本實驗大致可分為三部份，第一部分是聚丙烯酸為模板，加入TEOS，製備二氧化矽中空球。第二部份是利用聚丙烯酸與孔洞生成劑為模板，加入TEOS，製備多孔二氧化矽中空球。第三部份則是以二氧化矽中空球為模板，加入鐵、分散劑、阻隔劑，製備磁性複合中空球。在此實驗中，分別討論改變聚丙烯酸的含量，來控制中空球的粒徑；改變孔洞生成劑的含量來控制中空球殼層的孔隙度；改變分散劑、阻隔劑與保護層的含量，來控制複合中空球的表面型態與結構。
在製備中空球的部份，分別使用0.05 g、0.065 g與0.08 g的聚丙烯酸所形成之模板，製備出的二氧化矽中空球之粒徑分別為150±50 nm、220±50 nm與300±50 nm。
在製備多孔中空球部份，分別使用0 ml、3.12 ml與8 ml的孔洞生成劑與聚丙烯酸為模板，製備出多孔二氧化矽中空球。由實驗結果可發現，以孔洞生成劑生成模板，所製備的中空球，並不會使其表面積明顯的增加，但平均孔徑會比沒有加入正十二烷之中空球由10 nm增大到20 nm。
在製備磁性複合中空球部份，主要是探討分散劑、阻隔劑與TEOS保護劑對於磁性複合中空球之表面與微結構的影響。在製程方面，大致可分為兩部份，第一部所得的產物，表面毛茸茸且表面積大；第二部份所製備出磁性複合中空球，表面較為平整，由此可說明，利用第二種方法所得的磁性複合中空球，其粒徑較小，因此表面較平整。並可以藉由加入分散劑，將其結構轉變為覆盆梅結構，因此可以利用一些添加劑來改變複合中空球的表面形態。

This study is divided into three parts. The first part is to use poly (acrylic acid) as a template, and then to add TEOS to prepare a SiO2 hollow sphere. The second part is to use poly(acrylic acid) and pore former as a template, and then to add TEOS to prepare a porous SiO2 hollow sphere. The third part is to use SiO2 hollow sphere as a template, and then add iron, a dispersant, and a blocking agent to prepare a magnetic hybrid hollow sphere. In this study, we investigate the effects of the poly(acrylic acid) content on the size of hollow sphere, the pore former content on the porosity of hollow sphere, and the contents of dispersant, blocking agent, and TEOS on the surface morphology and the structure of hybrid hollow spheres.
0.05, 0.065 and 0.08g of poly(acrylic acid) were used as a template to prepare SiO2 hollow spheres of 150±50 nm, 220±50 nm and 300±50 nm, respectively.
0, 3.12 and 8 ml of pore former and 0.8g of poly(acrylic acid) were used to prepare porous SiO2 hollow sphere. From the experimental results, it was found that the specific surface area of the porous hollow spheres did not increase with the addition of pore former but its pore size increased from 10 nm to 20 nm.
The effects of dispersant, blocking agent, and protective agent on the surface smoothness and the microstructure of magnetic hybrid hollow spheres had been discussed. For preparing the functional hollow spheres, it can be divided into two parts. In the first part, Fe particles were deposited on and into the hollow sphere. This process produced the magnetic hollow spheres with a rough surface and a high surface area. In the second part, Fe particles were also deposited on and into the hollow sphere. Through this approach, the magnetic hollow spheres had a smooth surface and were free of the un-wanted Fe aggregates attached to the hollow spheres. If surfactant was added into this emulsion solution, magnetic hybrid hollow spheres with a raspberry structure were obtained. With chemical modification, the morphology of the magnetic Fe nanoparticles can be adjusted.

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