MCM-41 impregnated with active metal sites: Synthesis, characterization, and ammonia adsorption

Carbon silica composites for sulfur dioxide and ammonia adsorption

“…Hexagonally-ordered MCM-41 with a 37 Å pore was synthesized according to the procedure described in a previous study [21].…”

“…Equilibrium capacities for room temperature light gas adsorption of both ammonia and sulfur dioxide were measured for all samples using a breakthrough apparatus, a schematic of which has been given by Furtado et al [21,30]. Although measured under dynamic conditions, full breakthrough capacities were measured at low flow rates and are equilibrium capacities, as they end after the feed concentration exits the bed [31,32].…”

“…Exploring a CSC containing a carbon phase that can be carbonized at a lower temperature than furfuryl alcohol could be beneficial for future work on these adsorbents, since many functionalization approaches are best performed at low temperatures. [20,21].…”

“…Although not all acidic and basic gases will adsorb in the same way, sulfur dioxide and ammonia are used as representative acidic and basic gases, respectively, to understand the overall trends associated with adsorption on these composites. It builds on previous research from our group published in this journal that introduced a CSC material based on MCM-41 and furfuryl alcohol [1], optimized its synthesis [29], characterized its light gas adsorption properties for carbon dioxide, nitrogen, methane, and ethane [1,29], and optimized the silica phase of the CSC for basic gas adsorption [21]. In this paper, the carbonization method for CSC materials with two different carbon phase precursors, furfuryl alcohol (CSC-FA) and sucrose (CSC-S), is investigated, and these composites are tested for their feasibility for air purification applications.…”

Studies on Adsorption and Desorption of Ammonia Using Covalent Organic Framework COF-10

“…또, 구리를 기반으로 한 Metal-Organic Framework (MOF)/그래핀 합성물과 CaCl2와 탄소 나노 튜브(MWCNT)을 혼합하는 다공성 물질들을 이용한 암모니아 흡착 및 제거 연구들이 활발히 진행되었다 [4][5][6][7][8][9][10]. 이 중 COFs는 2005년에 처음으로 발표되었다 [11].…”