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Green synthesis of silver nanoparticles, decorated on graphene oxide nanosheets and their catalytic activity

机译:氧化石墨烯纳米片上装饰的纳米银粉的绿色合成及其催化活性

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In this study, we develop an inexpensive and green route for the synthesis of silver nanoparticles (AgNPs) using Picrasma quassioides bark aqueous extract as reducing and capping agent and also eco-friendly decorate graphene oxide (GO) nanosheets with AgNPs (GO-AgNPs). Green synthesized AgNPs and GO-AgNPs composites were characterized by UV-Visible spectroscopy, SEM-EDX, and TEM-SAED techniques. The resulting GO-AgNPs contained about 41.35% of Ag and the AgNPs size ranges 17.5-66.5 nm, and GO-AgNPs size ranges 10-49.5 nm. Moreover, the GO-AgNPs exhibited excellent catalytic activity towards the methylene blue (MB) in the presence of sodium borohydride (NaBH4) at room temperature. This catalytic reaction completed within 15 min. (C) 2015 Elsevier B.V. All rights reserved.
机译:在这项研究中,我们开发了一种廉价且绿色的路线,以使用四色Picsma quassioides树皮水提取物作为还原剂和加帽剂,以及用AgNPs(GO-AgNPs)进行生态友好的装饰氧化石墨烯(GO)纳米片,从而合成了银纳米颗粒(AgNPs)。 。通过紫外可见光谱,SEM-EDX和TEM-SAED技术对绿色合成的AgNPs和GO-AgNPs复合材料进行了表征。所得的GO-AgNPs包含约41.35%的Ag,并且AgNPs的尺寸范围为17.5-66.5nm,并且GO-AgNPs的尺寸范围为10-49.5nm。此外,在室温下,在硼氢化钠(NaBH4)存在下,GO-AgNP对亚甲基蓝(MB)表现出优异的催化活性。该催化反应在15分钟内完成。 (C)2015 Elsevier B.V.保留所有权利。

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