Open AccessEffect of Acid Treatment on Extraction of Silica from Cogon Grass by Using C6H8O7 and HCL Acid
Author(s) -
N A Zarib,
Shafinas Abdullah,
Nur Amira Aida Jusri
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/834/1/012067
Subject(s) - hydrochloric acid , leaching (pedology) , chemistry , citric acid , nuclear chemistry , extraction (chemistry) , raw material , lignin , cellulose , amorphous silica , scanning electron microscope , solubility , materials science , organic chemistry , chemical engineering , composite material , environmental science , soil science , engineering , soil water
Cogon grass is one type of agricultural wastes that can easily be found around the world. A cogon grass contains with relatively low lignin (5.67%), ash (8.24%) and acceptable holo-cellulose and cellulose solubility of 64.9% and 37.1% respectively. The focus of this paper is to analyse the effect of acid treatment of silica extraction of cogon grass due to silica as a raw material that can be apply in industrial. Parameters such as concentration of acid and weight percentage used in cogon grass during organic and inorganic leaching method were also compared. In this paper, citric acid (C 6 H 8 O 7 ) and hydrochloric acid was used for production of silica from cogon grass. Samples were characterized using Scanning Electron microscopy (SEM), X-ray diffraction (XRD) and Thermal gravimetric Analysis (TGA). The result indicates that highest percentage silica of cogon grass after leaching was on 1.0M via HCL acid leaching and has an amorphous structure.