Amino acid adsorption on mesoporous materials: Influence of types of amino acids, modification of mesoporous materials, and solution conditions
文献类型：期刊论文
| 作者 | Gao, Qiang1,3; Xu, Wujun1,3; Xu, Yao1; Wu, Dong1; Sun, Yuhan1; Deng, Feng2; Shen, Wanling2,3 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2008-02-21 |
| 卷号 | 112期号:7页码:2261-2267 |
| 英文摘要 | In order to disclose the dominant interfacial interaction between amino acids and ordered mesoporous materials, the adsorption behaviors of five amino acids on four mesoporous materials were investigated in aqueous solutions with adjustable amino acid concentration, ion strength, and pH. The selected amino acids were acidic amino acid glutamic acid (Glu), basic amino acid arginine (Arg), and neutral amino acids phenylalanine (Phe), leucine (Leu), and alanine (Ala), and the selected mesoporous materials were SBA-15, Al-SBA-15, CH3(10%)-SBA-15, and CH3(20%)-SBA-15. The adsorption capacities of Glu and Arg were strongly dependent on pH and surface charge of the mesoporous adsorbent. The adsorption of Phe showed pH insensitivity but depended on the surface organic functionalization of mesoporous adsorbent. On the basis of the theoretical analysis about the interaction between amino acid and adsorbent, such a remarkable difference was attributed to the different nature of the interaction between amino acid and adsorbent. Arg could be readily adsorbed on the surface of SBA-15, especially Al-SBA-15, under appropriate pH in which the electrostatic interaction was predominant. The driving force of Phe adsorption on mesoporous adsorbent mainly came from the hydrophobic interaction. Therefore, the adsorption capability of Arg decreased with increasing ion strength of solution, while the adsorption capability of Phe increased with the increasing degree of CH3 functionalization on SBA-15. For neutral amino acid Phe, Ala, and Leu, the adsorption capability increased with the increase of the length of their side chains, which was another evidence of hydrophobic effect. Thus, all the adsorption of amino acids on mesoporous silica materials can be decided by the combined influence of two fundamental interactions: electrostatic attraction and hydrophobic effect. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | MOLECULAR-SIEVES ; SILICA ; ADSORBENTS ; EQUILIBRIUM ; MECHANISMS ; ZEOLITE ; SURFACE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000253222300048 |
| 公开日期 | 2015-10-13 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8113]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Qiang,Xu, Wujun,Xu, Yao,et al. Amino acid adsorption on mesoporous materials: Influence of types of amino acids, modification of mesoporous materials, and solution conditions[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2008,112(7):2261-2267. |
| APA | Gao, Qiang.,Xu, Wujun.,Xu, Yao.,Wu, Dong.,Sun, Yuhan.,...&Shen, Wanling.(2008).Amino acid adsorption on mesoporous materials: Influence of types of amino acids, modification of mesoporous materials, and solution conditions.JOURNAL OF PHYSICAL CHEMISTRY B,112(7),2261-2267. |
| MLA | Gao, Qiang,et al."Amino acid adsorption on mesoporous materials: Influence of types of amino acids, modification of mesoporous materials, and solution conditions".JOURNAL OF PHYSICAL CHEMISTRY B 112.7(2008):2261-2267. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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