TY - GEN
T1 - Antibacterial and self-cleaning ability of Ag-TiO2film coated on silicone
AU - Kevin, Sharen
AU - Slamet,
N1 - Publisher Copyright:
© 2022 Author(s).
PY - 2022/12/5
Y1 - 2022/12/5
N2 - This study tried to modify the surface of silicone, which is widely used as a mobile phone case, so it has antibacterial and self-cleaning ability. The silicone surface was coated using Ag-TiO2 (silver-titania), prepared by the photo-assisted deposition (PAD) method. Before the coating process, the hydrophobic silicone surface was treated with UV-C radiation. This study aimed to obtain the optimal Ag (silver) loading on antibacterial and self-sterilization performance and the effect of UV-C irradiation and addition of TEOS (Tetraethyl orthosilicate) to the resulted coating. To see the difference of Ag addition, sampleswere characterized using UV-Vis DRS. The results showed that UV-C irradiation and the addition of TEOS additives wereeffective in producing a strong coating. Under the UV irradiation, the degradation rate of methylene blue dye used to represent the self-cleaning ability. Silicone which was loaded with 0.5% Ag showed 78.09% of degradation within 2 hourswhile the TiO2 only shows 20.09% of degradation. Meanwhile, the addition of larger loading of Ag (1%, 1.5%, 3% and 6%)will reduce the degradation ability. As for the disinfection performance, 1.5% Ag showed the best results among others. Iteffectively decreased the E.coli colonies growth by 20.91%, while the blank and TiO2 (titania) coated silicone respectively showed 10.23% and 0% growth of E.coli colonies within 10 minutes in dark conditions. The addition of larger loading of Ag also showed the same effect as on the self-cleaning test. This kind of silicone is very promising, especially in this pandemic era.
AB - This study tried to modify the surface of silicone, which is widely used as a mobile phone case, so it has antibacterial and self-cleaning ability. The silicone surface was coated using Ag-TiO2 (silver-titania), prepared by the photo-assisted deposition (PAD) method. Before the coating process, the hydrophobic silicone surface was treated with UV-C radiation. This study aimed to obtain the optimal Ag (silver) loading on antibacterial and self-sterilization performance and the effect of UV-C irradiation and addition of TEOS (Tetraethyl orthosilicate) to the resulted coating. To see the difference of Ag addition, sampleswere characterized using UV-Vis DRS. The results showed that UV-C irradiation and the addition of TEOS additives wereeffective in producing a strong coating. Under the UV irradiation, the degradation rate of methylene blue dye used to represent the self-cleaning ability. Silicone which was loaded with 0.5% Ag showed 78.09% of degradation within 2 hourswhile the TiO2 only shows 20.09% of degradation. Meanwhile, the addition of larger loading of Ag (1%, 1.5%, 3% and 6%)will reduce the degradation ability. As for the disinfection performance, 1.5% Ag showed the best results among others. Iteffectively decreased the E.coli colonies growth by 20.91%, while the blank and TiO2 (titania) coated silicone respectively showed 10.23% and 0% growth of E.coli colonies within 10 minutes in dark conditions. The addition of larger loading of Ag also showed the same effect as on the self-cleaning test. This kind of silicone is very promising, especially in this pandemic era.
UR - http://www.scopus.com/inward/record.url?scp=85144557418&partnerID=8YFLogxK
U2 - 10.1063/5.0113652
DO - 10.1063/5.0113652
M3 - Conference contribution
AN - SCOPUS:85144557418
T3 - AIP Conference Proceedings
BT - Proceedings of the 7th International Symposium on Applied Chemistry 2021
A2 - Al Muttaqii, Muhammad
A2 - Kurniawan, Kiki
A2 - Hanafi, Muhammad
A2 - Randy, Ahmad
PB - American Institute of Physics Inc.
T2 - 7th International Symposium on Applied Chemistry 2021, ISAC 2021
Y2 - 28 September 2021 through 30 September 2021
ER -