Photoassisted remediation of toxic chemical warfare agents using titania nanomaterials

Introduction Remediation of environment polluted with toxic chemical warfare agents (CWA) is a challenging task for authorities who deal with public health and environmental safety. Abnormal health symptoms appear when the human beings are exposed to these hazardous chemicals. Decontamination of surface or environment tainted with these toxic chemicals is the main job we have to do, to avoid health hazards. This can be achieved by application of decontaminants on the surface or environment. Application of nanosized titania photocatalysts as decontaminant is interesting, as powder of the same can be sprayed on contaminated surfaces or added to contaminated environment to assist decontamination by adsorptive removal of toxic chemicals. After adsorption, they participate in photocatalytic reactions and assist decontamination of toxic chemical in the presence of light radiation.