Magnificent adsorption capacity of hierarchical mesoporous copper oxide nanoflakes towards mercury and cadmium ions: Determination of analyte concentration by DPASV

Kumar, Kumarswamy Yogesh; Muralidhara, H. B.; Nayaka, Y. Arthoba

doi:10.1016/j.powtec.2014.03.015

Cited by 19 publications

(4 citation statements)

References 37 publications

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“…To further investigate the effect of temperature, adsorption experiments were conducted at 298, 308, and 318 K. Thermodynamic parameters, free energy ( G Â ), enthalpy ( H Â ), and entropy ( S Â ) changes were also calculated using the following equation [30]:…”

Section: Thermodynamics Studiesmentioning

confidence: 99%

Removal of Cu(II) from aqueous solutions by tartaric acid modified multi-walled carbon nanotubes

Zhao

Jiao

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Thermodynamics Studiesmentioning

confidence: 99%

Removal of Cu(II) from aqueous solutions by tartaric acid modified multi-walled carbon nanotubes

Zhao

Jiao

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…CuO nanoparticles have been found to have anticancer properties in A549 lung cancer cells 42 . From historical eras copper and copper oxides have been used in numerous biomedical applications such as tissue repair, grocery bags, and dental standards and so on, owing to unique antibacterial and anticancer abilities 43 , 44 . Nanocomposites are in demand in hopes of improving biological efficiency while also meeting specific requirements.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and in vivo toxicological studies of Bi2O3/CuO/GO nanocomposite synthesized via cost effective methods

Qayyum

Batool

Fatima

et al. 2022

Sci Rep

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In this research work, Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO nanocomposites have been synthesized via an eco-friendly green synthesis technique, solgel route and co-precipitation method respectively for the assessment of antibacterial activity as well as in vivo toxicity. The XRD patterns confirm the formation of Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO nanocomposites showing monoclinic structures. Crystallite size and lattice strain are calculated by Scherrer equation, Scherrer plot and Willimson Hall plot methods. Average crystallite size measured for Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO nanocomposites by Scherrer equation, Scherrer plot and WH-plot methods are (5.1, 13.9, 11.5)nm, (5.4, 14.2, 11.3)nm and (5.2, 13.5, 12.0)nm respectively. Optical properties such as absorption peaks and band-gap energies are studied by UV–vis spectroscopy. The FTIR peaks at 513 cm−1, 553 cm−1 and 855 cm−1 confirms the successful synthesis of Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO nanocomposites. The antibacterial activity of synthesized Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO nanocomposites is examined against two gram-negative (Escherichia coli and pseudomonas) as well as gram-positive bacteria (Bacillus cereus and Staphylococcus aureus) at dose 25 mg/kg and 40 mg/kg by disk diffusion technique. Zone of inhibition for Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO at dose 40 mg/kg against E. coli (gram − ve) are 12 mm, 17 mm and 18 mm respectively and against Pseudomonas (gram − ve) are 28 mm, 19 mm and 21 mm respectively. While the zone of inhibition for Bi2O3/GO and Bi2O3/CuO/GO at dose 40 mg/kg against B. cereus (gram + ve) are 8 mm and 8.5 mm respectively and against S. aureus (gram + ve) are 5 mm and 10.5 mm respectively. These amazing results reveal that Bi2O3, Bi2O3/GO and Bi2O3/CuO/GO nanocomposite as a kind of antibacterial content, have enormous potential for biomedical applications. In addition, the in vivo toxicity of synthesized Bi2O3/CuO/GO nanocomposite is investigated on Swiss Albino mice at dose of 20 mg/kg by evaluating immune response, hematology and biochemistry at the time period of 2, 7, 14 and 30 days. No severe damage is observed in mice during whole treatment. The p value calculated by statistical analysis of hematological and biochemistry tests is nonsignificant which ensures that synthesized nanocomposites are safe and non-toxic as they do not affect mice significantly. This study proves that Bi2O3/CuO/GO nanocomposites are biocompatible and can be explored further for different biomedical applications.

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“…Thus, many recent efforts have been focused on the hierarchical assembly of 1D and 2D nanoscale building blocks, such as nanowires [8], nanorods [9], and nanosheets [10], into ordered complex hierarchical architectures, which are expected to have novel collective optical, magnetic, and electronic properties. Currently, numerous methods, such as the low-temperature aqueous solution route [11,12], precipitation process [13], sonochemical method [14], and hydrothermal technology [15][16][17], have been developed to fabricate various hierarchical superstructures. Among them, the hydrothermal method shows special advantages for the synthesis of a variety of hierarchical architectures owing to the mild synthesis conditions, potential for scale-up, economic factors, simplicity, and ease of operation.…”

Section: Introductionmentioning

confidence: 99%

Novel 3D flower-like TiO2:Eu3+ hierarchitectures: Hydrothermal synthesis and luminescent properties

Zhang

Zhou

et al. 2015

Powder Technology

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Magnificent adsorption capacity of hierarchical mesoporous copper oxide nanoflakes towards mercury and cadmium ions: Determination of analyte concentration by DPASV

Cited by 19 publications

References 37 publications

Removal of Cu(II) from aqueous solutions by tartaric acid modified multi-walled carbon nanotubes

Removal of Cu(II) from aqueous solutions by tartaric acid modified multi-walled carbon nanotubes

Antibacterial and in vivo toxicological studies of Bi2O3/CuO/GO nanocomposite synthesized via cost effective methods

Novel 3D flower-like TiO2:Eu3+ hierarchitectures: Hydrothermal synthesis and luminescent properties

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