Optical techniques have been widely shown to be convenient, in-situ, and real time methods to investigate surface processes.[1] Compared with conventional surface probes, such as ion and electron spectroscopy, optical techniques are useful over a wide range of ambient conditions.[2-4] This study reports the adsorption and desorption of a model adsorbent representative of a volatile polar organi...

Introduction Adsorption is one of the most commonly used technologies to remove organic contaminants from aqueous solution in water treatment. The most conventional adsorbent is activated carbon (AC) – a substance which is extremely porous. However, in several recent studies, carbon nanotubes (CNTs) have been observed to be more efficient carbonaceous adsorbents than conventional ACs, with high...

Carbonaceous material (brown coal) modified by pyrolysis, activation, and enrichment in nitrogen, with two different factor reagents, have been used as adsorbent of phenol from liquid phase. Changes in the phenol content in the test solutions were monitored after subsequent intervals of adsorption with selected adsorbents prepared from organic materials. Significant effect of nitrogen present i...

In the last few years, a number of adsorption and ion exchange techniques have been developed to treat a wide range of domestic and industrial effluents containing heavy metals. Carbonaceous materials have been extensively used to remove a wide range of contaminants from wastewater, especially organic micropollutants, and to a lesser extent toxic heavy metals. Conventional granular activated ca...

This study presents the preparation and characterization of chemically activated carbonaceous materials obtained from waste tyres and the prepared adsorbent was applied for the adsorptive removal of Cd(II) and Pb(II) in the domestic wastewater samples. The activation efficiency of phosphoric acid (H3PO4) and hydrogen peroxide (H2O2) were evaluated and H2O2 was chosen as the appropriate activati...

A strategy for combined experimental and computational screening of candidate carbonaceous materials for capturing highly volatile nerve agents at ambient temperature using physisorption. Based on theoretical calculations of Henry constants and zero-coverage adsorption enthalpies for sarin and DMMP (its common stimulant) adsorbed in model slit-shaped carbon pores at 298 K, we found the followin...