Gamma-radiation-induced reaction of sulfuric acid with silica gel : a novel method for the formation of sulfonic acid-functionalized silica (sio2-so3h)‎

Joint Authors

Sayf al-Din, Kh. A.
Husni, H. M.

Source

Arab Journal of Nuclear Sciences and Applications

Issue

Vol. 53, Issue 4 (31 Oct. 2020), pp.122-133, 12 p.

Publisher

The Egyptian Society of Nuclear Science and Applications

Publication Date

2020-10-31

Country of Publication

Egypt

No. of Pages

12

Main Subjects

Chemistry

Topics

Abstract EN

Radiation-induced reaction of sulfuric acid with silica gel (SG) was carried out using ɤ-radiation from a 60Co source at room temperature and, its mechanism were suggested.

The formation of sulfonated SG (SiO2-SO3H) was confirmed by IR, thermal analysis (TGA/ DSC).

Elemental analysis and morphological structure of treated SG (SGtreated) was investigated by scanning electron microscopy (SEM).

According to the comparison of the SEM images of SG and SGtreated, it seems that, irradiation of SG in the presence of sulfuric acid leads to partial segmentation of SG particles.

The IR spectra of the treated silica (SGtreated) is different from that of the SG.

Where, peaks related to the presence of sulfunic group are observed, as well as shifts of SG peaks due to treatment.

Also, TGA/ DSC of SGtreated is different from that of SG.

Elemental analysis reveals that particle size of SG affects the S/O % value, where SGtreated with >0.16mm - 0.2mm particle size has the maximum value.

Also, S/O% value, of >0.16mm - 0.2mm SG particle size, increased, linearly, with orbed dose up to 80 kGy and then decresedat higher doses.

American Psychological Association (APA)

Sayf al-Din, Kh. A.& Husni, H. M.. 2020. Gamma-radiation-induced reaction of sulfuric acid with silica gel : a novel method for the formation of sulfonic acid-functionalized silica (sio2-so3h). Arab Journal of Nuclear Sciences and Applications،Vol. 53, no. 4, pp.122-133.
https://search.emarefa.net/detail/BIM-979215

Modern Language Association (MLA)

Sayf al-Din, Kh. A.& Husni, H. M.. Gamma-radiation-induced reaction of sulfuric acid with silica gel : a novel method for the formation of sulfonic acid-functionalized silica (sio2-so3h). Arab Journal of Nuclear Sciences and Applications Vol. 53, no. 4 (Oct. 2020), pp.122-133.
https://search.emarefa.net/detail/BIM-979215

American Medical Association (AMA)

Sayf al-Din, Kh. A.& Husni, H. M.. Gamma-radiation-induced reaction of sulfuric acid with silica gel : a novel method for the formation of sulfonic acid-functionalized silica (sio2-so3h). Arab Journal of Nuclear Sciences and Applications. 2020. Vol. 53, no. 4, pp.122-133.
https://search.emarefa.net/detail/BIM-979215

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 130-133

Record ID

BIM-979215