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| 论文编号: |
122214O120110073 |
| 第一作者所在部门: |
610组 |
| 中文论文题目: |
介孔SBA-15表面氨基嫁接对重金属离子吸附的影响
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| 英文论文题目: |
Effective NH2-grafting on mesoporous SBA-15 surface for adsorption of heavy metal ions
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| 论文题目英文: |
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| 作者: |
徐耀
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| 论文出处: |
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| 刊物名称: |
MATERIALS LETTERS
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| 年: |
2011
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| 卷: |
65 |
| 期: |
6 |
| 页: |
1045 |
| 联系作者: |
徐耀 |
| 收录类别: |
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| 影响因子: |
2.120
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| 摘要: |
Utilizing the reactions between toluene diisocyanate (TDI), silanol, and ethylenediamine (EDA), NH2 groups were successfully grafted on mesoporous SBA-15 surface without any destroy to the mesostructure. TDI was employed as a ‘bridge’ molecule whose one NCO group was used to link SBA-15 surface silanols and the other one was left to link EDA. Such NH2-grafting is highly effective for a high loading amount of NH2 groups on SBA-15 because the special stepwise grafting can avoid amino/silanol and amino/amino interactions. Subjected to remove toxic heavy metal ions in aqueous solution, the obtained NH2-SBA-15 showed very high adsorption rates 99.4%, 100%, 99.7%, 98.7% and 99.9% for Cu2+, Zn2+, Cr3+, Ni2+ and Cd2+, respectively, which should be attributed to the strong complexation reactions between metal ions and grafted NH2 groups. |
| 英文摘要: |
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| 外单位作者单位: |
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| 备注: |
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