摘要:近些年,我国废水排放总量持续增加,其中工业废水约占其总量的百分之四十,并且仍然呈现上升趋势。由于工业废水中铜、汞、镉、铅、六价铬等重金属离子含量很多,这使得解决废水中重金属离子污染问题迫在眉睫。吸附法是一种常用的重金属离子污染物处理技术之一,而硅基介孔材料SBA-15就是性质十分优良的吸附剂。本学位论文通过以P123为模板剂,合成硅基介孔材料SBA-15,再通过2-甲酰基-8-羟基喹啉改性SBA-15得到新的介孔吸附剂S-SBA-15。S-SBA-15不仅在对于Cu(II)的去除方面表现出了较好的吸附性能,而且吸附Cu(II)后得到的Cu-S-SBA-15具备很好的抑菌活性,必将为处理废水中Cu(II)提供新的视角,达到一种材料多种用途,充分利用资源的目标。72502
毕业论文关键词:S-SBA-15;重金属;2-甲酰基-8-羟基喹啉;吸附
Abstract:Recent years,waste water emissions continue to rise in our country,the industrial waste water accounts for about forty percent of its total, and still rise。 Industrial waste water contains heavy metal ions, such as Copper, Mercury, Cadmium, Lead and hexavalent Chromium, which makes solving the problem of heavy metal ions in waste water pollution imminent。 Adsorption method is one of a common solution techniques to heavy metal ions pollution,and silica-based mesoporous material SBA-15 is one kind of adsorption of excellent adsorbent property。 This dissertation is about compounding silica-based mesoporous materials SBA - 15 through by P123 as the template agent。 And synthesize new mesoporous adsorbent S - SBA - 15 by modifying SBA - 15 with 2 - formxyol - 8 - hydroxyquinoline 。 Not only S - SBA - 15 shows good adsorption performance in Cu (II) removal , but also Cu - S - SBA - 15 which synthesized after adsorption of Cu(II) has good antibacterial activity。S - SBA - 15 will certainly provide a new perspective to deal with Cu (II) in waste water,and it will achieve the goal of a variety of material purposes,and making full use of resource at the same time。
Key words: S-SBA-15; Heavy metal ; 2 - formxyol - 8 - hydroxyquinoline,Adsorption
目录
1 引言 3
2 实验部分 4
2。1 实验试剂与药品 4
2。2 测试仪器 4
2。3 材料的合成 5
2。3。1 实验试剂的纯化 5
2。3。2介孔分子筛SBA-15的制备 5
2。3。3 介孔分子筛NH2-SBA-15 的制备 6
2。3。4 介孔分子筛S-SBA-15 的制备 6
2。4 Cu(II)吸附实验和抗菌实验 7
2。4。1 震荡时间对Cu(II)吸附的影响: 7
2。4。2 吸附剂用量对Cu(II)吸附的影响: 8
2。4。3 溶液pH对Cu(II)吸附的影响: 8
2。4。4 震荡温度对Cu(II)吸附的影响: 8
2。4。5 金属离子间竞争吸附实验: 8
2。4。6 抗菌实验: 9
2。5 结果与讨论 9
2。5。1 样品的表征手段 9
2。5。2 结果与讨论 10
2。5。3 样品的吸附性能研究 17
2。5。4 吸附动力学研究