Open AccessSINTESIS PERMUKAAN KACA HIDROFOBIK MELALUI KOMBINASI TiO2/ASAM STEARAT UNTUK APLIKASI MATERIAL SELF-CLEANING
Author(s) -
Diana Vanda Wellia,
Febby Alvionita,
Syukri Arief
Publication year - 2020
Publication title -
journal of research and education chemistry (jrec)
Language(s) - English
Resource type - Journals
eISSN - 2685-8959
pISSN - 2685-8967
DOI - 10.25299/jrec.2020.vol2(1).4800
Subject(s) - stearic acid , materials science , surface roughness , fourier transform infrared spectroscopy , chemical engineering , titanium , contact angle , surface finish , nuclear chemistry , composite material , chemistry , metallurgy , engineering
The surface of ultrahydrophobic glass has been successfully prepared using the combination of TiO2 and stearic acid. TiO2 was used to increase the surface roughness, while stearing acid was a surface modifier. The peroxo sol-gel method has been used to synthesize TiO2 precursors on the glass layer followed by modification of stearic acid. The maximal water contact angle of 141o has been obtained for the composition of 0.4 grams of stearic acid and 20 mL of ethanol (NKTS-2%). AFM analysis showed the roughness of NKTS-2% is 4,15 nm, which was greater than the pure glass. FTIR analysis also showed vibration of C=O (carbonyl) at 1697cm-1 indicating the chemical interaction between TiO2 and stearic acid. EDX spectrum analysis of TiO2/stearic acid (TiO2/C18H36O2) showed the existence of titanium, oxygen, and carbon. The optimum sample (NKTS-2%) showed a good transparency and self-cleaning properties compared to pure glass