In this study focused on the one-dimensional ZnO nanord optical properties and its application, which proposed a simple, low production methods and to explore in photocatalytic and dye-sensitized solar cell applications.Hydrothermal growth of ZnO nanorods process with a sample,low-pollution,no expensive equipment,etc.,and can help concentration,process temperature,process time and control the pH value of ZnO nanorod surface morphology, by field emission electron microscope observation, the preparation of the institute of ZnO nanorod are free to control the diameter of 70~500 nm between the ZnO nanorod are free to control the length of 2700~3400 nm in between.Research carried out to add nanosilver surface modification, the use of methylene blue organic substance in wastewater simulation test of ZnO of decomposition efficiency,when the Ag nanoparticle size was 15 nm, the Ag/ZnO nanorod in the ultra-violet light after 6 hours with more than 99 % decomposition rate than the modification without a ZnO, more than 50% of the upgrade.
