The Benefits of Using Saccharose for Photocatalytic Water Disinfection.

In this work, the characteristics of saccharose (sucrose)-modified TiO 2 (C/TiO 2 ) photocatalysts obtained using a hydrothermal method at low temperature (100 °C) are presented. The influence of C/TiO 2 on survivability and enzyme activity (catalase and superoxide dismutase) of Gram-negative bacteria Escherichia coli (ATCC 29425) and Gram-positive bacteria Staphylococcus epidermidis (ATCC 49461) under UV-A and artificial solar light (ASL) were examined. The obtained TiO 2 -1%-S-100 photocatalysts were capable of total E. coli and S. epidermidis inactivation under ASL irradiation in less than 1 h. In addition, the impacts of sugars on the photocatalytic activity and disinfection performance are discussed.