Scalable interlinked hierarchical porous biochar-nanosheets for efficient removal of thallium from aquatic environment.

The scalable development of engineeredcarbonaceous materials for commercialization at industrial scale is a formidable issue. Herein, a scalable and innovative chemical exfoliation approach was introduced to develop interlinkedhierarchical biocharnanosheets (BCNs) framework form agricultural wastes. The developed BCNs exhibited higher surface area (1048.

Outdoor Health Risk of Atmospheric Particulate Matter at Night in Xi'an, Northwestern China.

The deterioration of air quality via anthropogenic activities during the night period has been deemed a serious concern among the scientific community. Thereby, we explored the outdoor particulate matter (PM) concentration and the contributions from various sources during the day and night in winter and spring 2021 in a megacity, northwestern China. The results revealed that the changes in chemical compositions of PM and sources (motor vehicles, industrial emissions, coal combustion) at night lead to substantial PM toxicity, oxidative potential (OP), and OP/PM per unit mass, indicating high oxidative toxicity and exposure risk at nighttime.