in this study, the performance of electro-coagulation in combination with aluminum sacrificial anode, in removal of zinc and copper has been investigated. several parameters, such as pollutant concentration, ph, electrical potential, cod, turbidity and contact time were studied to achieve a higher removal capacity. variable concentrations (5-50-500 ppm) of zinc and copper solutions were prepare...

Modification of cellulose derivatives with citric acid leads to gain in sorption capacity towards metal ions, which has been many times applied for heavy sequestration. This work, the first time, investigated in-situ coating a carbon electrode acid-crosslinked derivatives. The occurrence crosslinking bonds was revealed using infrared spectroscopy and thermogravimetric analysis, while other feat...

Sol-gel and polymeric membrane electrodes, based on thiacalix[4]arene as a neutral carrier, weresuccessfully developed for the detection of VO2+ in aqueous solutions. The sol-gel and PVCmembrane electrodes exhibited linear response with Nernstian slopes of 29.3 and 28.4 mV perdecade, respectively, within the vanadyl ion concentration ranges from 1.0 × 10-6 to 1.0 × 10-1mol dm-3 and from 1.0 × 1...

background: electrocoagulation is a technique involving the electrolytic addition of coagulating metal ions directly from sacrificial electrodes. these ions coagulate with turbidity agents in the water, in a similar manner to the addition of coagulating chemicals such as alum and ferric chloride, and allow the easier removal of the pollutants. purpose of this study was to conduct experimental i...

objective: the current study was undertaken to examine the bactericide effects of atmospheric plasma produced by flat and comb electrodes on e.coli. materials and methods: dc (20 w) and ac (500 w) power supplies, flat and comb electrodes, insulator and oxygen gas were used to produce atmospheric plasma. bactericide effects of the atmospheric plasma were studied on e.coli on sterilized plate pla...

   Electrochemical performance of binary and ternary oxides composed of Ni, Co and Cu produced over a 3-dimensional substrate of vertically aligned carbon nano-tubes (VACNT) as electrodes for aqueous energy sources, is reported and compared in this paper. VACNTs were fabricated inside a DC-plasma enhanced chemical vapor deposition chamber and composite materials fabricated by thermal decomp...

Flexible screen-printed electrodes (SPE) were modified in a simple manner with different composite nanomaterials based on carbon allotropes, polymers, and metallic nanoparticles, for amperometric detection of nitrites soil. Multiwalled nanotubes (MWCNT), chitosan (CS), silver nanoparticles (AgNPs), 1,8-diaminonaphthalene (1,8-DAN), sol-gel (SG) matrix used modification the paste working electro...

Carbon materials, such as graphite and activated carbon, have been widely used electrodes in batteries electric double-layer capacitors (EDLCs). Graphene, which has an extremely thin sheet-like structure, is considered a fundamental carbon material. However, it was less investigated electrode material than carbons. This because graphene relatively new difficult to handle. using can enhance the ...

The hydrogen evolution reaction depends on the accumulation of electrons catalytic center to enable two-electron processes involved in water reduction. This work reports modification inexpensive nickel (Ni) composite electrodes with engineered semiconductor heterojunctions based earth-abundant transition metals that show superior generation activity presence a non-toxic electrolyte (K2CO3). is,...

The human brain possesses an exceptional information processing capability owing to the 3D and dense network architecture of numerous neurons synapses. Brain-inspired neuromorphic hardware can also benefit from architectures, such as high integration circuits acquisition highly complex dynamical systems. In this study, for future engineering, conductive polymer networks consisting poly(3,4-ethy...