@article {17518, title = {Photocatalytic inactivation of E. coli using nano-size bismuth oxyiodide photocatalysts under visible light}, year = {2015}, abstract = {

Bismuth oxyiodide photocatalyst has been prepared via solvothermal method at 443 K with reaction time
13 h using ethylene glycol (BiOI-EG) and hydrothermal method at 353 K with reaction time 5 h using
distilled water (BiOI-DW). The effect of difference in the solvent, temperature and reaction time plays a
key role to the evolution on the morphologies and performances of BiOI samples. The materials obtained
were characterized by different techniques. Although both prepared catalysts were of high purity and
have the same calculated band gap energy (1.9 eV) but BiOI synthesized with a Teflon-lined stainlesssteel
autoclave using ethylene glycol exhibits excellent antimicrobial activity under visible-light than
BiOI synthesized by water bath using distilled water. This can be attributed to high surface area of BiOI-EG
(410 m2/g) compared with that of BiOI-DW (296.6 m2/g) and different in the morphology of both
prepared photocatalyst. Also, the experimental results showed that the photocatalytic inactivation
efficiency of Escherichia coli strain (105 CFU/mL) using 0.75 g/L BiOI-EG was almost totally removed within
45 min irradiation, and significantly higher than that of BiOI-DW under visible light.

}, url = {http://dx.doi.org/10.1016/j.jece.2015.09.017}, author = {Tarek S. Jamil and Eman S. Mansor and Mohamed Azab El-Liethy} }