Al-MCM-41 Tipi Mezogözenekli Katalizörlerin Hidrotermal ve Sonokimyasal Yöntemle Sentezi ve Katalitik Uygulaması

Yıl 2016, Cilt: 16 Sayı: 3, 521 - 530, 31.12.2016

Pınar Acar Bozkurt , Ümran Gedikli

Öz

Bu çalışma kapsamında alüminyum metali ile desteklenmiş Al-MCM-41 tipi mezogözenekli katalizörler hidrotermal ve sonokimyasal olmak üzere iki farklı yöntemle sentezlenmiştir. Elde edilen katalizörlerin yapısı X-ışını kırınım deseni (XRD), taramalı elektron mikroskobu (SEM), enerji dağılımlı X-ışını spektroskopisi (EDS) ve Brunauer Emmett Teller (BET) metotları ile karakterize edilmiş ve karakterizasyon sonuçları incelenerek, farklı sentez metotlarının katalizörlerin fiziksel özellikleri üzerindeki etkileri belirlenmiştir. Elde edilen sonuçlara göre sonokimyasal yöntemle sentezlenen katalizörlerin daha düzenli kristal yapısına, yüksek yüzey alanına ve mezogözenek dağılımına sahip olduğu belirlenmiştir. Düzgün gözenek boyut dağılımı ve yüksek yüzey alanına sahip MCM-41 katalizörü yeterli katalitik aktiviteye sahip olmadığı için, alüminyum metali kullanılarak silis yapısının modifikasyonu ile katalitik aktivitenin arttırılması amaçlanmıştır. Bu amaçla elde edilen Al-MCM-41 atık cep telefonu devre kartlarının pirolizinde katalizör olarak kullanılarak sıvı ürün verimi üzerine katalitik etkisi araştırılmıştır.

Anahtar Kelimeler

Al-MCM-41, hidrotermal yöntem, sonokimyasal yöntem, mezogözenekli katalizör, sentez, karakterizasyon

Kaynakça

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