功能化介孔材料SBA-16对水中碱性橙染料的去除

Removal of Chrysoidine from Water by Functionalized Mesoporous Material SBA-16

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.

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.