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All Journal Fullerene Journal of Chemistry
Iip Izul Falah
Universitas Gadjah Mada
Chemistry

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Sintesis dan karakterisasi material mesopori MCM-41 menggunakan TMAOH dan garam anorganik K2SO4 Soenandar Milian Tompunu Tengker; Iip Izul Falah
Jurnal Kimia Fullerene Vol 2 No 2 (2017): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.5 KB) | DOI: 10.37033/fjc.v2i2.10

Abstract

The MCM-41 synthesis has been performed starting from the dissolution stage of cetyltrimethylammonium bromide (CTAB) as a pore mold, then added tetramethylammonium hydroxide (TMAOH) and sodium sulfate salt (K2SO4) to improve the stability of the material. The crystallization process is carried out by adding sodium silicate and sodium aluminate dripwise into the solution. Decrease in pH of the solution was done by adding sulfuric acid (H2SO4 50%). The hydrothermal process is then carried out at 90°C for 36 hours, then washed, dried and calcined at 540°C. MCM-41 synthesis results were characterized using XRD, FTIR and TEM. The results showed that MCM-41 was successfully synthesized with a high degree of crystallography with 48Å lattice parameter size and had a uniform hexagonal pore structure.
Analisis pengaruh penambahan ion H+ pada sintesis material mesopori Al-MCM-41 menjadi H-MCM-41 Soenandar Milian Tompunu Tengker; Iip Izul Falah
Jurnal Kimia Fullerene Vol 3 No 1 (2018): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.999 KB) | DOI: 10.37033/fjc.v3i1.27

Abstract

The synthesis of mesoporous Al-MCM-41 material made into H-MCM-41 has been done by mixing 5 grams of Al-MCM-41 synthesis into 100 ml of 0.5 M NH4Cl solution, then filtered and washed and dried in an oven at temperature 80 oC for 24 hours. The acid sites contained in the mesoporous material of H-MCM-41 are the Brønsted acid sites (B) and Lewis acid sites (L). The mesoporous material of H-MCM-41 synthesis shows morphological form of hexagonal pore such as honeycomb. It also makes clear that CTAB as a pore structure steering agent has succeeded in forming a hexagonal phase pore from mesoporous H-MCM-41 synthesized material. The size of the pore diameter of the mesoporous material of H-MCM-41 synthesis was 2.88 Å measured using a measuring ruler based on the scale of the resulting image analysis using TEM.
Co-Authors Tengker, Soenandar Millian Tompunu