1. Effect of Calcination Temperature on The Synthesis of Silica from Bagasse
- Author
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Fatma Fatma, Desneli Desneli, Fahma Riyanti, Poedji Loekitowati Hariani, Muhammad Said, and Sabila Yunita
- Subjects
Precipitation (chemistry) ,Chemistry ,Scanning electron microscope ,Extraction (chemistry) ,Mass spectrometry ,law.invention ,Volume (thermodynamics) ,law ,silica ,bagasse ,Calcination ,Bagasse ,calcination temperature ,QD1-999 ,Nuclear chemistry ,BET theory - Abstract
Bagasse is the solid waste derived from the sugar-making process. A large amount of silica in bagasse is a potential source of silica. In this study, extraction of silica from bagasse was carried out in the following steps: pretreatment of bagasse using HCl solution, followed by calcination at varying temperatures (700 oC, 800 oC, and 900 ℃) using a furnace. Furthermore, extraction using NaOH solution and precipitation using HCl. Silica characteristics were obtained using X-Ray Diffraction (XRD), Scanning Electron Microscopy-Electron Dispersive Spectrometry (SEM-EDS), and BET surface area. The results showed that calcination temperature affected the characteristics of the silica produced. The silica extracted at 700℃ produced an amorphous phase with a broad peak at an angle of 2θ = 20-24°. It contained the most considerable silica content and surface area, 42.46% and 796.89 cm2/g, respectively. The extracted silica had an average diameter of 5.67 mm and a pore volume of 1.184 cm3/g.
- Published
- 2021