Ouyang, et al (2024) Facile Synthesis of Bamboo 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 Efficient Adsorption of Quinolone Antibiotics: Effects and Mechanisms. ACS Omega. https://doi.org/10.1021/acsomega.4c07479

Researchers have developed an innovative method to address the environmental issue of antibiotic pollution in water. The study explores using bamboo biochar, created through pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More at various temperatures, to adsorb quinolone antibiotics such as moxifloxacin (MFX), ciprofloxacin (CIP), and ofloxacin (OFLX). These antibiotics, often persistent in aquatic environments, contribute to antibiotic resistance and pose risks to human and ecological health.

Bamboo biochar pyrolyzed at 700°C demonstrated the highest adsorption capacity, attributed to its optimal pore volume and size. This material effectively removed up to 151.31 mg/g of CIP, 135.56 mg/g of MFX, and 116.40 mg/g of OFLX under controlled conditions. The adsorption process followed the Langmuir isotherm model and was influenced by factors such as pHpH is a measure of how acidic or alkaline a substance is. A pH of 7 is neutral, while lower pH values indicate acidity and higher values indicate alkalinity. Biochars are normally alkaline and can influence soil pH, often increasing it, which can be beneficial More, coexisting ions, and humic acid. The study revealed that interactions such as hydrogen bonding, π–π stacking, and electrostatic attraction were key mechanisms in the adsorption process.

Moreover, bamboo biochar showed promising reusability, retaining over 85% of its adsorption capacity after three cycles of regeneration. The research highlights bamboo biochar as a cost-effective, sustainable solution for treating antibiotic-contaminated water, offering a dual benefit of addressing bamboo waste and environmental pollution. With further refinement, this approach could be a scalable method for improving water quality globally.