Hierarchically assembled mesoporous ZnO nanorods for the removal of lead and cadmium by using differential pulse anodic stripping voltammetric method

Kumar, K. Yogesh; Muralidhara, H. B.; Nayaka, Y. Arthoba; Balasubramanyam, J.; Hanumanthappa, Harish

doi:10.1016/j.powtec.2013.02.009

Cited by 81 publications

(27 citation statements)

References 50 publications

(39 reference statements)

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“…Therefore, the efficient removal of heavy metal ions from aqueous systems is of great significance in protecting the earth's ecosystems. Up to now, various methods such as chemical precipitation, adsorption, evaporation, ion exchange, membrane filtration, electrodialysis and reverse osmosis, have been developed to treat water containing heavy metals [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the efficiency and mechanism of Cd(II) and Pb(II) removal from aqueous solutions using MgO nanoparticles

Xiong

Wang

Tan

et al. 2015

Journal of Hazardous Materials

224

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Section: Introductionmentioning

confidence: 99%

Investigation on the efficiency and mechanism of Cd(II) and Pb(II) removal from aqueous solutions using MgO nanoparticles

Xiong

Wang

Tan

et al. 2015

Journal of Hazardous Materials

224

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“…After stirring for 3 h, the mixture was transferred to a teflon lined stainless steel autoclave, followed by hydrothermal treatment at 200 °C for 5 h. The resultant white precipitates were filtered and washed with distilled water and absolute ethanol. The washed precipitates were dried in an oven at 80 °C for 2 h …”

Section: Methodsmentioning

confidence: 99%

A facile strategy for the degradation of recalcitrant textile dyes using highly robust ZnO catalyst

Kaur

Kumar²,

Gupta

et al. 2015

J. Chem. Technol. Biotechnol.

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BACKGROUND Due to urbanization, the release of coloured wastewaters from textile industries into various environmental components has increased and is posing a threat to water bodies, so that their eradication from water bodies is necessary. To this end, semiconductor heterogeneous photocatalysis has emerged as a promising tool. However, as is well known, photocatalysis is a surface phenomenon; therefore it is strongly influenced by the fabrication technique employed for its synthesis. To address this issue, the present work demonstrates the dependence of synthetic methodology on photocatalytic efficacy of ZnO catalyst. RESULTS Catalytically active nanostructured ZnO particles were fabricated by five different facile methodologies. The fabricated nanostructures were critically analysed using techniques such as, X‐ray diffraction (XRD), high resolution transmission electron microscopy (HR‐TEM), Brunauer–Emmett–Teller (BET) and photoluminescence (PL) spectrophotometer. The photocatalytic activity of different ZnO catalysts was compared by using safranin O dye as probe molecule. CONCLUSIONS ZnO nanopowders fabricated by different methodologies were found to display different catalytic efficiencies, which was ascribed to large variations in specific surface area and rate of recombination of electrons and holes. Therefore, it is perceived that ZnO catalyst with best catalytic activity can be utilized to streamline the treatment of dye wastewater and is an ideal catalyst for a practical approach. © 2015 Society of Chemical Industry

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“…This is possibly because of the high reactivity, photolytic properties, and large surface area of the zinc nanoparticles(N. Ibanez et al, 2003;Daneshvar et al, 2004). The porous nanostructure nature of the nanoparticles, together with their high BET surface area for the adsorption of heavy metals Kumar et al, 2013), might also have contributed to their potential in treating contaminated water. Already zinc nanoparticles have been reported to adequately remove traces of copper in contaminated water with high removal efficiency (Wang et al, 2010).…”

Section: Preparations Of Magnetite and Zinc Nanoparticlesmentioning

confidence: 99%

Potentials of zinc and magnetite nanoparticles for contaminated water treatment

Fadeyibi

Adeniji

Katibi

et al. 2018

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Water contamination is an issue requiring continuous remedy on daily basis because of the high demand for clean quality water. Scientists have proffered numerous ways of making this possible but the techniques involved is often difficult to replicate at small scale. For this reason, easier and cheaper techniques for contaminated water treatment are often sought after. One way of actualizing this is via nanotechnology, which involves the use of smaller particles (< 100 nm in size) to coagulate suspended substances and inhibit microbial growth in the targeted water. The mechanisms involved have been presented for zinc and magnetite nanoparticles in this write-up. This technology provides way of getting clean quality water for domestic, agricultural and industrial applications.

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Hierarchically assembled mesoporous ZnO nanorods for the removal of lead and cadmium by using differential pulse anodic stripping voltammetric method

Cited by 81 publications

References 50 publications

Investigation on the efficiency and mechanism of Cd(II) and Pb(II) removal from aqueous solutions using MgO nanoparticles

Investigation on the efficiency and mechanism of Cd(II) and Pb(II) removal from aqueous solutions using MgO nanoparticles

A facile strategy for the degradation of recalcitrant textile dyes using highly robust ZnO catalyst

Potentials of zinc and magnetite nanoparticles for contaminated water treatment

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