Characterization of blending hydrogel biochar as an adsorbent derived from sugarcane bagasse and flyash: article

Biomass are a good choice to be used as an adsorbent due to their availabilty in the environemnt and reducing the waste in surroundings indirectly. Large volume of industrial by-products, for instance palm kernel shell, sugarcane bagasse, sawdust, rice husk and others are produced. In this study, biochar from Saccharum officinarum (L), or sugarcane bagasse (SB) was obtained using slow pyrolysis. The raw sample with different ratio of biochar and flyash (FA) was blended with hydrogel. The hydrogel was produced by mixing the biochar with a monomer, that is acrylamide (AAm), a cross-linker, that is methylenebisacrylamide (MBA), and with the presence of an initiator, that is ammonium persulfate (APS). The properties and characteristics of the blended hydrogel biochar have been made through different instrumental methods like field emission scanning electron microscope (FESEM) to obtain the pore structure and distribution, Brunauer-Emmett-Teller (BET) surface area analysis and proximate analysis using Thermogravimetric Analysis (TGA). The blended hydrogel biochar of ratio 50:50 (SB:FA) is found to be a better adsorbent with having larger surface area of 3.7297 m2/g and its fixed carbon percentage of 24.7655%.