Synthesis of silver nanoparticles deposited on silica by γ-irradiation and preparation of PE/Ag nano compound masterbatches

被引：8

作者：

Thi Kim Lan Nguyen ^{[1
]}

Thuy Ai Trinh Nguyen ^{[2
]}

Van Phu Dang ^{[1
]}

Ngoc Duy Nguyen ^{[1
]}

Anh Quoc Le ^{[1
]}

Quoc Hien Nguyen ^{[1
]}

机构：

[1] Vietnam Atom Energy Inst, Res & Dev Ctr Radiat Technol, Linh Xuan Ward, Ho Chi Minh City, Vietnam

[2] Vietnam Natl Univ Ho Chi Minh City, Ho Chi Minh City Univ Technol, Ho Chi Minh City, Vietnam

来源：

ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY | 2013年 / 4卷 / 04期

关键词：

silver nanoparticles; silica; gamma ray; polyethylene; ANTIBACTERIAL ACTIVITY; REDUCTION;

D O I：

10.1088/2043-6262/4/4/045004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Silver nanoparticles (AgNPs) deposited on silica were synthesized by gamma Co-60 irradiation of Ag+ dispersion in silica/ethanol/water mixture (9/80/20:w/v/v). The reduction of Ag+ is occurred by hydrated electron (e(aq)(-)) and hydrogen atom (H-center dot) generated during radiolysis of ethanol/water. The conversion doses (Ag+ -> Ag-0) were determined by UV-Vis spectroscopy. The synthesized AgNPs/silica were characterized by transmission electron microscopy (TEM) and x-ray diffraction (XRD), which showed the size of AgNPs to be in the range of 5-40 nm for Ag+ concentrations from 5 to 20 mM. Masterbatches of PE/AgNPs/silica compound with silver content from 250 to 1000 mg kg(-1) were also prepared. These masterbatches can be suitably used for various applications such as antimicrobial food containers and packing films, etc.

引用

页数：4

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