In situ transformation of agave bagasse into activated carbon by use of an environmental scanning electron microscope

The formation of ZnCl2 activated carbon from a lignocellulosic material such as agave bagasse fibers has been characterized in situ, by environmental scanning electron microscopy. The carbonization process of raw bagasse fibers showed the development of a macroporous structure, which was related to the fibers chemical composition. In contrast, when fibers were activated with ZnCl2, a molten phase and a rapid evolution of gasses were observed. These results, which are recorded in a video, significantly contribute to the understanding of the chemical activation process of lignocellulosic materials to form activated carbon.

Figure optionsDownload as PowerPoint slideHighlights
► Agave bagasse is a lignocellulosic fiber employed to produce activated.
► There is a considerable physical transformation of agave fibers during activation.
► Real time observation of the carbonization and activation were recorded in video.
► A molten phase is formed during the chemical activation.
► The phase transition has implications on the pore formation.