A major review finds that nitrogen-doped biochar made from agricultural waste can outperform commercial activated carbon in capturing antibiotics, dyes, pesticides, and heavy metals from wastewater, ...

Using inexpensive biochar to coat electrodes and a new method to create the porous surface needed to capture electricity may reduce the cost of supercapacitors. Activating the biochar using plasma ...

Researchers converted discarded bean husks into a low-cost biochar that removed up to 94.7% of lead and 91.5% of hexavalent chromium from contaminated water without chemical activation.

The ability to absorb and discharge energy quickly make supercapacitors an integral part of energy harvesting systems, such as the regenerative braking systems of hybrid vehicles, according to ...