عنوان المقالة:Encapsulation of methyl orange pH-indicator into a sol-gel matrix
أ.د نظام محمود الأشقر | Prof. Nizam M. El-Ashgar | 13399
- نوع النشر
- مجلة علمية
- المؤلفون بالعربي
- Farid R Zaggout, Nizam M El-Ashgar, Shehata M Zourab, Issa M El-Nahhal, Hanan Motaweh
- الملخص العربي
- The acid catalyzed sol-gel reaction was used to encapsulate methyl orange pH-indicator into transparent monolithic silica matrices. Tetraethylorthosilicate was used for the entrapment of the methyl orange indicator. The immobilized methyl orange shows similar behavior as its solution counterpart. It retains its structure during the sol-gel reactions in terms of response to pH. The surface morphology indicates that the methyl orange molecules are weakly interacted within the host silica network. This study shows that the methyl orange pH-indicator can be doped into sol-gel silica matrix and used for sensing pH as a solid indicator.
- تاريخ النشر
- 31/10/2005
- الناشر
- Materials Letters, Science Direct
- رابط DOI
- https://do
- رابط خارجي
- http://www.sciencedirect.com/science/article/pii/S0167577X05004374
- الكلمات المفتاحية
- Methyl orange pH-indicator, Sol-gel encapsulation, Immobilization of indicators, Polysiloxane entrap