Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Herein, we investigate the synthesis and properties of carbon-based 3D frameworks aimed at their application to Cd 2+ and Pb 2+ removal from the water environment. The production of 3D sponge-like structures of nonfunctionalized carbon nanotubes (CNTs) by chemical vapor deposition is described, with the morphological and functional properties. After only a mild treatment in ethanol, their adsorption capabilities toward heavy metals were studied using reference analytical methods to disclose insights into the correlation between the structure and the adsorption efficiency. Moreover, a 3D-printed portable and easy-to-use system was designed to apply the CNT sponges to heavy metal removal in water, obtaining adsorption percentages of 15–48% for Cd 2+ and 45–82% for Pb 2+ in tap water. Compared with other carbon-based adsorbents, our strategy is competitive in removal efficiency while avoiding complex treatments, demonstrating an inspiring strategy for promoting effective actions in water remediation.
Source: ACS Applied Nano Materials
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W4411439332