NDLI: Nanocomposite for the detoxification of drinking water: effective and efficient removal of fluoride and bactericidal activity

Content Provider	Royal Society of Chemistry (RSC)
Author	Dhillon, Ankita Kumar, Dinesh
Copyright Year	2015
Abstract	The presence of fluoride and biological toxins in groundwater is a worldwide problem and has attracted immense attention. In this study, we have developed a tri-metal (Fe–Ca–Ce) oxide material for fluoride decontamination with bactericidal efficiency. The material exhibits an excellent fluoride adsorption capacity of 384.6 mg g−1 as well as a superior bactericidal capacity with a value of 30 μg mL−1 (IC50). The four isotherms studied indicated that the material preferably follows Freundlich and Dubinin–Radushkevich (D–R) isotherms. The adsorption of fluoride followed pseudo-second-order kinetics. The high cationic nature of the developed nanomaterial (pzc = 4.5) significantly enhances its recognition by a negative E. coli bacterial membrane causing extensive leakage of large cytoplasmic protein components, leading to the death of the bacteria. The material triggered efficient inhibition of the enzyme mitochondrial dehydrogenase of E. coli (MTCC-498) bacterium. A student's t-test was performed to evaluate the statistical significance to verify the bactericidal activities. The field applicability of the developed nanomaterial was validated through column studies in real water samples when other ions were also present in the system.
Starting Page	9143
Ending Page	9154
Page Count	12
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	39
Issue Number	12
Journal	New Journal of Chemistry
DOI	10.1039/c5nj01928a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Enzyme Escherichia coli Bactericide Protein Statistical significance Freundlich Fluoride Groundwater Adsorption Radushkevich IC50 Bacteria Dubinin
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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