Effects of surface-active substances on acid-base indicator reactivity in SiO2 gels

Zhijian Wu; Kangtaek Lee; Yanxin Lin; Xinren Lan; Liyao Huang

doi:10.1016/S0022-3093(03)00025-5

Effects of surface-active substances on acid-base indicator reactivity in SiO₂ gels

Zhijian Wu, Kangtaek Lee, Yanxin Lin, Xinren Lan, Liyao Huang

Department of Chemical and Biomolecular Engineering

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

5 Citations (Scopus)

Abstract

Methyl orange (MO) and phenolphthalein (P) doped SiO₂ gels derived from tetraethyl orthosilicate (TEOS) and modified with cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and stearic acid (SA) are prepared. FTIR and TG analyses are used to characterize the gels. The color changes and leaching behavior of MO and P within the gels are investigated and explained on the basis of the gel structures and the reaction mechanism. The experimental results show that surface-active substances have obvious effects on the acid-base response and the leaching behavior of the acid-base indicators within the SiO₂ gels.

Original language	English
Pages (from-to)	168-176
Number of pages	9
Journal	Journal of Non-Crystalline Solids
Volume	320
Issue number	1-3
DOIs	https://doi.org/10.1016/S0022-3093(03)00025-5
Publication status	Published - 2003 Jun 1

Bibliographical note

Funding Information:
The authors thank the financial assistance from Research Foundation of Overseas Chinese Affairs Office, State Council, P.R. China, and Fujian Provincial Science and Technology Creation Foundation for Young Researcher (2001J023), P.R. China. Z.W. thanks the postdoctoral fellowship from Yonsei NT center at Yonsei University, Korea.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/S0022-3093(03)00025-5

Cite this

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title = "Effects of surface-active substances on acid-base indicator reactivity in SiO2 gels",

abstract = "Methyl orange (MO) and phenolphthalein (P) doped SiO2 gels derived from tetraethyl orthosilicate (TEOS) and modified with cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and stearic acid (SA) are prepared. FTIR and TG analyses are used to characterize the gels. The color changes and leaching behavior of MO and P within the gels are investigated and explained on the basis of the gel structures and the reaction mechanism. The experimental results show that surface-active substances have obvious effects on the acid-base response and the leaching behavior of the acid-base indicators within the SiO2 gels.",

author = "Zhijian Wu and Kangtaek Lee and Yanxin Lin and Xinren Lan and Liyao Huang",

note = "Funding Information: The authors thank the financial assistance from Research Foundation of Overseas Chinese Affairs Office, State Council, P.R. China, and Fujian Provincial Science and Technology Creation Foundation for Young Researcher (2001J023), P.R. China. Z.W. thanks the postdoctoral fellowship from Yonsei NT center at Yonsei University, Korea.",

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T1 - Effects of surface-active substances on acid-base indicator reactivity in SiO2 gels

AU - Wu, Zhijian

AU - Lee, Kangtaek

AU - Lin, Yanxin

AU - Lan, Xinren

AU - Huang, Liyao

N1 - Funding Information: The authors thank the financial assistance from Research Foundation of Overseas Chinese Affairs Office, State Council, P.R. China, and Fujian Provincial Science and Technology Creation Foundation for Young Researcher (2001J023), P.R. China. Z.W. thanks the postdoctoral fellowship from Yonsei NT center at Yonsei University, Korea.

PY - 2003/6/1

Y1 - 2003/6/1

N2 - Methyl orange (MO) and phenolphthalein (P) doped SiO2 gels derived from tetraethyl orthosilicate (TEOS) and modified with cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and stearic acid (SA) are prepared. FTIR and TG analyses are used to characterize the gels. The color changes and leaching behavior of MO and P within the gels are investigated and explained on the basis of the gel structures and the reaction mechanism. The experimental results show that surface-active substances have obvious effects on the acid-base response and the leaching behavior of the acid-base indicators within the SiO2 gels.

AB - Methyl orange (MO) and phenolphthalein (P) doped SiO2 gels derived from tetraethyl orthosilicate (TEOS) and modified with cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and stearic acid (SA) are prepared. FTIR and TG analyses are used to characterize the gels. The color changes and leaching behavior of MO and P within the gels are investigated and explained on the basis of the gel structures and the reaction mechanism. The experimental results show that surface-active substances have obvious effects on the acid-base response and the leaching behavior of the acid-base indicators within the SiO2 gels.

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