Antibacterial Inactivation of Escherichia coli after TiO2-Fe3O4-Bentonite Photocatalytic Treatment
| Main Authors: | Widi, Restu Kartiko , Savitri, Emma , Budhyantoro, Arief |
|---|---|
| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
Center for Promoting Ideas (CPI)
, 2017
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| Subjects: | |
| Online Access: |
http://repository.ubaya.ac.id/33491/2/Antibacterial%20Inactivation%20Abstract.pdf http://repository.ubaya.ac.id/33491/ |
Daftar Isi:
- TiO2-Fe3O4–Bentonite photocatalytic material has been developed to inactivate of Escherichia coli. The photocatalytic inactivation of Escherichia coli was conducted in a reactor under ultraviolet (325 nm) exposing. The photocatalytic degradation were observed for 5 hours to determine the optimum initial bacteria concentration, intensity of UV light and also photocatalyst concentration. The inactivation kinetic was approached by Chick-Watson and Hom kinetic models. The colonies calculations were conducted by Total Plate Count. The optimum condition was achieved for 300 minutes process to reach 7 bacterial log reduction units for an average bacterial inoculum size of 3.8 × 104 CFU/ml. The inactivation kinetic of Escherichia coli using TiO2-Fe3O4-Bentonite photocatalytic material system satisfactorily obeyed the Hom kinetic model.