Approximately 1 nm-sized artificial tunnels in wrinkled graphene-graphene oxide composite membranes for efficient dye/dye separation and dye desalination

Reduced Graphene Oxide as a Platform for the Immobilization of Amino-Cyclodextrins

“…The spectrum of GO/GCE was similar to that reported previously for graphene oxide [1] and was fitted to three different contributions at 284.6 eV, 286.6 eV, and 288.1 eV. These contributions correspond to the C-C, C-O/C-OH, and C=O bonds, respectively [1]. These three contributions were also present in the spectra of the rest of the samples, but showed different relative spectral areas.…”

“…Figure 4 collects the C 1s XPS spectra recorded from the different samples. The spectrum of GO/GCE was similar to that reported previously for graphene oxide [1] and was fitted to three different contributions at 284.6 eV, 286.6 eV, and 288.1 eV. These contributions correspond to the C-C, C-O/C-OH, and C=O bonds, respectively [1].…”

“…Graphene is an allotrope of carbon constituted by a two-dimensional monolayer of carbon atoms forming a hexagonal lattice. Graphene and its derivatives (graphene oxide and reduced graphene oxide) have remarkable properties and they have been proposed for multiple applications such as adsorbents for dye separation [1], anti-corrosion coatings [2], drug delivery [3], desalination [4], and as a catalyst for hydrogen generation [5], among others. They exhibit a high specific area, abundant functional groups and sp 2 hybridization, showing a high affinity to aromatic compounds.…”

Active and Intelligent Packaging: A Review of the Possible Application of Cyclodextrins in Food Storage and Safety Indicators

“…GCE has been used for different applications, including adsorbents for dye separation. In addition, they present excellent electrical and mechanical properties, which provide stability to the compounds that are applied to them [160]. Chen et al designed a conductive molecularly imprinted gel (CMIG) using cationic guar gum (CGG), chitosan β-CD, and multiwalled carbon nanotubes (MWCNTs) by magnetic stirring in a single vessel at low temperature.…”

Efficient photocatalytic degradation of ultra-high concentration printing and dyeing wastewater using a SiO2/GCN nanocomposite

“…Wastewater treatment is required in order to control the printing and dyeing wastewater produced in printing and dyeing factories. In general, the following methods have been used to remove printing and dyeing wastewater: biological treatment (such as the activated sludge method 5 and anaerobic aerobic method 6 ), physicochemical treatment methods (such as adsorption 7 ), advanced oxidation technology (such as photocatalysis, 8 ozone catalysis, 9 piezocatalysis, 10 and Fenton oxidation 11 ), and membrane separation technology (such as reverse osmosis, 12 ultrafiltration, 13 and microfiltration 14 ). Photocatalytic technology is the most promising, cleanest, and energy-saving technology amongst these methods, and has attracted a lot of attention from scholars at home and abroad.…”