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论文类型：期刊论文

发表时间：2017-06-01

发表刊物：JOURNAL OF ENVIRONMENTAL SCIENCES

收录刊物：SCIE、EI、PubMed

卷号：56

页面范围：79-86

ISSN号：1001-0742

关键字：Gold nanoparticles; Biosynthesis; Trichoderma; Azo dyes; Decolorization

摘要：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 550 nm, and transmission electron microscopy images revealed that the AuNPs were of varied shape with well dispersibility. The optimal conditions for AuNPs synthesis were HAuCl4 1.0 mmol/L, biomass 0.5 g and pH 7-11. 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. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.