Dual Roles of Polymeric Capping Ligands in the Surface-Protected Etching of Colloidal SilicaClick to copy article linkArticle link copied!
- Ji FengJi FengDepartment of Chemistry, University of California, Riverside, Riverside, California 92521, United StatesMore by Ji Feng
- Fan YangFan YangDepartment of Chemistry, University of California, Riverside, Riverside, California 92521, United StatesMore by Fan Yang
- Guoxiang HuGuoxiang HuDepartment of Chemistry, University of California, Riverside, Riverside, California 92521, United StatesCenter for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United StatesMore by Guoxiang Hu
- Tatiana V. BrinzariTatiana V. BrinzariColgate-Palmolive Company, Piscataway, New Jersey 08854, United StatesMore by Tatiana V. Brinzari
- Zuyang YeZuyang YeDepartment of Chemistry, University of California, Riverside, Riverside, California 92521, United StatesMore by Zuyang Ye
- Jinxing ChenJinxing ChenDepartment of Chemistry, University of California, Riverside, Riverside, California 92521, United StatesMore by Jinxing Chen
- Saide Tang
- Shiyou Xu
- Viktor DubovoyViktor DubovoyColgate-Palmolive Company, Piscataway, New Jersey 08854, United StatesMore by Viktor Dubovoy
- Long Pan*Long Pan*Email: [email protected]Colgate-Palmolive Company, Piscataway, New Jersey 08854, United StatesMore by Long Pan
- Yadong Yin*Yadong Yin*Email: [email protected]Department of Chemistry, University of California, Riverside, Riverside, California 92521, United StatesMore by Yadong Yin
Abstract
In this work, we reveal the dual roles of polymeric capping ligands in the hollowing of silica nanospheres during their surface-protected etching. We first show that polymeric capping ligands, if they have a stronger interaction with the surface Si–OH groups than water, can reduce the condensation of the silica network, allowing the diffusion of OH– ions through the shell to dissolve the inner silica. Also, the polymeric ligands can passivate the surface silica, making it less likely to be dissolved by OH– ions. The combination of these two roles ensures highly selective etching of the interior of the colloidal silica spheres, making the surface-protected etching a robust process for the synthesis of hollow silica nanoshells. Our insight into the specific roles of the ligands is expected to elucidate the impact of polymeric ligands on the colloidal chemistry of silica, particularly in its condensation and etching behaviors, and offer new opportunities in the design of silica and other oxide-based nanostructures.
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This article is cited by 4 publications.
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https://doi.org/10.1093/mam/ozae044.899
- Yanqiu Zhang, Yuqing Mei, Shouchun Ma, Yang Yang, Xianhe Deng, Yina Guan, Tingting Zhao, Baojiang Jiang, Tongjie Yao, Qingfeng Yang, Jie Wu. A simple and green method to prepare non-typical yolk/shell nanoreactor with dual-shells and multiple-cores: Enhanced catalytic activity and stability in Fenton-like reaction. Journal of Hazardous Materials 2022, 436 , 129234. https://doi.org/10.1016/j.jhazmat.2022.129234
- Tian Hao, Yao Wang, Zhipeng Liu, Jie Li, Liangang Shan, Wenchao Wang, Jixian Liu, Jianguo Tang. Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites. Nanomaterials 2021, 11
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