Çeşitli Kimyasal Reaktifler Kullanılarak Koyun Gübresinden Süper Aktif Karbon Üretimi

Yüksek yüzey alanına sahip aktif karbon elde etmek amacıyla, koyun gübresinin çinko klorür (ZnCl2), potasyum hidroksit(KOH) ve fosforik asit (H3PO4) kimyasal ajanı kullanılarak kimyasal ve fiziksel aktivasyonu uygulanmıştır. Ham materyalin farklı partikül boyutları(-900+550, -550+350 ve -350+250 m), kimyasal aktivasyon ajanının farklı emdirme oranlarında(1/1, 2/1, 3/1 ve 4/1), farklı karbonizasyon sıcaklığı (400-900 oC), ve karbonizasyon süresi gibi aktivasyon parametrelerinin nihai ürünlerin özellikleri üzerindeki etkisi araştırılmıştır. Üretilen aktif karbonlar 77 K'de azot adsorpsiyon izotermleri ile karakterize edilmiştir. 3/1 emprenye oranında ZnCl2 kullanılarak 400 oC de karbonizasyon sıcaklığı ve 45 dakika karbonizasyon süresi ile elde edilen süper aktif karbonun yüzey alanı 2170 m2/g olarak ölçülmüştür. Bu aktif karbonun SEM, FTIR analizleri yardımıyla yüzey morfolojisi ve karakterizasyonu yapılmıştır.

Anahtar Kelimeler:

Aktif karbon, fiziksel aktivasyon, karbonizasyon, kimyasak aktivasyon, yüzey alanı

Production of Super Activated Carbon from Sheep Manure Using Various Chemical Reagents

In order to obtain activated carbon with a high surface area, chemical and physical activation was applied to sheep manure using the chemical agent zinc chloride (ZnCl2), potassium hydroxide (KOH) and phosphoric acid (H3PO4). The effect of activation parameters such as different particle sizes of the raw material (-900+550, -550+350 and -350+250 m), different impregnation rates of the chemical activation agent (1/1, 2/1, 3/1 and 4/1), different carbonization temperature (400-900 oC), and carbonization time on the properties of the final products was investigated. The activated carbons produced are characterized by nitrogen adsorption isotherms at 77 K. Using ZnCl2 at an impregnation ratio of 3/1, the surface area of the superactivated carbon obtained with a carbonization temperature at 400 oC and a carbonization time of 45 minutes was measured as 2170 m2/g. Surface morphology and characterization of this activated carbon were performed with the help of SEM, FTIR analyzes.

Keywords:

Activated carbon, carbonisation, chemical activation, physical activation, surface area,

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