Oxygen functional groups were removed from activated carbon in order to improve the electrochemical supercapacitor performance. Commercially available and surface-modified activated carbon electrodes were compared in non-aqueous electrolyte, which allowed stable experimentation at high voltages. N2-adsorption, FT-IR, and elemental analyzer were used to characterize the surface areas, pore volum...

In a previous work we studied the influence of heat treatment on the molecular sieve properties of activated carbons prepared by chemical activation of lignin [1]. The thermal treatment modified the porous structure of the activated carbons, giving rise to solids that separate C6H6 from C6H12, CO2 from CH4 and O2 from N2 with a relative high selectivity. However, the heat treatment drastically ...

A novel two-step chemical activation technique, consisting of carbonization and phosphoric acid activation in sequence, was investigated for activated carbon production from waste wood pallets in Hong Kong. A widely used commercial activated carbon, Calgon Filtrasorb® 400 (F400), was studied in parallel for comparison. The physical properties and surface chemistry of the activated carbon were d...

Carbon-based materials. including carbon nanotubes, graphene, and activated carbon, are among the most effective materials for pharmaceutical components removal from water. Despite severe effect of micropollutants in aquatic environments effectiveness carbon-based composites water treatment, only a few studies has reviewed components. with special properties like tunable surface functions, abun...

The main problem in brackish water treatment is the high salinity level. Activated carbon known to have a good ability clean treatment, so this study uses activated as medium. There been several previous studies reduce and chloride water, research using was able remove produce but reduction still did not that met expected quality standards of water. Therefore, study, decreasing will use coconut...

Granular activated carbon (GAC) adsorption has found wide application as a treatment process for the removal of natural organic matter, small compounds (e.g. pesticides), inorganic heavy metals), taste and odour in water over many years. During GAC operation, contaminants are adsorbed becomes progressively saturated time, requiring periodic regeneration media to restore its capacity. Chemical b...