Oxidation and EDX elemental mapping characterization of an ordered mesoporous carbon: Pb(II) and Cd(II) removal

Ammonium Persulfate Oxidized Activated Carbon Fibers: Analysis of Their Oxidation Debris Quantity and Their Use for Aqueous Pb(II) Batch and Column Experiments

“…A higher electronegativity means that they hold more strongly their electrons, so they are less polarizable, and thus can form a more stable complex with the carboxylate anion. Moreover, the bigger ionic radius of Pb(II) ( Table 4), could favor the possibility of it binding with distant acidic functional groups [18] since the distribution of them in the surface is probably not homogeneous. Table 3 Column adsorption-desorption data for sample 2.0 APS-30-6, 0.15 mol L -1 equimolar mixture of Pb(II), Cd(II) and Ni(II).…”

Stability analysis of functionalized mesoporous carbon materials in aqueous solution

“…So far mesoporous carbons have been functionalized via oxidation in order to introduce carboxyl groups [15,16], which can be covalently attached to their surface [17][18][19]. It has been recently reported that the introduction of organic functional groups can enhance the sorption properties of OMC [9,20]. As regards adsorption from liquid phase, proper characterization of adsorbent plays a significant role.…”

“…Parent and modified materials have been effective in removal of various dyes (such as methylene blue [1,2], methyl orange [3][4][5], chromotrope 2R [6]) and toxic heavy metal ions such as arsenic [7], mercury http://dx.doi.org/10.1016/j.cej.2016.01.060 1385-8947/Ó 2016 Elsevier B.V. All rights reserved. [8], lead and cadmium [9] from aqueous media. Additionally, recently mesoporous carbons have been also applied as reservoir for the storage of insoluble drugs [10] and amino acids [11].…”

The effect of surface modification of mesoporous carbons on Auramine-O dye removal from water

“…nitric acid, perchloric acid, ammonium persulfate and hydrogen peroxide. Wet oxidation is usually performed at temperatures 20-150°C (Lazaro et al 2007 Wu et al 2010;Deng et al 2010;Moreno-Tovar et al 2014;Tanaka et al 2015;Barczak et al 2015). Often nitric acid is used since its oxidizing properties can be controlled by adjusting the concentration and temperature (Lazaro et al 2007;Bazuła et al 2008;Wu et al 2010;Deng et al 2010).…”