Synthesis and characterization of biochar from dehradun rice straw and its application for adsorption of methylene blue dye

Stubble management and burning is one of the major concerns in India, which creates environmental pollution and decreases in the air quality index in many Indian cities. Conversion of stubble into biochar is an eco-friendly way to manage stubble burning. In the current study, Dehradun rice straw has been used to synthesize biochar by the method of pyrolysis and acid activation. The biochar synthesized was characterized by the aid of SEM and EDAX techniques. The synthesized biochar after activation exhibited significant porosity and surface area. The results of methylene blue adsorption with the aid of rice straw biochar showed significant adsorption capacity at a concentration of 2mg/mL biochar at room temperature.