Preparation and characterization of a novel KOH activated graphite felt cathode for the electro-Fenton process

Ultrasonic exfoliation of carbon fiber: electroanalytical perspectives

“…Carbon cloth Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s1080 0-019-01379 -y) contains supplementary material, which is available to authorized users. electrodes, in particular, have risen to considerable prominence in recent years as they typically consist of an interpenetrating fiber matrix whose macro porosity and extensive surface area have been found to be highly advantageous in energy applications [2][3][4][5][6] and industrial water treatment [7][8][9][10]. Such electrode geometries are also finding favour within the various biosensing communities where the fiber network can serve as a host for bacterial species [4,11,12] or a framework for the immobilisation of enzymes [13,14].…”

“…It must be noted that many of the chemical alterations to the carbon surface can also dramatically improve the performance and versatility of the carbon fibers when applied as electrode materials. While a large range of treatments have been investigated [19,20], the end outcome is normally the oxidation of the surface to increase the variety of carbonoxygen functional groups and their respective concentrations [8,[26][27][28]. A summary of the different types of oxygen functionality that can arise as a consequence of surface oxidation is highlighted in Fig.…”

“…The nitrogen component will be minor in unmodified fibers with sp 2 carbon being the predominant species and, it is the oxidative destruction of the latter that gives rise to the carbon-oxygen functionality. A large number of treatment options have been pursued [19], such as electrochemical oxidation (anodisation) which is well established as an effective technique for the generation of oxygen functional groups as well as enabling the etching of the surface [8,[26][27][28]. It is now commonplace for carbon fiber electrodes, whether discrete fibers, bundles, mats or cloths, to be electrochemically treated prior to further application in order to improve electron transfer kinetics [11,12,28].…”

Efficient and Stable Carbon-coated Nickel Foam Cathodes for the Electro-Fenton Process

“…4. For the sake of comparison, the traditional graphite based gas diffusion electrode (GDE) was also prepared as previously described in details [43] and investigated. It can be clearly seen that NF contained samples exhibit much better H 2 O 2 accumulation performance than the graphite GDE (11.3 mg L À1 ).…”

Effective monitoring of the electro-Fenton degradation of phenolic derivatives by differential pulse voltammetry on multi-walled-carbon nanotubes modified screen-printed carbon electrodes

“…Recently, advanced oxidation processes (AOPs), which can produce oxidizing hydroxyl radicals, have probed to be an efficient procedure for the treatment of different organic pollutants such as phenolic derivates [10,11]. Among them, electro-Fenton have received great attention for the removal of harmful organics in waters due to the advantages of this treatment such as continuous electrogeneration of H 2 O 2 , a short reaction time and Fe 2+ generation by direct reduction of Fe 3+ on the cathode [12,13]. One of the advantages of the foam materials is their high reaction surface.…”