Singh, et al (2024) Rice Straw Derived Mesoporous BiocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More for the Removal of Coomassie Brilliant Blue Dye. Topics in Catalysis. https://doi.org/10.1007/s11244-024-01961-5

Managing agricultural waste and water remediation poses significant environmental challenges today. Industrial dye discharge into water sources causes severe carcinogenic, mutagenic, and genotoxic effects on both aquatic life and human health. Addressing this issue, a recent study investigated mesoporous biochar (BC) derived from rice straw as an adsorbent for removing Coomassie Brilliant Blue (CBB) from water.

The study examined the structural properties of the biochar using various analytical techniques, including thermogravimetric analysis, Brunauer-Emmett-Teller (BET) analysis, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR). These analyses revealed a mesoporous structure with pore sizes ranging from 20 to 50 nm and an enhanced surface area. X-ray diffraction (XRD) analysis confirmed the amorphous nature of the biochar with graphitic carbon content.

The prepared biochar demonstrated an impressive 80% removal of CBB dye at an adsorbent dose of 10 mg in a solution containing 20 mg/L of the dye under ambient conditions. Isotherm and kinetic studies indicated that the Langmuir adsorption isotherm and pseudo-first-order kinetics best described the dye removal process.

These findings suggest that rice straw-derived biochar is a promising, eco-friendly biosorbent with high adsorption efficiency for removing CBB dye from water. This research highlights the potential of utilizing agricultural waste for effective water remediation, contributing to both waste management and environmental protection.