Upcycling Waste A4 Paper into Carbon-based Catalyst for Water Decontamination

Research has shown a methodology for converting waste A4 paper into a calcium carbonate/biochar nanocomposite (CCBN) through hydrothermal treatment and calcination. The end product, CCBN-400, is characterized as a high-efficiency nanocatalyst, which has shown effectiveness in activating PMS for treating antibiotics wastewater. The tests indicated a significant reduction in the bio-toxicity of tetracycline to wheat seeds after treatment with the CCBN-400/PMS system, emphasizing its potential in water decontamination.