Green synthesis of gold nanoparticles using palm oil mill effluent (POME): A low-cost and eco-friendly viable approach

被引:172
作者
Gan, Pei Pei [1 ]
Ng, Shi Han [1 ]
Huang, Yan [1 ]
Li, Sam Fong Yau [1 ]
机构
[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
基金
新加坡国家研究基金会;
关键词
Palm oil mill effluent; Biosynthesis; Gold nanoparticles; Bioreduction; Agro waste; SILVER NANOPARTICLES; BIOSYNTHESIS; AG; TEMPERATURE;
D O I
10.1016/j.biortech.2012.01.015
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The present study reports the synthesis of gold nanoparticles (AuNps) from gold precursor using palm oil mill effluent (POME) without adding external surfactant, capping agent or template. The biosynthesized AuNps were characterized by using UV-vis spectroscopy, transmission electron microscopy (TEM). X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). According to the image analysis performed on a representative TEM micrograph by counting 258 particles, the obtained AuNps are predominantly spherical with an average size of 18.75 +/- 5.96 nm. In addition, some triangular and hexagonal nanoparticles were also observed. The influence of various reaction parameters such as reaction pH, concentration of gold precursor and interaction time to the morphology and size of biosynthesized AuNps was investigated. This study shows the feasibility of using agro waste material for the biosynthesis of AuNps which is potentially more scalable and economic due to its lower cost. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:132 / 135
页数:4
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