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Effects of reducibility of graphene oxide nanosheets on preparation of AgNPs/GO nanocomposites and their electrocatalytic performance
China. (College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, People’s Republic of China)
China. (College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, People’s Republic of China)
China. (College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, People’s Republic of China)
China. (College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, People’s Republic of China)
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2015 (English)In: Journal of nanoparticle research, ISSN 1388-0764, E-ISSN 1572-896X, Vol. 17, no 12, p. 1-10, article id 489Article in journal (Refereed) Published
Abstract [en]

Silver nanoparticles/graphene oxide (AgNPs/GO) nanocomposites were prepared in a solution of AgNO3 and GO. The GO serves not only as a reductant but also as a substrate to support the as-reduced silver nanoparticles. The reducibility of GO was investigated by analyzing the influence factors such as pH, duration, the reaction temperature, and the weight ratio of AgNO3 and GO in the AgNP/GO nanocomposite mixture, which were evaluated by the UV–vis absorption spectroscopy. The results demonstrated that Ag nanoparticles with an average diameter of 5–10 nm were uniformly dispersed on the surface of GO nanosheets under the optimum synthesis conditions of pH between 8 and 11, weight ratio of AgNO3 and GO between 55 % and 60 %, and at 80 °C for 6 h. Moreover, the obtained AgNPs/GO nanocomposites exhibit good electrocatalytic activity for the reduction of p-nitrophenol to 4-(hydroxyamino) phenol.

Place, publisher, year, edition, pages
2015. Vol. 17, no 12, p. 1-10, article id 489
Keywords [en]
Silver nanoparticles/graphene oxide; Reducibility; Electrocatalytic; p-Nitrophenol
National Category
Physical Chemistry
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:kau:diva-39042DOI: 10.1007/s11051-015-3300-2ISI: 000367000900002OAI: oai:DiVA.org:kau-39042DiVA, id: diva2:896083
Available from: 2016-01-20 Created: 2016-01-15 Last updated: 2019-07-10Bibliographically approved

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