Controlled Hydrothermal Synthesis of K₂Ti₆O₁₃ Nanowires and their Photo-Electronic Response

Abstract:

A hydrothermal method using tetrabutyl titanate and KOH as reactants for synthesis of K₂Ti₆O₁₃ nanowires was developed, obtaining nanowires with a uniform diameter around 10nm. It is shown that the hydrothermal temperature and the KOH concentration have little influence in tuning the growth of K₂Ti₆O₁₃ nanowires. By changing the time for hydrothermal reaction, the length of K₂Ti₆O₁₃ nanowires can be controlled from several dozen of nanometers to several hundreds of nanometers. The as-prepared K₂Ti₆O₁₃ nanowires exhibit a wide and strong absorption band in the ultraviolet range (around 200~300 nm), and stable photocurrent of 0.5μA/cm², which might suggest potential applications in solar cell and water splitting.

• Periodical: Key Engineering Materials (Volume 814)
• Pages: 70-75
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.814.70
• Online since: July 2019
• Authors: Yu Xiong Chen*, Mu Wei Ji, Jin Wang
• Keywords: Hydrothermal Synthesis, K₂Ti₆O₁₃ Nanowires, Photo-Electronic Response

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