One-pot green synthesis of Ag nanoparticles-decorated reduced graphene oxide for efficient nonenzymatic H2O2 biosensor

Abstract

(2013). One-pot green synthesis of Ag nanoparticles-decorated reduced graphene oxide for efficient nonenzymatic H2O2 biosensor. Materials Letters, 107 (15 September), 311-314.One-pot green synthesis of Ag nanoparticles-decorated reduced graphene oxide for efficient nonenzymatic H2O2 biosensor AbstractAg nanoparticles (AgNP) with an average size of 12 nm are successfully decorated on the reduced graphene oxide (rGO) sheets through a simple one-pot hydrothermal method using gallic acid as the reducing agent. This AgNP/rGO hybrid has been successfully applied in the catalytic performance toward the reduction of H2O2. The nonenzymatic sensor demonstrates a linear relationship in a wide concentration range of 0.05-5 mM (R=0.999), and a high sensitivity of 255 μA cm-2 mM-1 to the detection of H2O2.

Enhanced performance of polyimide hybrid membranes for benzene separation by incorporating three-dimensional silver–graphene oxide

“…This would decrease CAO with sp 3 -hybridized orbitals, thus the sp 2 /sp 3 ratio of carbon atoms increased in XPS profiles of C1s, which was consistent with the result in literature [34]. Moreover, the formation of Ag particles facilitated the transformation of carbon atoms from sp 3 -hybridized orbitals to sp 2 -hybridized orbitals, similar to reports in the literature [35].…”

“…S3. From this figure, the as-synthesized GO displayed a typical characteristic (0 0 2) peak at about 10.8° [34]. From XRD patterns of three Ag-GO samples, it could be found that the characteristic peak of Ag-GO samples showed obviously weaker than that of GO sample.…”

Biosynthesis of nanoparticles and silver nanoparticles

“…However, it is a chemically inactive element, but it can be reacted with nitric acid or hot concentrated sulfuric acid, forming soluble silver salts. It also possesses an excellent conductivity of heat and electricity, yet its applications in electrical industry have greatly been limited due to its greater cost (Wang et al 2013). As for metallic silver form, it is insoluble in water, but its metallic salts such as silver nitrate, AgNO 3 , and silver chloride, AgCl, are water-soluble.…”

A novel rapid synthesis of Fe2O3/graphene nanocomposite using ferrate(VI) and its application as a new kind of nanocomposite modified electrode as electrochemical sensor

“…Non-enzyme electrochemical sensors have been fabricated which are based on composite graphene with metal nanoparticles such Au [20] and Ag [21]. Also Hybridization of the graphene and Fe in the form of Fe 2 O 3 or Fe 3 O 4 hasbeen extensively studied for various applications such as H 2 O 2 detection because of abundant, low cost, and nontoxic material.…”