Abstract
Fresh orange peel extract was used as a reducing agent and a stabilizer to synthesize rGO loaded with Ag nanoparticles (rGO-Ag), which can be used as an antibacterial nano-filler to fabricate antibacterial food packaging materials. The effects of reaction time, temperature and AgNO3 concentration on the reaction rate, average particle size and dispersion stability of rGO-Ag were investigated by single factor experiments. The orthogonal experiment was conducted to optimize the reaction conditions using the average particle size of rGO-Ag as an indicator. Results revealed that extending the reaction time, increasing reaction temperature and AgNO3 concentration improved the reaction rate and reduced the average particle size of rGO-Ag. However, these factors had little effect on the stability of rGO-Ag dispersions. The effects of these factors on the average particle size of rGO-Ag from large to small was as follows: reaction temperature>reaction time>AgNO3 concentration. The optimum conditions for rGO-Ag synthesis were: reaction time 4 h, reaction temperature 100 ℃, and AgNO3 concentration 25 mmol/L. TEM, Raman and FTIR results revealed that AgNPs with an average particle size of 21 nm were successfully loaded onto rGO sheets.
Publication Date
6-28-2019
First Page
114
Last Page
119
DOI
10.13652/j.issn.1003-5788.2019.06.021
Recommended Citation
Dongmei, XIE; Dan, XU; and Dan, REN
(2019)
"Synthesis of graphene loaded with siver nanoparticles using orange peel extract,"
Food and Machinery: Vol. 35:
Iss.
6, Article 21.
DOI: 10.13652/j.issn.1003-5788.2019.06.021
Available at:
https://www.ifoodmm.cn/journal/vol35/iss6/21
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