Preparation and characterization of surface modified silica nanoparticles with organo-silane compounds

Chang Hun Lee; Sun Hee Park; Wonkeun Chung; Joong Yeon Kim; Sung Hyun Kim

doi:10.1016/j.colsurfa.2011.04.010

Preparation and characterization of surface modified silica nanoparticles with organo-silane compounds

Chang Hun Lee, Sun Hee Park, Wonkeun Chung, Joong Yeon Kim, Sung Hyun Kim

* Honorary professors

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

In this study, surface functionalized silica nanoparticles were prepared through a continuous two-step sol-gel process. After the TEOS-derived silica particles were synthesized, silane compounds were added during the second sol-gel process without any filtration or purification processes. The introductions of the organic chains to their surfaces were measured using ¹³C solid-state NMR. The effects of the hydrophilicity of the organo-chains on the silica particles were evaluated and analyzed by water contact angle and water wettability tests. The differences of surface charge in the dispersion state were analyzed by measuring the zeta-potential and the variations in the charge were measured as a function of pH.

Original language	English
Pages (from-to)	318-322
Number of pages	5
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	384
Issue number	1-3
DOIs	https://doi.org/10.1016/j.colsurfa.2011.04.010
Publication status	Published - 2011 Jul 5

Keywords

Organo-silane compounds
Silica nanoparticles
Surface functionalized silica particles

ASJC Scopus subject areas

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

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10.1016/j.colsurfa.2011.04.010

Cite this

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title = "Preparation and characterization of surface modified silica nanoparticles with organo-silane compounds",

abstract = "In this study, surface functionalized silica nanoparticles were prepared through a continuous two-step sol-gel process. After the TEOS-derived silica particles were synthesized, silane compounds were added during the second sol-gel process without any filtration or purification processes. The introductions of the organic chains to their surfaces were measured using 13C solid-state NMR. The effects of the hydrophilicity of the organo-chains on the silica particles were evaluated and analyzed by water contact angle and water wettability tests. The differences of surface charge in the dispersion state were analyzed by measuring the zeta-potential and the variations in the charge were measured as a function of pH.",

keywords = "Organo-silane compounds, Silica nanoparticles, Surface functionalized silica particles",

author = "Lee, {Chang Hun} and Park, {Sun Hee} and Wonkeun Chung and Kim, {Joong Yeon} and Kim, {Sung Hyun}",

note = "Funding Information: This work was partially supported by the National Research Foundation (NRF) grant (No. 20100027568 ).",

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AU - Lee, Chang Hun

AU - Park, Sun Hee

AU - Chung, Wonkeun

AU - Kim, Joong Yeon

AU - Kim, Sung Hyun

N1 - Funding Information: This work was partially supported by the National Research Foundation (NRF) grant (No. 20100027568 ).

PY - 2011/7/5

Y1 - 2011/7/5

N2 - In this study, surface functionalized silica nanoparticles were prepared through a continuous two-step sol-gel process. After the TEOS-derived silica particles were synthesized, silane compounds were added during the second sol-gel process without any filtration or purification processes. The introductions of the organic chains to their surfaces were measured using 13C solid-state NMR. The effects of the hydrophilicity of the organo-chains on the silica particles were evaluated and analyzed by water contact angle and water wettability tests. The differences of surface charge in the dispersion state were analyzed by measuring the zeta-potential and the variations in the charge were measured as a function of pH.

AB - In this study, surface functionalized silica nanoparticles were prepared through a continuous two-step sol-gel process. After the TEOS-derived silica particles were synthesized, silane compounds were added during the second sol-gel process without any filtration or purification processes. The introductions of the organic chains to their surfaces were measured using 13C solid-state NMR. The effects of the hydrophilicity of the organo-chains on the silica particles were evaluated and analyzed by water contact angle and water wettability tests. The differences of surface charge in the dispersion state were analyzed by measuring the zeta-potential and the variations in the charge were measured as a function of pH.

KW - Organo-silane compounds

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IS - 1-3

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Preparation and characterization of surface modified silica nanoparticles with organo-silane compounds

Abstract

Keywords

ASJC Scopus subject areas

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