Z.1 |
| 刊名 | ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 14期号:1页码:65-72 |
| 关键词 | superparamagnetic adsorbent poly(urea-formaldehyde) glycyrrhiza uralensis Fisch flavonoids liquiritin glycyrrhizic acid adsorption desorption |
| ISSN号 | 0929-5607 |
| 其他题名 | Adsorpt.-J. Int. Adsorpt. Soc. |
| 中文摘要 | Superparamagnetic spherical poly(urea-formaldehyde) (PUF) adsorbents were synthesized and their selective adsorption for licorice flavonoids was investigated in this paper. The magnetite (Fe(3)O(4)) nanoparticles were prepared by co-precipitation of ferrous and ferric salts. Then the magnetic adsorbents with PUF shell were synthesized by reversed phase suspension polymerization. The spherical adsorbents have an average diameter of 50 mu m and exhibit superparamagnetic characteristics. The saturation magnetization of the adsorbents was 15.1 emu/g. The sorption and desorption properties of licorice flavonoids on the adsorbents were studied. The result shows that the adsorbents have high adsorption capacity (about 16.7 mg/g (adsorbent)). The adsorption data of flavonoids generally obeys the Langmuir isotherm equation. The adsorption can reach equilibrium rapidly and depends strongly on the pH of the feed solution. The concentration of licorice flavonoids after desorption can reach 25.12% in the desorbed fraction with 75% ethanol solution, which is higher than the 21.9% of commercial macroporous resin XDA-1. HPLC showed that liquiritin, one of main flavonoids in the licorice, was retained in this fraction, while glycyrrhizic acid (GA) can be almost removed from this fraction. |
| 英文摘要 | Superparamagnetic spherical poly(urea-formaldehyde) (PUF) adsorbents were synthesized and their selective adsorption for licorice flavonoids was investigated in this paper. The magnetite (Fe(3)O(4)) nanoparticles were prepared by co-precipitation of ferrous and ferric salts. Then the magnetic adsorbents with PUF shell were synthesized by reversed phase suspension polymerization. The spherical adsorbents have an average diameter of 50 mu m and exhibit superparamagnetic characteristics. The saturation magnetization of the adsorbents was 15.1 emu/g. The sorption and desorption properties of licorice flavonoids on the adsorbents were studied. The result shows that the adsorbents have high adsorption capacity (about 16.7 mg/g (adsorbent)). The adsorption data of flavonoids generally obeys the Langmuir isotherm equation. The adsorption can reach equilibrium rapidly and depends strongly on the pH of the feed solution. The concentration of licorice flavonoids after desorption can reach 25.12% in the desorbed fraction with 75% ethanol solution, which is higher than the 21.9% of commercial macroporous resin XDA-1. HPLC showed that liquiritin, one of main flavonoids in the licorice, was retained in this fraction, while glycyrrhizic acid (GA) can be almost removed from this fraction. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | MAGNETIC NANOPARTICLES ; LICORICE ; PARTICLES ; MICROSPHERES ; CONSTITUENTS ; PURIFICATION ; SEPARATION ; CELLS ; ACID |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000252159600007 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2904]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Lab Separat Sci & Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, B.,Xing, J. M.,Liu, H. Z.. Synthesis and characterization of superparamagnetic poly(urea-formaldehyde) adsorbents and their use for adsorption of flavonoids from Glycyrrhiza uralensis Fisch[J]. ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY,2008,14(1):65-72. |
| APA | Zhang, B.,Xing, J. M.,&Liu, H. Z..(2008).Synthesis and characterization of superparamagnetic poly(urea-formaldehyde) adsorbents and their use for adsorption of flavonoids from Glycyrrhiza uralensis Fisch.ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY,14(1),65-72. |
| MLA | Zhang, B.,et al."Synthesis and characterization of superparamagnetic poly(urea-formaldehyde) adsorbents and their use for adsorption of flavonoids from Glycyrrhiza uralensis Fisch".ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY 14.1(2008):65-72. |
入库方式： OAI收割
来源：过程工程研究所
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