Sintesis dan Karakterisasi Silika Sekam Padi sebagai Material Self-Cleaning

Gabriela Elsandika; Made Dirgantara; Siti Unvaresi Misonia Beladona; Marvin Horale Pasaribu

doi:10.25077/jfu.14.2.124-130.2025

Authors

Gabriela Elsandika Program Studi Fisika, Fakultas MIPA, Universitas Palangka Raya
Made Dirgantara Program Studi Fisika, Fakultas MIPA, Universitas Palangka Raya
Siti Unvaresi Misonia Beladona Program Studi Kimia, Fakultas MIPA, Universitas Palangka Raya
Marvin Horale Pasaribu Program Studi Kimia, Fakultas MIPA, Universitas Palangka Raya

DOI:

https://doi.org/10.25077/jfu.14.2.124-130.2025

Keywords:

Hydrophobic, Rice Husk, Self-Cleaning, Silica, TMCS

Abstract

This study aimed to valorize rice husk waste by extracting silica and developing a self-cleaning surface coating. Silica was successfully extracted from rice husk ash via an alkaline reflux method followed by acid precipitation. The extracted silica exhibited an amorphous structure with a high purity of 96.7%, as confirmed by X-ray diffraction (XRD) and X-ray fluorescence (XRF) analysis. Subsequent modification with Trimethylchlorosilane (TMCS) significantly enhanced the hydrophobicity of the silica, resulting in a contact angle of 99.84° with water. The synthesized silica-based material demonstrates promising potential as a self-cleaning surface coating, offering improved durability and ease of maintenance.

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