title: TiO2-based photocatalytic disinfection of microbes in aqueous media: A review.
abstract: The TiO2based photocatalyst has great potential for the disinfection/inactivation of harmful pathogens (such as E.coli in aqueous media) along with its well-known usefulness on various chemical pollutants. The disinfection property of TiO2is primarily attributed to surface generation of reactive oxygen species (ROS) as well as free metal ions formation. Furthermore, its disinfection capacity and overall performance can be significantly improved through modifications of the TiO2material. In this review, we provide a brief survey on the effect of various TiO2materials in the disinfection of a wide range of environmentally harmful microbial pathogens (e.g., bacteria, fungi, algae, and viruses) in aqueous media. The influencing factors (such as reactor design, water chemistry, and TiO2modifications) of such processes are discussed along with the mechanisms of such disinfection. It is believed that the combined application of disinfection and decontamination will greatly enhance the utilization of TiO2photocatalyst as a potential alternative to conventional methods of water purification.
authors.affiliation: Program in Environmental Science and Engineering, University of Texas El Paso, El Paso, TX 799038, USA.
authors.forename: P Venkata
authors.initials: PV
authors.lastname: Laxma Reddy
authors.affiliation: Department of Pharmacology, Kamineni Institute of Medical Sciences, Dr. NTRUHS, Vijayawada, Andhra Pradesh 520008, India.
authors.forename: Beluri
authors.initials: B
authors.lastname: Kavitha
authors.affiliation: School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
authors.forename: Police Anil
authors.initials: PA
authors.lastname: Kumar Reddy
authors.affiliation: Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea. Electronic address: kkim61@hanyang.ac.kr.
authors.forename: Ki-Hyun
authors.initials: KH
authors.lastname: Kim
mesh_terms: D001419:Bacteria / Q000187:drug effects; D002384:Catalysis; D000458:Cyanobacteria / Q000187:drug effects; D004203:Disinfection / Q000379:methods*; D005658:Fungi / Q000187:drug effects; D055668:Photochemical Processes; D014025:Titanium / Q000737:chemistry*; D014780:Viruses / Q000187:drug effects; D014871:Water Microbiology; D018508:Water Purification / Q000379:methods*
chemical_list: D014025:Titanium
keywords: E.coli; Photocatalysis; TiO(2); Water disinfection