SnO2 nanoparticles as effective adsorbents for the removal of cadmium and lead from aqueous solution: Adsorption mechanism and kinetic studies

Kumar, K. Yogesh; Raj, T.N. Vinuth; Archana, S.; Prasad, S.; Olivera, Sharon; Muralidhara, H. B.

doi:10.1016/j.jwpe.2016.07.007

Cited by 61 publications

(25 citation statements)

References 59 publications

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“…The prepared CuO nanoparticles were in large flake-like shape figure 2-a, while the prepared SnO 2 nanoparticles were in small spherical shape figure 2-b. These findings are in a good agreement with those published by other researchers [30,31], as summarized in table 1.…”

Section: Scanning Electron Microscopic (Sem) Analysessupporting

confidence: 93%

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Facile Preparation of Copper and Tin Oxide Nanoparticles as Efficient Adsorbent of Heavy Metals from Wastewater

Abdelaal¹,

Abdelmotaleb²,

Kady³

et al. 2021

IJEE

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Heavy metal removal from waste water is essential to solve the global water crises. Transition metal oxide nanoparticles are promising candidates for these applications. Herein, Copper oxide and Tin oxide nanoparticles have been prepared via Facile and economic perception method starting from commercial precursors. The obtained nanoparticles were in flack-like shape and spherical shape for Copper oxide and Tin oxide nanoparticles, respectively. All prepared nanoparticles are in crystalline phases, where the prepared Copper oxide and Tin oxide nanoparticles were in monoclinic and tetragonal crystalline phases, respectively. The crystal size of Copper oxide and Tin oxide nanoparticles were 12 nm and 13 nm respectively. Cd and Pb ions were removed from wastewater by the obtained Copper oxide and Tin oxide nanoparticles. The adsorption processes were studied under various parameters, such as; contact time and pH values. The highest removal uptake was about ~99% of Pb ions were recorded for Copper oxide nanoparticles. This uptake process carried out after 30 min in a neutral medium (pH 7). While, Tin oxide nanoparticles removed about ~94% at the same conditions. On the other hand, Copper oxide nanoparticles removed about ~ 57% from Cd ions. This uptake process carried out after 30 min in a partially acidic medium (pH 6). While, Tin oxide nanoparticles removed about ~54% at the same conditions. Finally, it is highly recommended to use Copper oxide and Tin oxide nanoparticles as promising adsorbents for heavy metal removal applications.

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Section: Scanning Electron Microscopic (Sem) Analysessupporting

confidence: 93%

“…These results are in a good agreement with those published by other researchers [30,31], as summarized in table 1.…”

Section: X-ray Diffraction Analysessupporting

confidence: 93%

Facile Preparation of Copper and Tin Oxide Nanoparticles as Efficient Adsorbent of Heavy Metals from Wastewater

Abdelaal¹,

Abdelmotaleb²,

Kady³

et al. 2021

IJEE

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“…SnO nanoparticles are conducting, transparent and gas-sensitive, and thus, are gaining much interest as nanoadsorbents and as catalysts. SnO with a surface area of 24.48 m 2 g −1 as measured by BET isotherms demonstrated adsorption of Pb 2+ and Cd 2+ at 1265.8 and 1275.5 mg g −1 , respectively [93]. Flowerlike MgO nanostructures also displayed excellent adsorption of Pb 2+ and Cd 2+ .…”

Section: Other Metal Oxide Nanoparticlesmentioning

confidence: 94%

Heavy metal pollution and the role of inorganic nanomaterials in environmental remediation

et al. 2021

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Contamination of water and soil with toxic heavy metals is a major threat to human health. Although extensive work has been performed on reporting heavy metal pollutions globally, there are limited review articles on addressing this pernicious phenomenon. This paper reviews inorganic nanoparticles and provides a framework for their qualities required as good nanoadsorbents for efficient removal of heavy metals from water. Different inorganic nanoparticles including metals, metal oxides and metal sulfides nanoparticles have been applied as nanoadsorbents to successfully treat water with high contaminations of heavy metals at concentrations greater than 100 mg l −1 , achieving high adsorption capacities up to 3449 mg g −1 . It has been identified that the synthesis method, selectivity, stability, regeneration and reusability, and adsorbent separation from solution are critical parameters in deciding on the quality of inorganic nanoadsorbents. Surface functionalized nanoadsorbents were found to possess high selectivity and capacity for heavy metals removal from water even at a very low adsorbent dosage of less than 2 g l −1 , which makes them better than conventional adsorbents in environmental remediation.

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“…1 There has been research on the sorption characteristics of metal oxides, such as SiO 2 , TiO 2 , ZrO 2 and SnO 2 since the mid-20th century. 2 Among them, tin dioxide nanoand microparticles have shown promising sorption properties for both organic 3 and inorganic [4][5][6][7][8][9][10][11][12][13] compounds. Nanoscale SnO 2 has attracted attention as a multifunctional material and it has also been used in transistors, 14 protective coatings 15 and gas sensors.…”

Section: Introductionmentioning

confidence: 99%

Novel electroblowing synthesis of tin dioxide and composite tin dioxide/silicon dioxide submicron fibers for cobalt(ii) uptake

et al. 2021

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SnO2 nanoparticles as effective adsorbents for the removal of cadmium and lead from aqueous solution: Adsorption mechanism and kinetic studies

Cited by 61 publications

References 59 publications

Facile Preparation of Copper and Tin Oxide Nanoparticles as Efficient Adsorbent of Heavy Metals from Wastewater

Facile Preparation of Copper and Tin Oxide Nanoparticles as Efficient Adsorbent of Heavy Metals from Wastewater

Heavy metal pollution and the role of inorganic nanomaterials in environmental remediation

Novel electroblowing synthesis of tin dioxide and composite tin dioxide/silicon dioxide submicron fibers for cobalt(ii) uptake

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