Synthesis of Silica from Rice Husk Waste for Hydrophobic Material as an Anti-Water Coating for Eyeglasses

Phahul Zhemas Zul Nehan, Ahmad Ali Akbar, Muhammad Ilham Nur Karim, Raychan Abyqa Fahriza, Mochamad Zainuri


Hydrophobic materials made of silica as a coating for glasses are very attractive. The synthesis of silica (SiO2) from rice husk ash was successfully carried out using the sol-gel method. The hydrophobic silica composition is made with four variations of silica, consisting of 0.5, 1.0, 1.5, 2.0 g and polydimethylsiloxane (PDMS) keep constant in 20 g. The raw material was first characterized by X-ray Fluorescence (XRF) to investigate element composition. Then, silica powder obtained from rice husk ash was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Particle Size Analyzer (PSA) and Water Contac Angel (WCA) were employed to investigate functional groups material, size of particles and hydrophobicity of the prepared samples for coating glass. The result of contact angel from coating glass exhibited more than 90◦ and the maximum hydrophobicity properties of polydimethylsiloxane/silica (PDMS/SiO2) was about 111.40◦ for the silica composition of 2 g.


Hydrophobic; Polydimethylsiloxane; Rice Husk Ash; Silica

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A. Syafiq, et al., ”Transparent self-cleaning coating of modified polydimethylsiloxane (PDMS) for real outdoor application,” Prog. Org. Coatings, vol. 131, no. December 2018, pp. 232-239, 2019.

N. M. Sari, et al., ”The Utilization of Rice Husk Waste for Mixed Bokashi Fertilizer and Biobriket Making As Biofuels,” PengabdianMu, vol. 2, no. September, pp. 90-97, 2017.

D. Ziegler, et al., ”Rice husk ash as a new humidity sensing material and its aging behavior,” Sensors Actuators, B Chem., vol. 328, no. June 2020, p. 129049, 2021.

D. V. Wellia, F. Alvionita, and S. Arief, ”Sintesis Permukaan Kaca Hidrofobik Melalui Kombinasi TiO2/Asam Stearat Untuk Aplikasi Material Self-Cleaning,” J. Res. Educ. Chem., vol. 2, no. 1, p. 12, 2020.

X. Huang, et al., ”Preparation of hydrophobic broadband antireflective SiO2 coating on flexible poly(methyl methacrylate) substrates,” Colloids Surfaces A Physicochem. Eng. Asp., vol. 538, no. September 2017, pp. 519-525, 2018.

L. Silvia, et al., ”Effect of Modified SiO2 on the Hydrophobic Properties as Self Cleaning Materials,” Mat. Sci. Forum., vol. 966, pp. 83-88, 2019.

R. F. G. Priyadi and S. Wahyuni, ”Synthesis of TiO2/PDMS Composites as Antibacterial Coatings on Cotton Fabrics,” Indo. J. Chem. Sci, 10, 3, 2021.

A. I. Hafez, ”Synthesis of Silica and Silica Compounds Based on Rice Husk Ash: Article Review,” Wat. Ener. Food. Env. J., vol. 3, no. 2, pp. 67-75, 2022.

S. Sankar, et al., ”Rapid Sonochemical Synthesis of Spherical Silica Nanoparticles Derived from Brown Rice Husk,” Ceramics International, vol. 44, pp 8720-8724, 2018.

I. Zuwanna, et al., ”Preparation and characterization of silica from rice husk ash as a reinforcing agent in whey protein isolate biocomposites film,” South African Journal of Chemical Engineering. vol. 44, pp. 337-343, 2023.

M. A. Bonakdar, et al., ”Highly porous biobased membranes via electrospinning of PBS and CTAB,” Polymer, vol. 280, 126045, 2023.

J. Zhao, et al., ”Hydrophobic or superhydrophobic modification of cement-based materials: A systematic review,” Composites Part B, 243, 110104, 2022.

L. Silvia, I. Hasanah, and M. Zainuri, ”Hydrophobic of polyethylene/SiO2 modified coating for self-cleaning material,” AIP Conference Proceedings, 2202, 020004, 2019.

G. Nagayama and D. Zhang, ”Intermediate wetting state at nano/microstructured surfaces,” Soft Matter, vol. 16, pp 3514-3521, 2020.



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