摘 要:本论文综述了水环境中重金属污染的危害与处理技术的国内外研究进展。同时,基于有序介孔硅基材料具有均一可调的中孔孔径、稳定的骨架结构、大比表面积及可修饰的内表面的优点,设计并合成了去除效率高的新型介孔吸附材料,并借助红外光谱、扫描电镜等方法对所得各种吸附剂进行了表征研究。76086
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APTES改性SBA-15合成NH2-SBA-15,再通过2,3-二巯基丁二酸(DMSA)对其改性,得到新的介孔材料D-SBA-15。D-SBA-15在对于Hg(II)的去除方面表现出了很好的吸附性能,而且吸附Hg(II)后得到的Hg-D-SBA-15具备很好的抑菌活性,说明新型介孔D-SBA-15对于重金属离子Hg(II)是一种高效的吸附剂。
毕业论文关键词:D-SBA-15;重金属离子;吸附; Hg(II)
Abstract:This thesis discussed the hazardous effect of heavy metal ions in aqueous solution and the development of treatment technologies for heavy metal removal。At the same time, based on the ordered mesoporous silica materials with uniform adjustable diameter of holes, stable skeleton Structure, large specific surface area and can decorate the advantages of the inner surface of the design and synthesis of a series of new high removal efficiency Adsorption type mesoporous material, and with the help of FTIR, TEM and XRD,and other methods to the various adsorbent has carried on the table Drafts research。
This dissertation through by P123 as the template agent, synthesize silica-based mesoporous materials SBA - 15, and synthetic NH2-SBA - 15 by change the performance of SBA - 15, again by change the performance of 2, 3-2 thiol succinic acid (DMSA), get a new mesoporous material D - SBA - 15。 Not only S - SBA - 15 showed excellent adsorption performance in Hg (II) removal , but also Hg - D - SBA - 15 which synthesized after adsorption of Hg (II) has good antibacterial activity。D - SBA - 15 will certainly provide a new perspective to deal with waste water in Hg (II) , new mesoporous adsorbent D - SBA - 15 for Hg (II) ions adsorption of heavy metals is a highly efficient adsorption , and achieve the goal that a material has a variety of purposes, makes full use of resources at the same time。
Keywords:D - SBA - 15; Heavy metal ions; Adsorption; Hg (II)
目录
摘 要 1
Abstract 2
目 录 3
1 前言 5
1。1 有序介孔材料简述 5
1。1。1 有序介孔材料的合成机理 5
1。1。2 介孔材料的应用前景 6
1。1。3 介孔材料的研究展望 7
1。2 介孔分子筛SBA-15的研究进展 7
1。2。1 介孔分子筛的基本特征 7
1。2。2 SBA-15的合成 8
1。2。3 SBA-15的应用 9
1。3 本论文的研究意义及研究内容 9
1。3。1 研究意义 9
1。3。2 主要内容 9
2 D-SBA-15吸附剂的制备及其对废水中Hg(Ⅱ)的吸附性能研究 10
2。1 引言 10
2。2 实验部分 11