Preparation of Hierarchically Porous Carbon Materials from Sugarcane Bagasse

Abstract

Hierarchically porous carbon materials (HPC) were successfully prepared from environmentally friendly phloroglucinol/glyoxylic acid precursors with soft-template F127 using sugarcane bagasse as scaffold by self-assembly method. Phloroglucinol and glyoxylic acid used as carbon precursor and F127 as a mesopore template. Effect of carbon precursor/template ratio on the physical and chemical properties of the carbon monoliths was studied. The sample without template (BG_PGF) was prepared by carbonizing the sugarcane bagasse mixed with carbon precursor under the same conditions. Furthermore, various techniques were employed to investigate the physicochemical properties of the carbon monoliths. While the chemical properties of monolith adsorbents are the same, the physical properties are different. BG_PGF and BG have only micropore (pore size <2 nm). HPC has mesopore (pore size 2-50 nm). Moreover, The maximum adsorption capacity of methylene blue for HPC higher than BG_PGF and BG. It showed the mesopore structure are the factor for adsorption property. The coated carbon was highly stable mechanical stability than BG. The obtained HPC has a great potential as a floating monolith adsorbent for water treatment.