Preparation and properties of porous carbon material containing magnesium oxide

Abstract

Porous carbons loaded with magnesium oxide were prepared through one-step process. Poly(ethylene terephthalate) and natural magnesite were used as carbon source and MgO precursor, respectively. An impact of a temperature and relative amounts of raw components used for preparations on the textural parameters of resulting hybrid materials is presented and discussed. As found, pore structure parameters tend to decrease along with MgO loading and temperature used during preparation process. Micropore area is the parameter being reduced primarily.

MgO-loaded porous carbon for carbon dioxide sorption: Study on cyclic sorption–regeneration

“…Instead, the XRD pattern measured for the CO 2 -saturated magnesite-based sample revealed presence of the same phases, i.e. MgO and natural contaminants, as already confirmed (Przepiórski et al, 2011) in the raw material. Since no new phases were detected, the CO 2 uptake must be due to other phenomena.…”

“…The actual phase composition of the magnesite was reported by us elsewhere (Przepiórski et al, 2011). Apart from dominating MgCO 3 , the magnesite contained dolomite, silica, and iron (II) sulfide.…”

“…Besides impregnation, such materials can be successfully obtained through a proper treatment of suitable mixture of both a carbon precursor and the chemical. Recently we reported on preparation of MgO-loaded porous carbon materials (Przepiórski et al, 2011). These hybrid sorbents were obtained from mixtures of poly(ethylene terephthalate) and natural magnesite.…”

MgO/CaO-loaded porous carbons for carbon dioxide capture

“…As reported in our previous work [20], gases being freed from some MgO precursors may react with a char formed from carbon precursor and thus play a role as pore creating agents. Recently we reported on the preparation and properties of porous carbons supporting MgO [13]. These sorbents could be successfully prepared by the heating of a synthetic carbon material mixed with natural magnesite.…”

“…Loading of additives into porous carbons is typically realized through impregnation of commercially available carbon adsorbents with suitable organic or inorganic agents [11]. However, heating of some carbon precursors mixed with certain chemicals can be also used as an appropriate method to prepare porous carbon materials carrying additives [12,13].…”