Influência dos precursores de prata no crescimento de nanopartículas metálicas em vidros óxidos de metais pesados

Química Nova

Paula S. Valle²  Murilo Montesso²  Marcelo Nalin²  José Pedro Donoso¹  Igor D. A. Silva¹  Claudio J. Magon¹ 

[1] ,Universidade Federal de São Carlos Departamento de Química São Carlos SP ,Brasil

关键词: glasses;    glass-ceramics;    nanoparticles;   

DOI  :  10.1590/S0100-40422013000700008

来源: SciELO

【 摘 要 】

In this work we report a systematic study on the influence of the chemical nature of silver precursors on the formation of glass-ceramics from oxide glasses. Thermal, structural and optical properties were analyzed as a function of the glass composition. Controlled crystallization was achieved by thermal treatment of the samples above glass transition. The influence of time of treatment on both nanoparticle growth and optical properties of the samples was studied by transmission electron microscopy and UV-Vis spectroscopy, respectively. Results showed that only glasses containing AgCl and AgNO3 led to glass-ceramics growth after thermal treatment.

【 授权许可】

CC BY-NC   
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