TY - GEN
T1 - Effect of chitosan addition on the synthesis of CuO/TiO2and encapsulated essential oils for antibacterial activity
AU - Zahra, Hilmia
AU - Slamet,
N1 - Funding Information:
This research was funded by Hibah PDUPT 2021 contract number NKB-210/UN2.RST/HKP.05.00/2021. The author would like to express gratitude to Chemical & Natural Engineering Laboratory and Test Laboratory in the Chemical Engineering Department, University of Indonesia, Depok, Indonesia, for remarkable contributions to this research.
Publisher Copyright:
© 2022 Author(s).
PY - 2022/12/5
Y1 - 2022/12/5
N2 - Chitosan is a natural polysaccharide that is nontoxic, easily chemically modified, and inhibits microbial activity. Chitosan is widely used for various purposes, one of which is as a membrane material in microencapsulation technology. This study aimed to get the optimum chitosan loading on the synthesis of CuO/TiO2 and encapsulated essential oils to improve antibacterial performance. CuO dopant was deposited on TiO2 by PAD (Photo Assisted Deposition) method to improve the photocatalytic performance. CuO/TiO2 was characterized by UV-Vis DRS. CuO/TiO2 and encapsulated essential oils were coated on the fabric. The bacteria disinfection ability on fabrics was evaluated using Escherichia coli bacteria. Then, the UV-Vis DRS results showed that the presence of CuO reduced the band-gap energy of TiO2. The antibacterial test results showed that modified fabric by CuO/TiO2 and essential oil encapsulated with 1,5% chitosan was the optimum sample, with Escherichia coli bacteria disinfection reached 50% in 120 minutes irradiation.
AB - Chitosan is a natural polysaccharide that is nontoxic, easily chemically modified, and inhibits microbial activity. Chitosan is widely used for various purposes, one of which is as a membrane material in microencapsulation technology. This study aimed to get the optimum chitosan loading on the synthesis of CuO/TiO2 and encapsulated essential oils to improve antibacterial performance. CuO dopant was deposited on TiO2 by PAD (Photo Assisted Deposition) method to improve the photocatalytic performance. CuO/TiO2 was characterized by UV-Vis DRS. CuO/TiO2 and encapsulated essential oils were coated on the fabric. The bacteria disinfection ability on fabrics was evaluated using Escherichia coli bacteria. Then, the UV-Vis DRS results showed that the presence of CuO reduced the band-gap energy of TiO2. The antibacterial test results showed that modified fabric by CuO/TiO2 and essential oil encapsulated with 1,5% chitosan was the optimum sample, with Escherichia coli bacteria disinfection reached 50% in 120 minutes irradiation.
UR - http://www.scopus.com/inward/record.url?scp=85144507165&partnerID=8YFLogxK
U2 - 10.1063/5.0113651
DO - 10.1063/5.0113651
M3 - Conference contribution
AN - SCOPUS:85144507165
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 -