Experimental Design of Surface Modification of Expanded Obsidian and Determination of Water Sorption Capacity

Abstract:

The aim of this paper is to study the possibility of expanded obsidian and its modified product use for oil sorption, in that tetraethoxisilane (TEOS) has been used as a modifier. The optimal concentration of the modifier was determined by 50 per cent weight of expanded obsidian. The expanded obsidian was previously activated with 0,1 M solution of hydrochloric acid. IR spectrometry was used to characterise structural changes in the modified expanded obsidian samples. To determine water sorption capacity a series of experiments has been carried out. The analysis of obtained experimental data showed that after surface modification of expanded obsidian water capacity is reduced 3 times after the surface modification of EO.

• Periodical: Advanced Materials Research (Volume 1020)
• Pages: 823-826
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1020.823
• Online since: October 2014
• Authors: G.Sh. Hovsepyan, M.A. Kalantaryan, T.V. Yedoyan
• Keywords: Absorption, Expanded Obsidian, Modification, Oil, Oil Sorbent, Water, Water Absorption

References

[1] Paschenko A.A. Hydrobization, Kiev, Naukova dumka, 1973, 237p.

[2] Kamenschikov F.A. Bogomolni E.I. Oil adsorbents. Moscow, Ijevsk-2005, 268 p.

[3] Ergojin E.E. Organomineralic adsorbents and polyfunctional systems on the basis of aluminium –silica natural product. /E.E. Ergojin A.M. Acsembaeva, 2007, 373 p.

[4] Kalantaryan M.A. Surface modification of expanded obsidian. YSUAC. Bulletin, 2013, 47p.

[5] Hovsepyan G. Sh., Safaryan A.M., Kalantaryan M.A., Sargsyan T.M. Bloated obsidian as an oil sorbent. Proceedings of the 4th International conference on contemporary problems in architecture and construction. 2012, Volume 2, Poland, 479 p.

[6] Alentiev A.A. Kletchenkov I.I. Paschenko A.A. Silicium–organic hydrofobizators. Kiev, Technical literature USS, 1962, 54 p.