AI Article Synopsis
- The study focused on creating a MoS-impregnated biochar (MoS@BC) to efficiently remove cadmium (Cd) from water using a hydrothermal reaction.
- Characterization of MoS@BC showed it effectively adsorbed Cd(II) with high capacity, and the absorption mechanisms included various interactions like ion exchange and complexation involving sulfur groups.
- With dominant bonding mechanisms identified, the MoS@BC proved to be a cost-effective solution for cleaning up cadmium contamination in the environment.
Article Abstract
The purpose of this study was to develop a MoS-impregnated biochar (MoS@BC) via hydrothermal reaction for adsorption of cadmium (Cd) from an aqueous solution. The prepared adsorbents were characterized, and their abilities to remove Cd(II) were evaluated. The Langmuir and pseudo-second-order models better described the removal of Cd(II) by MoS@BC. The prepared MoS@BC exhibited excellent monolayer adsorption capacity. The S-containing functional groups on MoS@BC enhanced the adsorption of Cd(II). Multiple Cd(II) sorption mechanisms were identified; including Cd(II)-π interactions, ion exchange, electrostatic interaction, and complexation. The dominant mechanism involved Cd-O (38.3%) bonds and Cd-S complexation (61.7%) on MoS@BC. The as-prepared MoS@BC is both economical and efficient, making it an excellent material for environmental Cd(II) remediation.
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| http://dx.doi.org/10.1007/s11356-021-13199-9 | DOI Listing |
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