Keywords: Ag-TiO2/G, Cu-TiO2/G, E.coli disinfection.
Fitria Rahmawati, Triana Kusumaningsih, Anita M. Hapsari, Aris Hastuti*)
LPPM UNS, Penelitian, DP2M, Publikasi Internasional , 2009
TiO2 film was synthesized by means of the Chemical Bath Deposition (CBD) method from TiCl4 as a precursor and surfactant cetyl trimethyl ammonium bromide (CTAB) as a linking and assembling agent of titanium hydroxide network on a graphite substrate. Ag and Cu were loaded on TiO2 film by means best online casino of electrodeposition at various applied currents. Photoelectrochemical testing on the composite of Ag-TiO2/G and Cu-TiO2/G was used to define the composite for E.coli disinfection. Disinfection efficiency and the rate of disinfection of E.coli with Ag-TiO2/G as a catalyst was higher than Cu-TiO2/G in all disinfection methods including photocatalysis (PC), electrocatalysis (EC) and photoelectrocatalysis (PEC). Effective disinfection times of 24 hours (EDT24) and 48 hours (EDT48) were achieved in all methods, but these were not achieved in the EC method using Cu-TiO2/G.