Synthesis and characterization of self-assemble ZnO nano-film and its influence on anti-light discoloration properties of bamboo

ZnO nanostructured thin films formation in situ on the surface of bamboo via a low temperature aqueous solution route is studied. The effects of immersion time in seed solution, growth solution concentration, growth time, and pH of seed solution on ZnO morphology are also discussed. Field emission scanning electron microscopy is used to examine the surface morphology of the samples and X-ray powder diffraction is used to detect crystal structure and crystallinity. Results reveal that: prolonging the immersion time, the morphology of the films transforms from grain-net-line-cylinder-to-hexahedron; increasing the growth solution concentration, the compactness of surface films is enhanced as well as there is an enlargement on the size of the line, hexadron, cylinder; and self-assembled ZnO films is a promising material for bamboo protection, and prevents wood material from discoloration, degradation, and ageing when exposed to sunlight.