| 第 35 卷第 3 期 |  | Vol. 35 No. 3 | | 2005 年 6 月 | Jun 2005 |
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所屬欄目：其它
介孔HMS表面不同基團及孔口改性對固載Salen-Mn的影響 |
| 吳美芝; 伏再輝; 廖慧英(湖南科技職業(yè)學(xué)院; 湖南師范大學(xué)化學(xué)化工學(xué)院; 湖南長(cháng)沙) |
| 摘 要：制備表面含-OH-、NH2-、CHO的三種HMS載體,研究這些載體表面功能團對Salen-Mn配合物的吸附固載作用,用FT-IR,TG-DSC表征配合物與載體表面基團的相互作用,并用配位滴定法測定了Mn的負載量。以E-二苯基乙烯環(huán)氧化反應考察其催化氧化性能和對環(huán)氧化物選擇性的影響。結果表明,含表面-OH的HMS固載Salen-Mn的效果較差,而含表面-NH2,-CHO的HMS對Salen-Mn有較好的固載作用;對固載Salen-Mn的載體孔口改性可進(jìn)一步提高環(huán)氧化物的選擇性并減少Mn的流失。 |
| 關(guān)鍵詞：介孔HMS; Salen-Mn; 固載; 催化氧化; E-二苯乙烯環(huán)氧化 |
| 中圖分類(lèi)號：TQ014 文獻標識碼：A 文章編號：1009-9212(2005)03-0013-04 |
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| Immobilization of Salen-Mn Complex over HMS with diffirent Surface's Groups and Modification of it's Outlet |
| WU Mei-zhi~（1） FU Zai-hui~（2） LIAO Hui-ying~（2）（1.Hunan vocational college of Science & Technology Changsha 410118; China2.China college of Chemistry and Engineering; Hu'nan Normal University; Changsha 410081; China） |
| Abstract：Three hexagonal mesoporous silicas (HMS) with different surface's groups of -OH, -NH_(2), -CHO have been successfully prepared by grafting methods, and used to immobilize Salen Mn complex. The mutual interaction between Salen-Mn complex and the surface's groups of HMS were investigated by FT-IR and TG-DSC characterization technology. Mn loading was determined by coordinated titration. The effect of the surface's groups of HMS on the catalytic activity and selectivity of Salen Mn complex for E-stilbene epoxi... |
| Key words：mesoporous HMS; Salen-Mn complex; immobilization; catalytic oxidation; epoxidation of E-stilbene |
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收稿日期：2005-03-24
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