Colorimetric detection of Ag ions with graphene oxide in dimethylformamide

Abstract

We report on the selective and sensitive colorimetric detection of Ag+ in a dimethylformamide (DMF) solution in the presence of graphene oxide based on the surface plasmon resonance absorption of Ag nanoparticles (NPs).

High-Value Utilization of Lignin to Synthesize Ag Nanoparticles with Detection Capacity For Hg2+

“…With the development of nanotechnology, many approaches have been used for the synthesis of AgNPs, including UV irradiation reduction, γ irradiation, thermal decomposition, chemical reduction, and laser irradiation. − Chemical reduction method is one of the most commonly used methods. However, many chemical reduction methods require reducing agents like sodium borohydride and hydrazine hydrate and stabilizing agents like sodium citrate and surfactant, and all are harmful to environment.…”

Structure and Photocatalytic Property of a Cobalt(II) Compound Containing Pentanuclear [Co5(mtpo)2(μ3-OH)2(μ2-OH)2(COO)3] Clusters as Building Subunits

“…Considering that many Co II ‐based MOFs exhibit excellent photocatalytic properties for degradation of organic dyes, such as orange G (OG), rhodamine B (RhB), methylene blue (MB), methyl violet (MV), and so on, in this work, the photocatalytic properties for compound 1 were studied, and methylene blue (MB) was chosen as a model pollutant in aqueous to evaluate the photocatalytic performance of compound 1 . In a typical experiment, 50 mg powder samples of compound 1 was added to 50 mL MB aqueous solution (15 mg · L –1 ).…”

A Facile Synthesis of La2O3/GO Nanocomposites in N,N-Dimethylformamide with High Dye Degradation Efficiency

“…Some white solid could also be obtained in DMF without GO; however, most of the particles were aggregated according to the TEM images ( Figure S1). The result suggested that GO could not only be used as a template or substrate with a large surface area for anchoring nanomaterials, but also prohibit the aggregation of nanoparticles [4]. Moreover, the component of the solid was studied by XRD.…”

“…Therefore, many kinds of GO-nanoparticle composites have been prepared by decorating GO with the nanoparticles such as Au [2], Pt [3], Ag [4], Ni [5], Fe 3 O 4 [6], MnO 2 [7], NiO [8], and TiO 2 [9]. Up to now, however, GO nanocomposites based on the hybridization with rare earth oxides are relatively rare.…”