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 isola...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 Trichoderrna 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 HAuC14 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 ofbio-AuNPs for azo dye decolorization.展开更多
基金supported by the National Natural Science Foundation of China (Nos. 21176040 and 51508068)the Program for New Century Excellent Talents in University (No. NCET-13-0077)+1 种基金the Fundamental Research Funds for the Central Universities (No. DUT14YQ107)the Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (No. ESK201529)
文摘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 Trichoderrna 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 HAuC14 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 ofbio-AuNPs for azo dye decolorization.
