Abstract
In this study, the porous carbonaceous microspheres (PCMs) were prepared using waste cotton fibers as precursor. The cotton fibers were first hydrolyzed and pre-carbonized through hydrothermal process, and then were heat treated at 900 °C. ZnCl2 was used to as catalyst to promote the hydrolysis of waste cotton in hydrothermal process and as pore-forming agent in subsequent heat treatment. The pore structure of the prepared PCMs were evaluated by nitrogen adsorption/desorption test, Fourier Transform Infrared spectroscopy analysis and X-ray photo-electron spectroscopy were conducted to determine its chemical properties. Scanning electron microscope was used to observe its surface morphology. Furthermore, the formation process of PCMs is investigated.
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