COMPARISON BETWEEN TWO ALTERNATIVES METHODS OF GRAPHITIC NANOFIBER PURIFICATION

• Main Author: REBITANIM, NUR ZALIKHA
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi PETRONAS 2010
• Subjects: TP Chemical technology
• Online Access: http://utpedia.utp.edu.my/10063/1/2010%20-%20Comparison%20Between%20Two%20Alternatives%20Methods%20of%20Graphitic%20Nanofiber%20Purification.pdf; http://utpedia.utp.edu.my/10063/
• Institution: Universiti Teknologi Petronas

An efficient purification procedure for the punfication of Graphite Nanofibers (GNFs) based on chemical treatment is discussed. There are two different methods of purification steps. The first process involves benzene washing, ultrasonic acid treatment, nitric acid treatment at 70°C and freezing in liquid nitrogen. The second method involves nitric acid wash and hydrogen peroxide reaction. The two methods are compared to acquire the most cost effective and simplest pur-ification method. Most of amorphous carbon as well as metal particles were successfully removed from the GNF product. Raman Spectroscopy, X-Ray diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM) are used to evaluate the purification process of the GNFs.