Researchers at the National University of Singapore have developed a method to turn discarded pomegranate peels into nanobiochar. This material effectively removes 4-nitrophenol, a toxic industrial pollutant used in dyes and pharmaceuticals, from contaminated water without requiring harsh chemical activating agents. The process involves heating the peels to 600 degrees Celsius and using ball milling to create nanoparticles. Lab tests show the material can remove over 94 percent of contaminants within 90 minutes and remains effective after multiple reuse cycles.
