Dopant-induced photodegradation of organic water pollutants using cobalt oxide nanostructures of low cytotoxicity
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
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| Title |
Dopant-induced photodegradation of organic water pollutants using cobalt oxide nanostructures of low cytotoxicity
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| Creator |
Santosh, M.S.
Dileep Kumar, V.G. |
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| Subject |
Coal Characterisation
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| Description |
Metal oxides are the simplest and most approachable solutions for attaining multifunctional properties applicable
to modern-day technology. With growing concern over environmental conservation, an evaluation of the cytotoxicity of the metal oxides becomes necessary. The present work focuses on the photocatalytic and cytocompatibility behavior of Co3O4 nanomaterial. It has been observed that the addition of Li to the Co3O4 nanostructure generates a positive impact on the photodegradation of cationic dyes under UV light. The photocatalyst with 1 wt% Li-doped Co3O4 was found to be the most competent among the synthesized samples.
Further, the sample has been employed for photocatalytic removal of the hazardous pollutant, pyrocatechol
(PyC), in the presence of visible light. A photocatalytic efficiency of 84.5% (after 9 h) and high stability (86%
after 5 cycles) is observed. A noteworthy revelation is the lower toxicity observed for Li-doped samples when
compared to the pristine Co3O4. The (3-(4,5-dimethylthiazolyl-2)− 2,5-diphenyltetrazolium bromide) (MTT)
assay carried out on mouse skin fibroblast cell lines reveals cytotoxicity inhibition by the doped nanostructures
for up to 10 μg mL− 1 concentration and excellent cell proliferation up to 24 h. The superior catalytic behavior
and non-toxic nature of the Li-doped Co3O4 nanostructures provide ample opportunity for their integration into
water remediation and effluent treatment systems
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| Publisher |
Elsevier
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| Date |
2023-04-16
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| Type |
Article
PeerReviewed |
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| Identifier |
Santosh, M.S. and Dileep Kumar, V.G. (2023) Dopant-induced photodegradation of organic water pollutants using cobalt oxide nanostructures of low cytotoxicity. Journal of Environmental Chemical Engineering, 11 (2).
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| Relation |
http://cimfr.csircentral.net/2570/
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