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Synthesis of Flake Type Micro Hollow Silica Using Mg(OH)2 Inorganic Template 원문보기

한국세라믹학회지 = Journal of the Korean Ceramic Society, v.54 no.3, 2017년, pp.222 - 227  

Lee, Ji-Seon (Department of Convergence IT Device and Material Engineering, Korea Polytechnic University) ,  Noh, Kyeong-Jae (Department of Convergence IT Device and Material Engineering, Korea Polytechnic University) ,  Moon, Seong-Cheol (Department of Convergence IT Device and Material Engineering, Korea Polytechnic University) ,  Lee, Young-Chul (Department of Convergence IT Device and Material Engineering, Korea Polytechnic University) ,  Lee, Seong-Eui (Department of Convergence IT Device and Material Engineering, Korea Polytechnic University)

Abstract ▼ AI-Helper 아이콘AI-Helper

Flake-type micro hollow silica was synthesized by precipitation method using an $Mg(OH)_2$ inorganic template and sodium silicate and ammonium sulfate as the silica precursors. We investigated the effects of the silica precursor concentration on the shape, shell thickness, and surface of ...

주제어

#Powders   # $SiO_2$   #Hollow silica   #Inorganic Template   #Core/Shell  

AI 본문요약
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제안 방법

  • The aim of the present study was to synthesize flake type hollow silica using a Mg(OH)2 inorganic template, which allows for convenient removal through acid treatment without using additional heat treatment or organic solvent. Furthermore, the silica precursor concentration was varied as a hollow silica synthesis variable to investigate the resulting hollow silica shape, shell thickness, and surface.
  • A pH meter was used to observe the pH variation according to the reaction time during the silica shell formation reaction, and SEM and TEM analyses were carried out to observe the shape, shell thickness, and surface morphology of the hollow silica according to the precursor concentration. Through an XRD analysis, silica synthesis and crystallinity variation according to the precursor concentration were identified and the oil absorption was measured in order to compare the hollow volume ratio according to the hollow silica shape. The oil absorption was calculated by measuring the maximum paraffin weight absorbable by the hollow silica when minute amounts of liquid paraffin of 25 ~ 35 cst viscosity were dropped on 1 g of the synthesized hollow silica powder and the measured maximum absorbed paraffin weight was divided by the paraffin density (0.

이론/모형

  • In this study, Mg(OH)2 inorganic template particles were used to synthesize hollow silica through a precipitation method.
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참고문헌 (19)

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    상세보기 crossref

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  6. L. Xu, J. Du, Y. Deng, and N. He, "Electrochemical Detection of E. coli O157:H7 Using Porous Pseudo-Carbon Paste Electrode Modified with Carboxylic Multi-Walled Carbon Nanotubes, Glutaraldehyde and 3-Aminopropyltriethoxysilane," J. Biomed. Nanotechnol. 8 [6] 1006-11 (2012). 

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  7. Z. Feng, Y. Li, D. Niu, L. Li, W. Zhao, H. Chen, L. Li, J. Gao, M. Ruan, and J. Shi, "A Facile Route to Hollow Nanospheres of Mesoporous Silica with Tunable Size," Chem. Commun., 44 [23] 2629-31 (2008). 

  8. H. Chen, J. He, H. Tang, and C. Yan, "Porous Silica Nanocapsules and Nanospheres: Dynamic Self-Assembly Synthesis and Application in Controlled Release," Chem. Mater., 20 [18] 5894-900 (2008). 

    상세보기 crossref

  9. B. G. Trewyn, I. I. Slowing, S. Giri, H. T. Chen, and V. S. Y Lin, "Synthesis and Functionalization of a Mesoporous Silica Nanoparticle Based on the Sol-Gel Process and Applications in Controlled Release, Controlled Release," Acc. Chem. Res., 40 [9] 846-53 (2007). 

    상세보기 crossref

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    상세보기 crossref

  11. A. Kentepozidou, C. Kiparissides, F. Kotzia, C. Kollia, and N. Spyrellis, "Nickel/Microcapsules Composite Electrocoatings: the Synthesis of Water-Containing Microcapsules and Preparation of the Coatings," J. Mater. Sci., 31 [5] 1175-81 (1996). 

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    상세보기 crossref

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    원문보기 상세보기 crossref

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    상세보기 crossref

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  18. Y. W. Yoon, Study of Particle Behavior when Silver Nanoparticles Synthesized by Electrical Resistance Analysis, pp. 31-7, in M.S. Thesis, Korea Polytechnic University, Siheung, 2015. 

  19. V. K. LaMer and R. H. Dinegar, "Theory, Production and Mechanism of Formation of Monodispersed Hydrosols," Am. Chem. Soc., 72 [11] 4847-54 (1950). 

    상세보기 crossref

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