Influence of silver precursors on growth of metallic nanoparticles in heavy metal oxide glasses

Química Nova

Donoso, José Pedro¹  Magon, Claudio J.¹  Silva, Igor D. A.¹  Universidade de São Paulo, São Carlos, Brasil¹  Universidade Federal de São Carlos, São Carlos, Brasil¹  Montesso, Murilo¹  Nalin, Marcelo¹  Valle, Paula S.¹ 

关键词: glasses;    glass-ceramics;    nanoparticles.;   

DOI  :  10.1590/S0100-40422013000700008

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown