By Taicheng An, Huijun Zhao, Po Keung Wong

This e-book provides the most recent effects concerning photocatalytic inactivation/killing of microorganisms, that's a promising replacement disinfection process that produces much less or maybe no disinfection byproduct. The ebook is split into thirteen chapters, which introduce readers to the most recent advancements within the photocatalytic disinfection of microorganisms, study crucial photocatalytic (PC) and photoelectrocatalytic (PEC) disinfection experiences, and forecast and make techniques for the additional improvement of notebook and PEC disinfection. Bringing jointly contributions by way of a variety of top examine teams around the world, it deals a precious source for researchers and the alike, in addition to the final public.

Taicheng An, PhD, is Chair Professor and Director on the Institute of Environmental health and wellbeing and toxins regulate, institution of Environmental technological know-how and Engineering, Guangdong collage of expertise, Guangzhou, China.

Huijun Zhao, PhD, is Chair Professor and Director on the Centre for fresh setting and effort & Griffith university of setting, Griffith collage, Australia.

Po Keung Wong, PhD, is a Professor on the tuition of lifestyles Sciences, the chinese language college of Hong Kong, Hong Kong SAR, China.

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Extra resources for Advances in Photocatalytic Disinfection

Sample text

J Catal 204:163–168 2 Visible Light Photocatalysis of Natural Semiconducting Minerals 39 42. Rincon AG, Pulgarin C (2004) Effect of pH, inorganic ions, organic matter and H2O2 on E. coli K12 photocatalytic inactivation by TiO2 – implications in solar water disinfection. Appl Catal B Environ 51:283–302 43. Li XZ, Chen CC, Zhao JC (2001) Mechanism of photodecomposition of H2O2 on TiO2 surfaces under visible light irradiation. Langmuir 17:4118–4122 44. Morris D, Dixon R, Jones FH, Dou Y, Egdell RG, Downes SW, Beamson G (1997) Nature of band-gap states in V-doped TiO2 revealed by resonant photoemission.

Meanwhile, TiIV À OOH * injected an electron to the conduction band of TiO2, resulting in the generation of the conduction band electron and À Á À Á TiIV À • OOH (Eq. 5)), which further gave rise to TiIV À OH (Eq. 6)). Furthermore, the injected conduction band electrons could react with the adsorbed H2O2 to produce •OH radicals (Eq. 7)). Therefore, the formation of À Á the surface complex TiIV À OOH surf assisted the production of •OH in VL, thus improving the VL-induced photocatalytic activity.

Specially, some minerals containing iron, which makes the minerals become visible light responsive and magnetic, possess great potential for materials recycle. The acceptable performance with regard to photocatalytic activity and its superior properties enable them to be good candidates for cost-effective VLD photocatalytic treatment of toxic organics and infectious microbes in water and wastewater samples. This chapter presents an overview of current research activities that center on utilizing natural semiconductor minerals for water disinfection under visible light irradiation.

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