Metal nanoparticle microbial production

The use of noble metal NPs in water purification for applications other than microbial disinfection was first reported in 2003. The chemistry reported can be summarized as reductive de-halogenation of chlorocarbons (halocarbons in general) in water solutions occurring at room temperature over silver nanoparticles wherein the C-Cl bond is cleaved with the formation of AgCl. UV-visible spectroscopic analysis of this reactivity is shown in Fig. 8A. A series of chemical events occur on the nanoparticle and amorphous carbon is observed as a product. This chemistry was soon extended to halogenated pesticides at high efficiency.A concentration of 50 ppb chlorpyrifos was reduced to less than 0.5 ppb upon passing over a... 

---