The Effect of Various Acids on Properties of Microcrystalline Cellulose (MCC) Extracted from Rice Husk (RH)

5th International Conference on Nanomaterials and Materials Engineering

Nur Hanani, A.S.^1 ; Zuliahani, A.^1 ; Nawawi, W.I.^1 ; Razif, N.^1 ; Rozyanty, A.R.^2

Faculty of Applied Sciences, Universiti Teknologi Mara (UiTM), Perlis, Malaysia^1

School of Material Engineering, Universiti Malaysia Perlis, Malaysia^2

关键词: Acid hydrolysis;    Cellulosic material;    Crystallinity index;    Microcrystalline cellulose;    Rice husk;    Strong acids;    Successive elimination;    Successive extractions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/204/1/012025/pdf
DOI  :  10.1088/1757-899X/204/1/012025

来源: IOP

【 摘 要 】

Microcrystalline cellulose (MCC) was successfully extracted from rice husk (RH) via acid hydrolysis process using nitric acid (HNO3) in comparison with sulphuric acid (H2SO4) and hydrochloric acid (HCl). MCC-RH extracted using HNO3produced the highest percentage yield at 83.5% as compared to H2SO4and HCl at 80.6% and 81.8% respectively. Analysis of Fourier Transform Infrared (FTIR) spectroscopy affirmed the successive elimination of non-cellulosic material from RH cellulose resulting highly purified MCC-RH. X-ray Diffraction (XRD) analysis showed MCC-RH treated with HCl gives the highest crystallinity index value of 54.2% while HNO3and H2SO4produced comparable results of 52.4% and 49.7% respectively. The results indicate successive extraction of MCC-RH using HNO3that has great potential to replace strong acid such as H2SO4and HCl in acid hydrolysis.