Boron adsorption mechanism of a hybrid gel derived from tetraethoxysilane and bis(trimethoxysilylpropyl)amine

Haining Liu, Binju Qing, Xiushen Ye, Min Guo, Quan Li, Zhijian Wu, Kitae Lee, Deokkyu Lee, Kangtaek Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

An organic/inorganic hybrid gel was prepared with tetraethoxysilane (TEOS) and bis(trimethoxysilylpropyl)amine (TSPA) as precursors. The adsorption of boron on the hybrid gel in aqueous solutions was investigated comprehensively by varying the initial boron concentration, pH, ionic strength, and temperature. The equilibrium adsorption amount of boron increases with the increase in initial boron concentration and ionic strength, but decreases with the increase in temperature. The adsorption amount exhibits a maximum at initial pH of 4-10. Boron appears to be adsorbed in both H3BO3 and B(OH)4- forms through the hydrogen bonding, electrostatic and hydrophobic attractions.

Original languageEnglish
JournalCurrent Applied Physics
Volume9
Issue number4 SUPPL.
DOIs
Publication statusPublished - 2009 Jul 1

Fingerprint

Boron
Amines
amines
boron
Gels
gels
Adsorption
adsorption
Polymers
Ionic strength
electrostatic bonding
attraction
Electrostatics
Hydrogen bonds
tetraethoxysilane
bis(trimethoxysilylpropyl)amine
aqueous solutions
Temperature
temperature
hydrogen

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Liu, Haining ; Qing, Binju ; Ye, Xiushen ; Guo, Min ; Li, Quan ; Wu, Zhijian ; Lee, Kitae ; Lee, Deokkyu ; Lee, Kangtaek. / Boron adsorption mechanism of a hybrid gel derived from tetraethoxysilane and bis(trimethoxysilylpropyl)amine. In: Current Applied Physics. 2009 ; Vol. 9, No. 4 SUPPL.
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Boron adsorption mechanism of a hybrid gel derived from tetraethoxysilane and bis(trimethoxysilylpropyl)amine. / Liu, Haining; Qing, Binju; Ye, Xiushen; Guo, Min; Li, Quan; Wu, Zhijian; Lee, Kitae; Lee, Deokkyu; Lee, Kangtaek.

In: Current Applied Physics, Vol. 9, No. 4 SUPPL., 01.07.2009.

Research output: Contribution to journalArticle

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T1 - Boron adsorption mechanism of a hybrid gel derived from tetraethoxysilane and bis(trimethoxysilylpropyl)amine

AU - Liu, Haining

AU - Qing, Binju

AU - Ye, Xiushen

AU - Guo, Min

AU - Li, Quan

AU - Wu, Zhijian

AU - Lee, Kitae

AU - Lee, Deokkyu

AU - Lee, Kangtaek

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AB - An organic/inorganic hybrid gel was prepared with tetraethoxysilane (TEOS) and bis(trimethoxysilylpropyl)amine (TSPA) as precursors. The adsorption of boron on the hybrid gel in aqueous solutions was investigated comprehensively by varying the initial boron concentration, pH, ionic strength, and temperature. The equilibrium adsorption amount of boron increases with the increase in initial boron concentration and ionic strength, but decreases with the increase in temperature. The adsorption amount exhibits a maximum at initial pH of 4-10. Boron appears to be adsorbed in both H3BO3 and B(OH)4- forms through the hydrogen bonding, electrostatic and hydrophobic attractions.

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