SILILASI EKSTERNAL PADA MCM-48 YANG DISINTESIS PADA TEMPERATUR KAMAR; EXTERNAL SILYLATION OF MCM-48 SYNTHESIZED AT ROOM TEMPERATURE
Rosyidah, Arina S, Suyanta
2015 | Skripsi | FMIPAPartial silylation on external surface of MCM-48 has been studied. This research was performed to find the optimum condition to synthesize external silylated MCM-48 at room temperature. Synthesize of MCM-48 carried out by room temperature method and silylated at 60 ºC for 6 hours. Some factors effects efficiency of external silylation , i.e. contact time between silylating agent trimethylchlorosilane (TMCS) with MCM-48 and volume ratios TMCS/toluene has been studied. External silylated MCM-48 were characterized by X-Ray Diffraction (XRD), Fourier Transform Infra Red (FTIR) Spectroscopy, Transmission Electron Microscopy (TEM) and adsorption-desorption of N2 methods. The result of study showed that the optimum conditions to get external silylated MCM-48 with higher crystallinity and ordered mesopore are as follows : optimum contact time between silylating agent TMCS with MCM-48 is 6 hours and the optimum volume ratios of TMCS/toluene is 10% (v/v). Study of the effects of volume ratios TMCS/toluene showed that the higher volume ratios of TMCS/toluene increased silylation degree of MCM-48. The FTIR spectra pattern showed that silylation can removed the surfactant. The result of adsorption-desorption of N2 characterization showed that external silylated MCM-48 has specific surface area 1372.531 m² g-1, specific pore volume 0.177 cc g-1, and average pore diameter up to 2.26 nm.
Kata Kunci : N
