Carbon Biochar Microparticles from Mango Peel as a Sustainable Adsorbent for Ammonia Storage in Supporting Hydrogen Energy Systems and Sustainable Development Goals (SDGs)

Abstract

Ammonia is increasingly being considered a key hydrogen carrier for clean energy systems due to its high energy density and efficient storage and transportation capabilities. However, its corrosive nature poses significant challenges for safe handling and storage. This study investigated the use of carbon biochar microparticles derived from mango peel biomass as a sustainable adsorbent for ammonia storage. Mango peel, an abundant agricultural waste, is converted into biochar, enhancing its surface area and adsorption properties. The performance of the biochar microparticles was evaluated using adsorption isotherms, including Langmuir and Freundlich models, to understand the ammonia adsorption capacity and mechanism. Additionally, the effect of particle size on adsorption efficiency was explored, with smaller microparticles showing improved performance due to a higher surface area. The results demonstrate that mango peel-derived biochar microparticles offer an effective and eco-friendly solution for ammonia storage, supporting the development of hydrogen energy systems. This study presents a novel approach for managing ammonia in clean energy applications while promoting the use of agricultural waste in sustainable technologies. This study also supports current issues in sustainable development goals (SDGs).