In this paper the features of photoluminescent properties in gases of ZnO nanopowders including lasermodified and surface-doped with impurities of noble metals (Au, Ag, Pt) have been studied. The influence of laser modified and surface doping of ZnO nanopowders with impurities of noble metals on the adsorption ability have been studied and it was found that there is a growth in sensory sensitivity to gases. Established the tendency to reduce the adsorption ability ZnO nanopowders with decreasing size nanogranules to 40-60 nm. Physicochemical regularities of formation of adsorption surface electronic states in initial and doped nanopowders during adsorption of gases have been studied.
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