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Journals / Sigma Journal of Engineering and Natural Sciences / 2026 / Volume: 34 Issue: 2

EFFECT OF ACID TYPE AND GELATION pH ON THE STRUCTURAL PROPERTIES OF SILICA AEROGELS PREPARED BY USE OF RICE HULL BIOSILICA

Burcu Karakuzu(YILDIZ TECHNICAL UNIVERSITY)
Tülay Merve Temel(YILDIZ TECHNICAL UNIVERSITY)
Sevil Yücel(YILDIZ TECHNICAL UNIVERSITY)
Pınar Terzioğlu(MUGLA SITKI KOCMAN UNIVERSITY)
Yeliz Elalmış(YILDIZ TECHNICAL UNIVERSITY)
Pages
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Publication Date
2016-06-01
DOI
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AI Summary & Key Takeaways

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

The densities, pore sizes and specific surface areas of the silica aerogels were in the range of 0.273-0.849 g cm-3, 3.24-10.22 nm, and 238-726 m2g-1, respectively.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the experimental results of the surface area, morphology, and density of silica aerogels obtained at different preparation conditions are reported.
📊
Key Findings & Data:The aerogels have been produced by sol-gel process followed by ambient pressure drying.
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Conclusion & Impact:The densities, pore sizes and specific surface areas of the silica aerogels were in the range of 0.273-0.849 g cm-3, 3.24-10.22 nm, and 238-726 m2g-1, respectively.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Ambient pressure drying · rice hull · silica aerogel.

Abstract

In this study, the experimental results of the surface area, morphology, and density of silica aerogels obtained at different preparation conditions are reported. The aerogels have been produced by sol-gel process followed by ambient pressure drying. Rice hull ash silicate solution was used as an inexpensive precursor. The type of acids and gelation pH has strongly affected the structural properties of the final products. The silica aerogels have a well-developed nanoporous structure and a high specific surface area. The densities, pore sizes and specific surface areas of the silica aerogels were in the range of 0.273-0.849 g cm-3, 3.24-10.22 nm, and 238-726 m2g-1, respectively.

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Cite This Article

Karakuzu, B., Temel, T. M., Yücel, S., Terzioğlu, P., Elalmış, Y. (2016). EFFECT OF ACID TYPE AND GELATION pH ON THE STRUCTURAL PROPERTIES OF SILICA AEROGELS PREPARED BY USE OF RICE HULL BIOSILICA. Sigma Journal of Engineering and Natural Sciences, Volume: 34 Issue: 2. https://ajindex.com/articles/1632969

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