3D Sponge-Like Structures of Carbon Nanotubes for Heavy Metal Adsorption
Source abstract
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.
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Research context
OpenAlex topics: Graphene research and applications · Carbon Nanotubes in Composites · Graphene and Nanomaterials Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical Science and Technology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Rome, Italy
CNR-Istituto di Struttura della Materia (CNR-ISM)
Nuclear Department, Enea Casaccia Research Centre, Via Anguillarese, 301, 00123 S. Maria Di Galeria (Rome), Italy
ArpaLazio, Via Giuseppe Saredo 52, 00173 Rome, Italy
Department of Physics, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, 00133 Rome, Italy
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