Application of Photocatalytic Nanomaterials in Prevention from Sphaerothecaf uliginea In Vivo

Abstract:

This study was conducted to investigate the efficiency of TiO2 photocatalytic nanomaterial as a novel environment-friendly disinfectant to control plant fungal diseases (Sphaerothecaf uliginea) by its photochemical sterilization ability in cucumber plants. Anatase nano-TiO2 sol, a neutral, viscous aqueous colloid of 1.4% TiO2, was synthesized by sol-gel method. Control efficiencies of nano-TiO2 sol in preventing from powdery mildew were measured by field experimental method with cucumber seedling naturally infected Sphaerothecaf uliginea. Results showed that spraying certain content of nano-TiO2 sol could form continuous and stable antibacterial films on blade surfaces which could not only significantly reduce lesion areas, disease incidences and disease indexes of powdery mildew but also make the leaves turn much greener. It was initially confirmed that nano-TiO2 sol could effectively delay and inhibit the development and pervasion of cucumber powdery mildew. These results indicate that nano-TiO2 sol can be developed as environment-friendly fungicide in preventing from plant disease developments.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 255-260
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.255
• Online since: December 2012
• Authors: Ping Zhang, Ru Gang Zhong, Hai Xin Cui
• Keywords: Nanomaterial, Photocatalysis, Prevention, Sphaerothecaf uliginea, TiO₂

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