Qu Yuanyuan, Shen Wenli, Pei Xiaofang, Ma Fang, You Shengnan, Li Shuzhen, Wang Jingwei, Zhou Jiti
State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
J Environ Sci (China). 2017 Jun;56:79-86. doi: 10.1016/j.jes.2016.09.007. Epub 2016 Oct 15.
Developing an eco-friendly approach for metallic nanoparticles synthesis is important in current nanotechnology research. In this study, green synthesis of gold nanoparticles (AuNPs) was carried out by a newly isolated strain Trichoderma sp. WL-Go. UV-vis spectra of AuNPs showed a surface plasmon resonance peak at 550nm, and transmission electron microscopy images revealed that the AuNPs were of varied shape with well dispersibility. The optimal conditions for AuNPs synthesis were HAuCl 1.0mmol/L, biomass 0.5g and pH7-11. Moreover, the bio-AuNPs could efficiently catalyze the decolorization of various azo dyes. This research provided a new microbial resource candidate for green synthesis of AuNPs and demonstrated the potential application of bio-AuNPs for azo dye decolorization.
开发一种生态友好型的金属纳米颗粒合成方法在当前纳米技术研究中至关重要。在本研究中，通过新分离的木霉菌株Trichoderma sp. WL-Go进行了金纳米颗粒（AuNPs）的绿色合成。AuNPs的紫外可见光谱在550nm处显示出表面等离子体共振峰，透射电子显微镜图像显示AuNPs形状各异且分散性良好。AuNPs合成的最佳条件为HAuCl 1.0mmol/L、生物量0.5g和pH7 - 11。此外，生物AuNPs能够有效催化各种偶氮染料的脱色。本研究为AuNPs的绿色合成提供了一种新的微生物资源候选物，并证明了生物AuNPs在偶氮染料脱色方面的潜在应用。
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