مشخصات پژوهش

عنوان	Merging periodic mesoporous organosilica (PMO) with mesoporous aluminosilica (Al/Si-PMO): A catalyst for green oxidation
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Mesoporous aluminosilica Periodic mesoporous organosilica Green oxidation Dibenzothiophene
چکیده	Mesoporous aluminosilica is a unique structure for catalysis due to Lewis acidity of aluminum. Here, we design a new catalyst by merging periodic mesoporous organosilica with aluminosilica into its structure instead of mere silica. The employed organosilica bridge in this synthesis is a thiourea based organosiloxane precursor which has a unique feature in supporting catalytically active cations. Therefore, we support Cu 2+ ions through these thiourea bridges to generate a catalytically active species along with aluminosilica structure (Cu@Al/Si-PMOTU). Combining alminosilica with Cu 2+ ions led to a synergistic catalytic activity in the aqueous oxidation of dibenzothiophene. Furthermore, the addition of Al 3+ as a precursor during the synthesis of PMO causes an enhancement in the mesoporosity and surface area and led to the formation of mesoporous nanofibers. The proposed green bifunctional catalyst is easily recoverable and reusable for several consecutive cycles.
پژوهشگران	حسین اسدی (نفر ششم به بعد)، نائو تسونوجی (نفر ششم به بعد)، صادق رستم نیا (نفر پنجم)، یوسوکه ایده (نفر چهارم)، مرتضی حسنی (نفر سوم)، حامد محتشم (نفر دوم)، اسماعیل دوستخواه (نفر اول)