Lei Pan, Yi Wang, Hong-bo Xu, Yan-bo Ding, Yao Li, Jiu-peng Zhao. Synthesis of Silica Particles with Precisely Tailored Diameter[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 563-567. doi: 10.1063/1674-0068/27/05/563-567
Citation: Lei Pan, Yi Wang, Hong-bo Xu, Yan-bo Ding, Yao Li, Jiu-peng Zhao. Synthesis of Silica Particles with Precisely Tailored Diameter[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 563-567. doi: 10.1063/1674-0068/27/05/563-567

Synthesis of Silica Particles with Precisely Tailored Diameter

doi: 10.1063/1674-0068/27/05/563-567
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.51010005, No.91216123, No.51174063), the Program for New Century ExcellentTalents in University (No.NCET-08-0168), the Natural Science Funds for Distinguished Young Scholar of Hei-longjiang Province, and the Project of International Co-operation supported by Ministry of Science and Tech-nology of China.
  • Received Date: 2014-04-24
  • A modified seeded growth process of silica particles with a continuous addition of tetraethyl orthosilicate (TEOS) was presented to control the diameter of silica particles. The diameter of particles was monitored by dynamic light scattering to control the addition of TEOS. The increase in the diameter of the silica particles with time and the addition of TEOS was investigated. The diameter of silica seeds increased from 193 nm to 446 nm in 4 h. The final diameter of silica particles was tailored within the range of ±5 nm to the target diameter. Silica particles with diameter of 446 nm were synthesized and assembled into photonic crystals with a pseudo band gap centered at just 1000 nm. The feasibility and practicability of this modified seeded growth process was verified.
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Synthesis of Silica Particles with Precisely Tailored Diameter

doi: 10.1063/1674-0068/27/05/563-567
Funds:  This work was supported by the National Natural Sci-ence Foundation of China (No.51010005, No.91216123, No.51174063), the Program for New Century ExcellentTalents in University (No.NCET-08-0168), the Natural Science Funds for Distinguished Young Scholar of Hei-longjiang Province, and the Project of International Co-operation supported by Ministry of Science and Tech-nology of China.

Abstract: A modified seeded growth process of silica particles with a continuous addition of tetraethyl orthosilicate (TEOS) was presented to control the diameter of silica particles. The diameter of particles was monitored by dynamic light scattering to control the addition of TEOS. The increase in the diameter of the silica particles with time and the addition of TEOS was investigated. The diameter of silica seeds increased from 193 nm to 446 nm in 4 h. The final diameter of silica particles was tailored within the range of ±5 nm to the target diameter. Silica particles with diameter of 446 nm were synthesized and assembled into photonic crystals with a pseudo band gap centered at just 1000 nm. The feasibility and practicability of this modified seeded growth process was verified.

Lei Pan, Yi Wang, Hong-bo Xu, Yan-bo Ding, Yao Li, Jiu-peng Zhao. Synthesis of Silica Particles with Precisely Tailored Diameter[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 563-567. doi: 10.1063/1674-0068/27/05/563-567
Citation: Lei Pan, Yi Wang, Hong-bo Xu, Yan-bo Ding, Yao Li, Jiu-peng Zhao. Synthesis of Silica Particles with Precisely Tailored Diameter[J]. Chinese Journal of Chemical Physics , 2014, 27(5): 563-567. doi: 10.1063/1674-0068/27/05/563-567

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