Abstract

Mezogözenekli silika yapılar, homojen yüzeyleri, düzenli ve ayarlanabilir gözenek yapıları, kimyasal modifikasyon kolaylığı, yüksek yüzey alanı ve geniş gözenek hacmi nedeni ile kataliz, kontrollü ilaç salınımı ve adsorpsiyon gibi pek çok alanda ön plana çıkan ve yapılan çalışmaların odağı olan bir malzeme grubudur. Bu çalışmada ise çeşitli alanlarda kullanılabilecek bir mezoporlu silika yapı elde edilmesi amacı ile düzenli bir mezogözenekli yapı olarak MCM-41 ilk olarak aminopropil ile fonksiyonelleştirilmiş (APMCM41) ve ardından benzen halkasına bağlı üç hidroksil fonksiyonel grubu içeren bir fenol olan pirogallol molekülü, aminopropil ile fonksiyonelleştirilmiş olan MCM-41 nanoparçacıklarına başarılı bir şekilde immobilize edilmiştir. Pirogallol yapısının mezogözenekli silika yapıya başarı ile bağlandığı FTIR analizi ile tespit edilmiştir. Yapılan analizlerde üretilen silika yapının toplam yüzey alanının 205,42 m2/g olduğu ve ortalama gözenek boyutunun ise 6,13 nm olduğu görülmüştür. Yapılan termogravimetrik analiz ile mezogözenekli silika malzemenin termal stabilitesi belirlenmiştir.

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