锑酸钡制备及应用

摘要:本论文实验通过改进常规锑酸盐的合成方法和路线，以三氯化锑和碳酸钠、碳酸钡为反应物，使用高温固相法，最终得到了产率高和纯净的锑酸钡，并以此改进的方法合成了系列锑酸稀土盐的复合物，通过对产物的紫外漫反射(DRS)和X射线固体粉末线衍射(XRD)的检测结果分析，得出锑酸钡及锑酸稀土盐具有相同的结构。将锑酸钡和锑酸稀土盐粉末固体做三种同分异构硝基苯酚和甲基橙的催化降解实验，结果显示锑酸钡复合物及锑酸稀土盐均有很好的催化降解活性，降解率可达到90 %以上，且性质稳定可多次使用。实验还研究了锑酸稀土盐中锑元素和稀土元素的不同摩尔质量比对于锑酸稀土盐有机降解活性的影响，得出的结果显示锑离子和稀土离子随着稀土元素的摩尔质量的增加使锑酸稀土盐的催化降解活性先增加后减小甚至消失。82009

毕业论文关键词：锑酸钡；稀土锑酸盐；锑酸盐；有机降解

Antimony acid barium compound preparation and application

Abstract: In this paper, we finally get high yield and pure antimony acid barium in the experiment by improving the synthesis method and route of conventional antimonate with antimony trichloride, sodium carbonate, barium carbonate for reactants, and high temperature solid phase method。。 We use the above method to prepare series of antimony acid complexes antmony acid barium ard antimony acid rare earth salt have the same structure by the analysis of UV-VIS (DRS) and X shoots the solid powder X-ray diffraction (XRD)。 When acid barium and antimony acid rare earth salt powder solids were used for catalytic degradation experiment with three points heterogeneous nitro phenol and methyl orange, the results show that the acid barium compounds and antimony acid rare earth salt have good catalytic degradation activity, and the degradation rate can reach more than 90 %, and the sanpled have stable properties。 The experiment also studied how the antimony elements and rare earth elements in rare earth salt acid of different molecular weight ratios influence rare earth salt organic degradation activity of antimony acid, and the results show that with the increase of the molar mass of rare earth elements, antimony ions and lanthanide ions make antimony acid catalytic degradation activity of rare earth salt first increased, txen reduced, then reduced, finally even disappear。

Key Words: Antimony acid barium; Rare earth antimonite; Antimonite; The organic degradation。

摘要 1

引言 2

1。实验部分 3

1。1实验仪器与试剂 3

1。2实验方法 4

1。4锑酸钡制备流程 7

1。5锑酸稀土盐的制备 5

1。6催化性质的测量 6

2。结果与讨论 6

2。1 X-射线衍射测定（XRD) 6

2。2 紫外-可见漫反射光谱(UV-vis DRS) 7

2。3 复合材料的形貌及表征 7

2。4锑酸稀土盐对三种硝基苯酚的催化性能研究 9

2。5 锑酸稀土盐紫外-可见光漫反射光谱分析 11

3 。结论 12

参考文献 13