| 功能化介孔材料SBA-16对水中碱性橙染料的去除 |
| 摘要点击 2700 全文点击 2068 投稿时间：2009-08-04 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 SBA-16 磺酸基 碱性橙 |
| 英文关键词 SBA-16 sulfonic chrysoidine |
|
| 中文摘要 |
| 通过共浓缩法用正硅酸四乙酯（TEOS）、3-巯丙基三乙氧基硅烷（TMMPS）作为硅源，聚醚F127和十六烷基三甲基溴化铵（CTMABr）作为模板剂合成SBA-16，随后将其磺酸基功能化.合成的材料用粉末X射线衍射、氮气吸附脱附和扫描电镜表征.结果表明，n(TEOS)∶n(TMMPS)为3～8时，合成的材料为介孔材料，当n(TEOS)∶n(TMMPS)为7时，该功能化的介孔材料对碱性橙染料的吸附能力最佳；通过不同的pH值下的实验表明，在pH为4～5时，该功能化的介孔材料的吸附能力最好. |
| 英文摘要 |
| a series of functionalized SBA-16 were synthesized and subsequently oxidized into sulfonic functionalized mesoporous silica mixing tetraethyl orthosilicate (TEOS) and 3-mercaptopropyltriethoxysilane (TMMPS), with triblock copolymers pluronic (F127) and cetyltrimethyl ammonium bromide (CTMABr) served as the mixing template by combination of hydrothermal and co-condensation method. The materials were characterized by X-ray diffraction, nitrogen gas sorption and SEM. The results show that the resulting functional materials belong to mesoporous materials when n(TEOS)∶n(TMMPS) is 3-8. The removal of Chrysoidine from water reaches the highest by functionalized mesoporous material when n(TEOS)∶n(TMMPS) is 7. Compared with different pH values, when the pH value ranges from 4-5 the adsorption reaches the highest. |
