What is MCM 48?

What is MCM 48?

MCM-41 (Mobil Composition of Matter No. 41) and MCM-48 (Mobil Composition of Matter No. 48) are two of the most popular mesoporous molecular sieves that are keenly studied by researchers.

What is Al MCM-41?

Al-MCM-41 is a member of the ExxonMobil M41S family of mesoporous molecular sieves. Researchers at Mobil in the 1980s were on a quest to find better molecular sieves when they discovered a group of nanostructured mesoporous materials.

How do you make MCM-41?

Functionalized MCM-41 was prepared by wet impregnation adapted from other research groups. Accordingly, 0.43 g of PEI was dissolved in 8 g of methanol under mechanically stirring for 15 min. Then, 1 g of uncalcined MCM-41 powder was added into the mixture under stirring for 24 h.

Is SBA-15 a zeolite?

The ZSM-5/SBA-15 zeolites with hexagonal prism, platelet, short rod, and long rod were named as ZS-HP, ZS-PL, ZS-SR, and ZS-LR, respectively. ZS-M represents the physical mixture zeolites of ZSM-5 and SBA-15.

How do I get an SBA-15?

Synthesis of SBA-15 involves dissolving of template in acidic solution followed by addition of silica source. The mixed solution is heated at 30–40 °C for 20–24 h and then aged for 24–48 h at 80–120 °C. A white solid is obtained after aging.

How do you synthesis MCM-41?

MCM-41 was prepared through a modified conventional synthesis method [35] by adding TEOS to an aqueous solution containing CTAB, 1 M of NaOH, and deionized water. The molar composition of the initial gel mixture was 1.0:0.09:3.57:62.05 TEOS/CTAB/NaOH/H2O.

What is microporous silica?

Microporous silica materials with a small pore size and a narrow pore size distribution can be obtained by pyrolysis of propylmethylacrylate ligands from relatively dense hybrid nanocomposites.

Is SBA 15 amorphous?

Santa Barbara Amorphous (SBA-15) is one of the typical mesoporous bases on silica that has well ordered hexagonal structure with uniform pore size up to 30 nm [3].