The invention provides
tin-doped layered porous nanometer
zinc oxide. The
tin-doped layered porous nanometer
zinc oxide is characterized in that the
tin-doped layered porous nanometer
zinc oxide is of a three-dimensional porous
layered structure formed by
crystal particles and nanopores on the whole, the thickness of each layer of tin-doped layered porous nanometer zinc oxide is about 10-20nm, the length of each layer of tin-doped layered porous nanometer zinc oxide is about 0.8-1.2 micrometers, the width of each layer of tin-doped layered porous nanometer zinc oxide is about 300-700nm, and the
tin doping content is 0.1-22.0at.%. A typical preparation method of the tin-doped layered porous nanometer zinc oxide comprises the steps of weighing zinc salt, dissolving the zinc salt by adding water, adding stannous
chloride according to proportions, stirring so as to form white
emulsion, slowly adding polyhydric alcohols (such as
ethylene glycol,
glycerol, 1,2-
propylene glycol, 1,4-
butanediol) till forming semitransparent
light white mixed liquid, transferring the mixed liquid to a reaction kettle, sealing the reaction kettle, carrying out
thermal reaction by adding hot water, then carrying out
solid-liquid separation on a
reaction product after the reaction, and washing and
drying the
solid product. The tin-doped layered porous nanometer zinc oxide provided by the invention has excellent gas-sensitive property for volatile organic compounds, and has the advantages of simple method and low cost.