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'Template-free' hierarchical MoS2foam as a sustainable 'green' scavenger of heavy metals and bacteria in point of use water purification

Samantaray, PK and Indrakumar, S and Chatterjee, K and Agarwal, V and Bose, S (2020) 'Template-free' hierarchical MoS2foam as a sustainable 'green' scavenger of heavy metals and bacteria in point of use water purification. In: Nanoscale Advances, 2 (7). pp. 2824-2834.

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Official URL: https://doi.org/10.1039/c9na00747d


Molybdenum disulfide (MoS2), with its unique optical and electrical properties, has been explored for a variety of applications in the recent past. Still, its capabilities in point-of-use heavy metal ion removal remain to be explored. Herein, for the first time using a facile approach, we fabricated three-dimensional (3D) MoS2 foam from exfoliated single to few-layered MoS2 sheets for the selective exclusion of heavy metals and stringent bactericidal response. This foam was able to exclude 99.9 of Pb(ii) and 98.7 of As(iii) instantaneously and reduced more than 98 of bacteria E. coli. Moreover, the foam exhibits selective toxicity towards bacterial cells while showing no observable toxicity towards mammalian cells. The foam can be recycled and reused for at least five cycles under accelerated conditions and thus can be used for a promising non-cytotoxic, facile, and environmentally benign process for inline water remediation to remove heavy metal ions from the feed and as a potential antibacterial agent. © The Royal Society of Chemistry.

Item Type: Journal Article
Publication: Nanoscale Advances
Publisher: Royal Society of Chemistry
Additional Information: Copyright to this article belongs to Royal Society of Chemistry
Keywords: Chemical contamination; Chemicals removal (water treatment); Escherichia coli; Heavy metals; Layered semiconductors; Lead compounds; Mammals; Metal ions; Molybdenum compounds; Toxicity, Bacteria E. coli; Environmentally benign process; Heavy metal ion removal; Molybdenum disulfide; Optical and electrical properties; Threedimensional (3-d); Water purification; Water remediation, Sulfur compounds
Department/Centre: Division of Interdisciplinary Sciences > Centre for Biosystems Science and Engineering
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 06 Apr 2021 10:06
Last Modified: 06 Apr 2021 10:07
URI: http://eprints.iisc.ac.in/id/eprint/66155

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