Extraction Of Silica From Rice Husk Via Acid Leaching Treatment
Figure 4: FESEM image of (a) untreated rice husk, (b) 1.0 M of treated rice husk using 1.0 M of citric acid at 60 minutes and (c) 1.0 M of treated rice husk using 1.0 M of hydrochloric acid at 60 minutes at magnification of 5000X
![FESEM image of (a) untreated rice husk, (b) 1.0 M of treated rice husk using 1.0 M of citric acid at 60 minutes and (c) 1.0 M of treated rice husk using 1.0 M of hydrochloric acid at 60 minutes at magnification of 5000X](https://www.europeanproceedings.com/files/data/article/94/5431/AIMC2018116.fig.004.jpg)