Sorption behaviour of nanocrystalline MOR type zeolite for Th(IV) and Eu(III) removal from aqueous waste by batch treatment

Sharma, Pankaj; Tomar, Radha

doi:10.1016/j.jcis.2011.06.030

Cited by 40 publications

(11 citation statements)

References 41 publications

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“…For these reasons, the adsorption properties of the obtained materials in relation to thorium ions were investigated. The adsorption of thorium ions on zeolites and mesoporous materials is a widely studied subject [23][24][25][26][27]. Thorium seems to be the element broadly applied in the future, therefore, the sorption properties of the new MCF/NaY foams composites relative to thorium(IV) ions were examined in this work.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of new mesostructured cellular foams (MCFs) with NaY zeolite and their application to sorption of thorium ions

Pikus

Zienkiewicz-Strzałka

Skibińska

2019

Materials Science-Poland

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The paper presents the new way of preparation of MCF foams with NaY zeolite. Significant changes in the amount of micro and mesopores in relation to the amount of NaY zeolite and 1,3,5-trimethylbenzene (TMB) added during the synthesis was observed. It suggests the possibility of controlling the micro/mesopores ratio by applying the proposed method. Environmental aspects of using new MCF/NaY foams is related to the adsorption of thorium ions (Th +4 ). The term of "MCF/NaY materials" refers to the general name of the material without referring to the content and state of zeolite. The obtained materials were highly effective in relation to Th +4 . The adsorption capacity was greater when the number of micropores was lower. The dependence of adsorption capacity of Th +4 ions on aluminum atoms content was also confirmed.

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Section: Introductionmentioning

confidence: 99%

Synthesis of new mesostructured cellular foams (MCFs) with NaY zeolite and their application to sorption of thorium ions

Pikus

Zienkiewicz-Strzałka

Skibińska

2019

Materials Science-Poland

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“…The sorption behaviors and interaction mechanisms of the solid-liquid phase interface of Th(IV) with various traditional environment-associated materials, such as hematite, 8 bentonite, 9 zeolites 10 and muscovite, 11 etc., have been extensively studied. For instance, Sharma and co-workers 10 studied the sorption behavior of Th(IV) on zeolite, and found that the sorption capacity increased largely with increasing solution pH a Group of Nuclear Energy Nano-chemistry, Key Laboratory of Nuclear Radiation and Nuclear Energy Technology and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China. E-mail: shiwq@ihep.ac.cn; zfchai@suda.edu.cn b School of Nuclear Engineering and Geophysics, East China Institute of Technology, Nanchang 330013, China and temperature.…”

Section: Introductionmentioning

confidence: 99%

Interactions between Th(iv) and graphene oxide: experimental and density functional theoretical investigations

Bai

Wang

et al. 2014

RSC Adv.

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“…[28] For TiO 2 (P25), ZnSTiO 2 _0.02, ZnS-TiO 2 _0.06 and ZnS-TiO 2 _0.08, the specific surface areas determined by BET isotherms were 71.8, 79.5, 68.5 and 65.9 m 2 .g ¡1 , respectively. Interestingly, the surface area determined for Degussa's TiO 2 (P25) was different (50 § 15 m 2 .g ¡1 ) of that reported by other authors.…”

Section: Nanocomposites Characterizationmentioning

confidence: 95%

Biotechnologically obtained nanocomposites: A practical application for photodegradation of Safranin-T under UV-Vis and solar light

Costa

Girão

Monteiro

et al. 2015

Journal of Environmental Science and Health, Part A

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This research was undertaken to determine the potential of biologically obtained ZnS-TiO2 nanocomposites to be used as catalysts in the photodegradation of organic pollutants, namely, Safranin-T. The photocatalysts were prepared by modifying the surface of commercial TiO2 particles with naturally produced ZnS, using sulfide species produced by sulfate-reducing bacteria and metal contaminated wastewaters. Comparative studies using powder X-ray diffraction (XRD) and scanning electron microscopy (SEM), prior and after photodegradation, were carried out in order to monitor possible structural and morphological changes on the particles. Adsorption properties and specific areas were determined by the Brunauer-Emmet-Teller (BET) method. The final solutions were characterized by UV-Vis and chemical oxygen demand (COD) content in order to determine Safranin-T concentration and toxicity. The influence of the catalyst amount, initial pH and dye concentration was also evaluated. Finally, the efficiency of the precipitates as catalysts in sunlight-mediated photodegradation was investigated, performing two scale experiments by using different volumes of dye-contaminated water (150 mL and 10 L). All tested composites showed potential to be used as photocatalysts for the degradation of Safranin-T, although the ZnS-TiO2_0.06 composite (0.06 g of TiO2 per 50 mL of the zinc solution) was the most effective. This substantiates the applicability of these biologically obtained materials as efficient photocatalysts for the degradation of organic pollutants, in laboratorial conditions and under direct sunlight.

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Sorption behaviour of nanocrystalline MOR type zeolite for Th(IV) and Eu(III) removal from aqueous waste by batch treatment

Cited by 40 publications

References 41 publications

Synthesis of new mesostructured cellular foams (MCFs) with NaY zeolite and their application to sorption of thorium ions

Synthesis of new mesostructured cellular foams (MCFs) with NaY zeolite and their application to sorption of thorium ions

Interactions between Th(iv) and graphene oxide: experimental and density functional theoretical investigations

Biotechnologically obtained nanocomposites: A practical application for photodegradation of Safranin-T under UV-Vis and solar light

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