Herein, we demonstrate the first use of a reduced graphene oxide (rGO)-organic dye nanoswitch for the label-free, sensitive and selective detection of Hg(2+) using bifunctional rGO as an effective nanoquencher and highly selective nanosorbent. Moreover, a reversible on-off INHIBIT rGO logic gate based on a cysteine-Hg(2+) system has also been designed.

nanoporous graphene which is used as nanosorbent was synthesized by chemical vapor deposition method via porous zinc oxide nanocatalyst. the reaction was carried out using methane as the carbon source and hydrogen as the carrier gas in a ratio of 4:1 at the temperature ranging 900-1050°c for 2-50 min. the product was characterized by scanning electron microscopy, transmission electron microscop...

In this work for the first time, Fe3O4@SiO2 core-shell nanoparticles functionalized with isatin groups as a magnetic nanosorbent was applied for the simultaneous extraction of trace amounts of cadmium (II). The characterization of this nanosorbentwas studied using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The effect of seve...

This paper investigates the potential of nano zero valent iron impregnated cashew nut shell nanoparticles (NZVI-CNS) as an effective adsorbent for the removal of phenol from aqueous solution. The effect of initial pH, adsorbent dosage, contact time and temperature were determined by batch adsorption experiments. Langmuir and Freundlich adsorption isotherm models were applied to the adsorption e...

Removing organic dyes from contaminated wastewater resulting industrial effluents with a cost-effective approach addresses major global challenge. The adsorption technique onto carbon-based materials and metal oxide is one of the most effective dye removal procedures. current work aimed to evaluate application calcium oxide-doped carbon nitride nanostructures (CaO-g-C3N4) eliminate basic fuchsi...

Improving the quality of natural water purification is one priority areas in research conducted by scientific communities field ecology. At same time, task to achieve optimal efficiency technological process at a low cost. The solution, this case, use materials necessary for cleaning, particular, sorbents from raw materials, including agricultural waste. present, sufficient number results have ...

Ca-doped magnesium oxide nanosorbent has been prepared by sol-gel in the presence of gum arabic extract and assessed for removal cobalt ions (Co (II)) from aqueous media. X-ray diffraction analysis indicates formation MgO CaO composites with a mean crystallite size 6 nm having large surface area 50 m2/g. Scanning transmission electron microscopy observations reveal spherical-shaped particles at...