Bio-Based carbon nanomaterials synthesis from waste tea

Carbon nanoflakes were fabricated from domestic waste tea leaves as a bio-alternative source of carbon in one step. The fabricated nanoflakes based-carbon were characterized by field-emission scanning electron microscope, Fourier transform infra-red, energy dispersive X-ray analysis, and Raman spectroscopy. In addition, thermogravimetric analysis was investigated to examine the thermal stability of the products. The morphology of the products showed the observation of carbon-flakes nanomaterials having thin graphitic outer mono shells with a diameter of about 35 nm and different monolith sizes of about 15 to 180 nm. The as-obtained materials demonstrated good thermal stability with a yield of 48% due to the high temperature used in the deposition stage. The fabrication showed that the temperature range of the deposition step in addition to the cooling step plays a major role in the nanoflakes formation.