Microwave assisted polymer stabilized synthesis of silver nanoparticles and its application in the degradation of environmental pollutants

作者：Rastogi Pankaj Kumar; Ganesan Vellaichamy^*; Krishnamoorthi S

来源：Materials Science and Engineering B-Solid State Materials for Advanced Technology, 2012, 177(6): 456-461.

DOI：10.1016/j.mseb.2012.02.012

• Graft copolymer
• Microwave synthesis
• Silver nanoparticles
• Phenosafranine
• Catalytic reduction
• Nitrobenzene

Graft copolymers of polyacrylamide (PAM) and dextran (Dx) are synthesized by grafting PAM chains onto a Dx backbone (Dx-g-PAM) with ceric ion induced solution polymerization technique. Partial hydrolysis of Dx-g-PAM is carried out with sodium hydroxide solution to obtain HDx-g-PAM. To synthesize silver nanoparticles dispersed copolymer nano-composite (Ag-HDx-g-PAM), reduction of silver ions with HDx-g-PAM is carried out using microwave heating. The environmentally benign and biodegradable copolymer, HDx-g-PAM acts as both stabilizer and reducing agent. The copolymer nano-composite, Ag-HDx-g-PAM is characterized by FT-IR, transmission electron microscopy, scanning electron microscopy and optical spectroscopy. Further, the catalytic activity of Ag-HDx-g-PAM nano-composite towards the reduction of environmental pollutants like phenosafranine dye and aromatic nitro compounds are studied.

• 出版日期2012-4-15