Authors:Koranat Narkpiban, Piangkhwan kruapoo, Rangsan Koodsamrong, Chaiyasit Keawcharoon, Najjapak Sooksawat
Abstract:Bamboo (Dendrocalamus sericeus Munro) is fast-growth plant with abundant biomass for conversion to fuel and various uses, including insulation and electronic applications. Bamboo charcoal produced in a low-cost furnace was separated into bamboo coal with electrical conductivity (bamboo coal 1) and without electrical conductivity (bamboo coal 2), subjected to proximate analysis and evaluation of adsorption and fuel properties. In addition, structural properties were studied based on surface area analysis using the Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) methods, Fourier transform infrared spectroscopy (FTIR) and Xray diffraction (XRD). Of the two bamboo coal types, bamboo coal 1 with electrical conductivity had better adsorptive properties, such as a greater iodine number value (240 mg g-1), while the BET and the BJH methods showed that the surface area was 36.653 m² g-1 with a pore volume of 0.052 cm3 g -1 and a pore size of 15.292 Å. In addition, it was better for use as a deodorant and as a solid fuel for cooking with a longer total burning time (81 min). Bamboo coal 2 had lower moisture (5.75%), and ash (6.56%) contents, with a higher heating value (6913 kcal kg-1), indicating that bamboo coal 2 was good for deodorant usage and could have potential for development as an insulator with a hydrophobic and fire-retardant coating material. Bamboo coal 1 had a graphite crystalline structure and could have potential with additional further graphene development for electronic uses.
Keywords:adsorption, bamboo, charcoal, electrical conductivity, fuel