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All Journal Journal of Material Science and Radiation
Mahathir Mohamed
Malaysian Nuclear Agency
Materials Science & Nanotechnology Physics

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Superhydrophobic Surface from Sol Gel Synthesis of Thin Sol Gel Fluorinated Silica Coating Norfazlinayati Othman; Mohd Hamzah Harun; Izzuddin Mohamad Zaharuddin; Nor Adnin Ezani Mohd Ezani; Mahathir Mohamed; Mohd Sofian Alias
Journal of Material Science and Radiation Vol. 2 No. 1 (2026)
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v2i1.495

Abstract

A thin fluorinated silica coating was synthesized via a sol–gel route using silica nanoparticles as surface roughness agents functionalized with long-chain fluoroalkylsilane. The coatings were characterized for surface wettability, optical transmittance, infrared spectra, and morphology. All samples exhibited excellent optical transparency as verified by UV–visible spectroscopy. The fluorinated silica coating demonstrated markedly enhanced water repellency compared to TEOS and TEOS–FAS systems, confirming the critical role of fluorinated silica in improving hydrophobicity. These findings indicate its strong potential for application as a transparent hydrophobic coating in optoelectronic devices, lenses, and window materials
Gamma Irradiation Induced Surface Functionalization of Carbon Nanotubes Synthesized from Polyethylene Terephthalate (PET) Waste Nor Adnin Ezani Mohd Ezani; Mohd Hamzah Harun; Izzuddin Mohd Zaharuddin; Norfazlinayati Othman; Mahathir Mohamed; Mohd Sofian Alias; Mohd Faizal Abd Rahman; Khairil Nor Kamal Umar; Nurul Huda Mudri; Farah Fadzehah Hilmi; Khairul Azhar Abdul Halim; Rida Tajau
Journal of Material Science and Radiation Vol. 2 No. 2 (2026): August
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v2i2.722

Abstract

Carbon nanotubes were synthesized by using chemical vapor deposition using polyethylene terephthalate (PET) waste. The CNTs that were produced were functionalized with organic acid namely benzoic acids from 0 up to 70 kGy using gamma irradiation. To determine the acid groups, acid base titration was utilized whereas transmission electron microscope was used to determine the morphology of the functionalized CNT and dispersion characteristic was carried out for pristine and functionalized CNTs. The results obtained show that gamma irradiation significantly induce acid functionalized CNT as compared to unirradiated acid functionalized CNT. This indicates the importance of radiation technique in functionalizing carbon nanomaterials which is feasible, green, clean and process-effective.
Co-Authors Farah Fadzehah Hilmi Izzuddin Mohamad Zaharuddin Izzuddin Mohd Zaharuddin Khairil Nor Kamal Umar Khairul Azhar Abdul Halim Mohd Faizal Abd Rahman Mohd Hamzah Harun Mohd Hamzah Harun Mohd Sofian Alias Mohd Sofian Alias Nor Adnin Ezani Mohd Ezani Nor Adnin Ezani Mohd Ezani Norfazlinayati Othman Norfazlinayati Othman Nurul Huda Mudri Rida Tajau