The influence of various pH values on the aerogel physical properties by sol-gel technique

Baha Fakhry shehab

doi:10.30723/ijp.v17i41.461

Article Details

The influence of various pH values on the aerogel physical properties by sol-gel technique

Authors:

Baha Fakhry shehab

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Physics Vol.17 Issue 41, pp.75-81

Document Type:

Article

Publication Date:

5/2019

Document Language:

English

Document ID (Org No.):

2001369136

pISSN:

2664-5548

DOI:

10.30723/ijp.v17i41.461

Keywords:

Abstract:

 Hydrophobic silica aerogels were successfully preparation by an ambient pressure drying method from sodium silicate (Na2SiO3) with different pH values (5, 6, 7, 8, 9 and 10). In this study, acidic HCl (1M), a basic NH4OH (1M) were selected as a catalyst to perform the surface modification in a TMCS (trimethylchlorosilane) solution. The surface chemical modification of the aerogels was assured by the Fourier transform infrared (FTIR) spectroscopic studies. Other physical properties, such as pore volume and pore size and specific surface area were determined by Brunauer-Emmett- Teller (BET) method. The effect of pH values on the bulk density of aerogel. The sol–gel parameter pH value in the sol, have marked effects on the physical properties of the silica aerogels produced by this technique. The density and the hydrophobic tendency of the aerogels were significantly influenced.

Article Details

The influence of various pH values on the aerogel physical properties by sol-gel technique

Authors:

Baha Fakhry shehab

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Physics Vol.17 Issue 41, pp.75-81

Document Type:

Article

Publication Date:

5/2019

Document Language:

English

Document ID (Org No.):

2001369136

pISSN:

2664-5548

DOI:

10.30723/ijp.v17i41.461

Aerogels

hydrophobic

surface area

sodium silicate

Issues

Article Details

The influence of various pH values on the aerogel physical properties by sol-gel technique

Authors: Baha Fakhry shehab

Publisher: University of Baghdad

Journal: Iraqi Journal of Physics Vol.17 Issue 41, pp.75-81

Document Type: Article

Publication Date: 5/2019

Document Language: English

Document ID (Org No.): 2001369136

pISSN: 2664-5548

DOI: 10.30723/ijp.v17i41.461

Aerogels

hydrophobic

surface area

sodium silicate

Issues

Authors:

Baha Fakhry shehab

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Physics Vol.17 Issue 41, pp.75-81

Document Type:

Article

Publication Date:

5/2019

Document Language:

English

Document ID (Org No.):

2001369136

pISSN:

2664-5548

DOI:

10.30723/ijp.v17i41.461