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Controllable synthesis of silica hollow spheres by vesicle templating of silicone surfactants |
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| Authors: | Bo Sun Caiyun Guo Yuan Yao Zhehao Huang Shunai Che |
| Affiliation: | 1. School of Chemistry and Chemical Technology, State Key Laboratory of Metal Matrix Composites, Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People’s Republic of China 2. Petrochina Jilin Petrochemical Company Research Institute, 27 Zunyi East Road, Longtan District, Jilin, 132021, People’s Republic of China |
| Abstract: | Silica hollow spheres (SHSs) have been designed and prepared through three distinct synthetic routes based on the self-assembling of comb-like copolymer silicone surfactants. This process was based on the rule of similarities for hydrophobicity and hydrophilicity between the surfactant and a silica source. The directed silica wall formations were performed at different confined spaces of the vesicles, including the outer and inner surfaces, and the hydrophobic parts of the bi-layers. The resultant SHSs possess tailorable shell thicknesses (20–400 nm), particle sizes (200 nm–1.2 μm), and a high dispersibility in aqueous solutions. |
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