In situ preparation of film and hydrogel bio-nanocomposites of chitosan/fluorescein-copper with catalytic activity
作者： César Saldías , David Díaz Díaz , Sebastián Bonardd , Cristián Soto-Marfull , Alexander Cordoba
DOI: 10.1016/J.CARBPOL.2017.10.018
关键词:
摘要: Copper nanoparticles were introduced into chitosan/fluorescein (Ch/f) film and hydrogel matrices by immersion of the respective matrix an aqueous solution containing precursor metallic salt further reduction in medium at 75°C for 3h under nitrogen (N2) atmosphere. TGA was used to estimate content Ch/f-Cu nanocomposites. The prepared nanocomposites proven be effective as catalytic materials methylene blue (MB) employing N2H4 reducing agent. In addition, rate constants reaction using catalysts determined. experimental results showed that activity order MB-N2H4 system depended strongly on type nanocomposite used. Finally, recyclability also studied.
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