Rilyanti, Mita and Hastriana, Nur and ., Buhani and Suharso, S (2017) Extraction And Dealumination Silica From Sugarcane Bagasse Ash Using Alkaline Method As A Precursor In ZSM-5 Synthesis. In: 1 st International Conference on Applied Sciences Mathematics and Informatics (ICASMI), 13-15 Juli 2017, Bandar Lampung. (Unpublished)

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Abstract

ZSM-5 was synthesized by using natural silica from sugarcane bagasse ash with hydrothermal method.. Zeolites are crystalline aluminosilicate material which has pores in the micro size (< 2 nm). ZSM-5, widely used as as heterogeneous catalyst in different crude oil upgrading and chemical refinery processes. Even, it has been used in the development of nanoelectronic technology. Generally, ZSM-5 synthesis uses commercial silica precursors such as fumed silica, Ludox and tetraethyl ortho silicate (TEOS). Besides commercial silica, natural silica from biomass waste can became a sources for zeolite synthesis. One of biomass waste with high silica content is sugarcane bagasse (SCB), resulting from the sugar and ethanol industry. Burning sugarcane bagasse produces sugarcane bagasse ash (SCBA) which is known containing silica about 50-70% by weight. The high silica in sugarcane bagasse ash can be used as silica source in synthesis low cost of ZSM-5. In addition, this process can be one of the solution to manage the waste product of sugar industry. Sugarcane bagasse ash has been obtained from burning processes of bagasse at 600 °C. Dealumination process of silica from SCB using HCl 1 M has increased SiO2 and Al2O3 content from 70.25% and 12.89% become 96.395% and 2.359 % respectively by using X-ray fluorescence (XRF). Characterization by X-Ray Diffraction (XRD) showed that the silica is in amorphouse phases. Scanning Electron Microscope (SEM) showed the morphology of the resulting silica was spherical shape with particle size about 80 nm. ZSM-5 synthesis was prepared by hydrothermal method at 170 °C for 5 days with the following molar composition precursor; 1 SiO2: 0.014 Al2O3: 0.229 NaOH: 0.24 TPA-Br: 30H2O. The pure ZSM-5 phase without impurities was confirmed by XRD data. Furthermore, SEM images showed irregular morphology spherical with particle size about 2 µm. Keywords: ZSM-5, sugarcane bagasse ash, silica, hydrothermal method

Item Type: Conference or Workshop Item (Speech)
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia
Depositing User: MITA RILYA
Date Deposited: 09 Nov 2017 09:10
Last Modified: 15 Dec 2017 01:25
URI: http://repository.lppm.unila.ac.id/id/eprint/4350

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