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Journals / Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi / 2026 / Cilt: 15

Evaluation and characterization of waste walnut shells as a porous material

Atık ceviz kabuklarının gözenekli bir malzeme olarak değerlendirilmesi ve karakterizasyonu

İlknur Demıral(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, MÜHENDİSLİK-MİMARLIK FAKÜLTESİ)0000-0003-2867-5205
Betül Aslan(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, MÜHENDİSLİK-MİMARLIK FAKÜLTESİ)0000-0003-2268-9489
Canan Şamdan(ESKISEHIR OSMANGAZI UNIVERSITY)0000-0001-8755-0790
Pages
1–10
Publication Date
2026-01-15
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

This study used walnut shells as a carbon source to synthesize a porous solid, achieving a surface area of 1328 m²/g at 400 °C with a 4:1 impregnation ratio.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The demand for porous materials in consumer products and for societal welfare improvements has led to 20th-century global regulations aimed at reducing pollution.
📊
Key Findings & Data:The increased need for energy resources and storage materials further boosts demand.
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Conclusion & Impact:This study used walnut shells as a carbon source to synthesize a porous solid, achieving a surface area of 1328 m²/g at 400 °C with a 4:1 impregnation ratio.
🔬Design:Araştırma Makalesi
📍Scope:2023 Verileri
⚙️Variables:Aktif karbon · Yüzey karakterizasyonu · Biyokütle (ceviz kabuğu)

Abstract

The demand for porous materials in consumer products and for societal welfare improvements has led to 20th-century global regulations aimed at reducing pollution. The increased need for energy resources and storage materials further boosts demand. A key factor affecting activated carbon costs, a porous material, is raw material source; walnut shells are highly suitable. In 2023, Türkiye produced ~360,000 tons of walnuts, resulting in ~180,000 tons of shell waste, often discarded or incinerated. Converting these shells into products is essential. Activated carbon is made by carbonizing biomass in an oxygen-free environment. This study used walnut shells as a carbon source to synthesize a porous solid, achieving a surface area of 1328 m²/g at 400 °C with a 4:1 impregnation ratio.

Özet

Tüketici ürünlerinde gözenekli malzemelere olan talep ve toplumsal refahın iyileştirilmesi, 20. yüzyılda kirliliği azaltmayı amaçlayan küresel düzenlemelere yol açmıştır. Enerji kaynaklarına ve depolama malzemelerine olan ihtiyacın artması talebi daha da artırıyor. Gözenekli bir malzeme olan aktif karbon maliyetlerini etkileyen önemli bir faktör hammadde kaynağıdır; ceviz kabukları son derece uygundur. 2023 yılında Türkiye ~360.000 ton ceviz üretmiş ve bunun sonucunda ~180.000 ton kabuk atığı kullanılmış ve bu atıklar genellikle atılmış veya yakılmıştır. Bu kabukların ürüne dönüştürülmesi çok önemlidir. Aktif karbon, biyokütlenin oksijensiz bir ortamda karbonize edilmesiyle yapılır. Bu çalışmada gözenekli bir katı sentezlemek için karbon kaynağı olarak ceviz kabukları kullanılmış ve 4:1 emprenye oranıyla 400 °C'de 1328 m²/g yüzey alanı elde edilmiştir.

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Cite This Article

Demıral, İ., Aslan, B., Şamdan, C. (2026). Evaluation and characterization of waste walnut shells as a porous material. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 15, 1–10. https://doi.org/10.28948/ngumuh.1739426

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