Open AccessExtraction of silicon dioxide from rice straw (Oryza sativa L.) with variation ignition temperature
Author(s) -
Indri Hapsari,
Irzaman Irzaman,
M. N. Indro
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/460/1/012024
Subject(s) - straw , silicon dioxide , silicon , materials science , ignition system , atmospheric temperature range , crystallinity , oryza sativa , rice straw , analytical chemistry (journal) , chemistry , metallurgy , composite material , environmental chemistry , inorganic chemistry , physics , meteorology , thermodynamics , biochemistry , gene
Rice straw is the largest wastes of the rice plant. Usually, rice straw is only burned after the harvest process by farmers, even though rice straw contains 75% of silicon dioxide. The temperature of ignition is one important process of extracting silicon dioxide. This variation of ignition temperature will affect characteristics of the silicon dioxide. This research used the ignition temperature of 700 °C, 800 °C, and 900 °C. In the first step, rice straw is burned using matches then the powder is washed using 3% HCl and then rinsed using distilled water, and the ignition process in the furnace with different temperatures was set up. Temperature of 700 °C, 800 °C, and 900 °C have a range of electrical conductivity values from 50 Hz – 5 MHz, 10245.37 Hz – 5 MHz, and 11502.15 Hz – 5 MHz that categorized as semiconductors and produces silicon dioxide with a purity of 80.97% atoms, 99.99% atoms, and 61.53% atoms. Silicon dioxide with an ignition temperature of 700 °C, 800 °C, and 900 °C has a degree of crystallinity respectively at 25.82%, 44.24%, and 45,61%.