Sorption of plutonium from low level liquid waste using nano MnO2

Bhagyashree, K.; Mishra, R.; Shukla, Rakesh; Kasar, Sharayu; Kar, Aishwarya S.; Kumar, Sumit; Kumar, Sanjay; Kaushik, C.P.; Tyagi, A. K.; Tomar, B. S.

doi:10.1007/s10967-012-1938-0

Cited by 9 publications

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“…The selective separation of Cs and Co from solution, especially at low concentration, has attracted the attention of chemists around the world because of its importance in the treatment of nuclear liquid wastewater (Bhagyashree et al 2013(Bhagyashree et al , 2014Taj et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…These properties can be controlled by the experimental conditions of synthesis (Dyer et al 2000a;Chen et al 2011). The adsorption properties of NMO can be further enhanced by the synergetic effects of electrostatic interaction and inner-sphere complex formation that could be introduced by specific chemical modifications (Bhagyashree et al 2013(Bhagyashree et al , 2014Qin et al 2011;Das et al 2010;Mukherjee et al 2013;Su et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Cesium, Cobalt, and Lead onto a Synthetic Nano Manganese Oxide: Behavior and Mechanism

Abdullah

Lafi

Masri

et al. 2016

Water Air Soil Pollut

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Synthesis parameters of nano manganese oxide (NMO) were tuned in order to maximize Cs and Co sorption efficiencies. The prepared oxide was characterized using various techniques including x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), SEM, and surface area analyzer. The sorption characteristics with respect to uptake of Cs, Co, and Pb were evaluated. An α − phase nano manganese oxide with a surface area of 165 m 2 g −1 was synthesized. Maximum adsorption capacities were 230 mg g −1 for Pb 2+ , 73 mg g −1 for Cs + , and 26 mg g −1 for Co 2+ . The intraparticle diffusion was the rate-limiting step in the case of Pb 2+ , whereas both intra-particle diffusion and film diffusion contribute to the rate-determining step in the adsorption process in the case of Cs + and Co 2+ . FT-IR analyses reveled that Cs + and Co 2+ coordinated to vacancy sites of NMO as inner-sphere complexes, while Pb 2+ formed bidentate corner-sharing complexes. NMO had high affinity for Pb 2+ but was also effective for sorption of Cs + and Co 2+ over a wide pH range, even in the presence of Na + . HCl (0.5 mol L −1 ) solution could regenerate the adsorbent successfully, and the NMO could be efficiently reused with lower production of residues. Thus, the prepared NMO can be efficiently used in wastewater treatment in terms of high adsorption capacity, easy availability, and low cost.

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Section: Introductionmentioning

confidence: 99%