Sorption of cations of heavy metals and radionuclides from the aqueous media by new synthetic zeolite-like sorbent

Shilina, Alla Sergeevna; Bakhtin, Viktor Dmitrievich; Burukhin, S.B.; Askhadullin, S.R.

doi:10.1016/j.nucet.2017.10.001

Cited by 14 publications

(4 citation statements)

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“…B. Philippe et al reported in their work with K. Edstrom the transformation of the electrolyte to a more phosphates-related species and associated that with the loss in capacity and loss in stability of the cell. Similar findings in literature also match the work presented here to a high degree [38,[41][42][43][44][45].…”

Section: X-ray Photoelectron Spectroscopy (Xps)supporting

confidence: 93%

BaTiO₃‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

Amli

Walwyn

Ahmed

2021

The Journal of Engineering

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Silicon anodes are vital for the next generation ultra-high capacity rechargeable lithium-ion batteries. This study investigates ultrasmall silicon nanopowder (30-40 nm) as an anode material. Its high capacity > 3700 mAh/g makes it attractive, given the current theoretical capacity of graphite is ten times lower (370 mAh/g). However, it has severe instability due to volume expansion of silicon particles during charging. Hence, BaTiO 3 nanomaterial was used to stabilise the cycling ability and improve the capacity. This study showed that silicon anode with BaTiO 3 retained 40% of its original capacity after the 100th cycle where the silicon anode without BaTiO 3 lost almost all of its capacity. The silicon anode with BaTiO 3 also managed to regain and sustain ∼800 mAh/g of its capacity at slow charging rate compared to the silicon anode without BaTiO 3 . Water was used as a solvent and the basic changes in oxidation states of the silicon anode were investigated using X-ray photoemission spectroscopy and proved the creation of CO x at different rates of repeated cycling. The work also provides detailed mapping of the different stages as the silicon nanopowder undergoes cycling. It provides a simple and effective way of synthesising and testing nearly pure silicon anodes.

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Section: X-ray Photoelectron Spectroscopy (Xps)supporting

confidence: 93%

BaTiO₃‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

Amli

Walwyn

Ahmed

2021

The Journal of Engineering

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“…Biosorption is defined as a process in which substances of aqueous phase are removed by passive bonds created between the substrate and the dead biomass or derived materials [2]. Many data in the literature have been used to describe the biosorption process the following terms; sorption, bio-adsorption, and removal regarding organic and inorganic pollutants [15,27,45,49,139]. This interfacial phenomenon, should not be confused with the accumulation or bioaccumulation that indicates the absorption.…”

Section: Adsorptionmentioning

confidence: 99%

Algal Biomass Valorization for the Removal of Heavy Metal Ions

Boukarma

Aziam

Abali

et al. 2021

Inorganic-Organic Composites for Water and Wastewater Treatment

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Pollution generated by wastewater containing inorganic pollutants, such as heavy metals, has always been considered a real problem for our planet. Therefore, the removal of these micropollutants from polluted water is a valuable intervention to preserve human health and the environment. Many conventional methods are used today to treat wastewater, such as membrane filtration, chemical precipitation, ion exchange, and adsorption by activated carbon, but the operating cost they generate has restricted their use. To overcome this limitation, scientists have focused for always on the application of marine resources to clean up the environment. The adsorption of heavy metals by biosorbents obtained from algae has been widely studied for wastewater treatment, as the exploitation of this biomass has the advantage of being a low cost, renewable and abundant biological raw material, and its use as a biosorbent is also a great alternative to activated carbon. The sorption capacity of the vegetable adsorbent is depending on chemical constitution of their cell wall and the presence of macromolecules with various functional groups that interact with metal ions. We review in this chapter, (1) the challenges associated with heavy metals, such as water pollution, hazardous effects, and their removal techniques including biosorption based on algae biopolymers, such as alginate and carrageenan, (2) the main chemical and structural compounds of macroalgae responsible for the metal ions removal, (3) current knowledge on the potential of macroalgae regarding their pharmacological applications and possible biosorbents prepared from them for the removal of metal ions from aqueous solutions.

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“…In resource-constrained settings like Kazakhstan, quartz sand serves as a readily available and cost-effective filtering material in drinking water treatment systems. Nonetheless, zeolites and coals, including those indigenous to Kazakhstan, demonstrate notable sorption capabilities against organic contaminants, heavy metals, and radionuclides [43][44][45][46]. Published findings suggest that sand filters could be replaced effectively by aluminosilicate filter media [47], and zeolites have shown promise in microplastic treatment in wastewater [48], while granular coals, when combined with ion exchange and microfiltration, have demonstrated efficacy in removing certain microplastic types [49].…”

Section: Introductionmentioning

confidence: 99%

Sorption-Based Removal Techniques for Microplastic Contamination of Tap Water

Salikova,

Kerimkulova,

Rodrigo-Ilarri

et al. 2024

Water

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This study investigates the presence of microplastics in tap drinking water and evaluates the efficacy of various sorbents for their removal in the context of Kazakhstan’s water treatment system. Water samples taken in the cities of Kokshetau and Krasny Yar (Akmola region) were analyzed. Microplastics were detected in all samples, with concentrations ranging from 2.0 × 10−2 to 6.0 × 10−2 particles/dm3, predominantly in fiber form (74.1%). Outdated technologies and non-compliance with treatment regimens contribute to poor water quality, including high turbidity (87% of samples), color deviations (40% of samples), and acidity issues (20% of samples). To address these challenges, the study examined the sorption efficiency of different sorbents, with results indicating high retention rates (82.7–97.8%) for microplastic particles. Notably, aliphatic structures like PE and PP exhibited higher retention than PET. Among the sorbents tested, the synthesized carbon sorption material (CSM) demonstrated the highest efficiency in both microplastic retention and improvement in water quality parameters, making it a promising option for water treatment facilities and household filters.

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Sorption of cations of heavy metals and radionuclides from the aqueous media by new synthetic zeolite-like sorbent

Cited by 14 publications

References 0 publications

BaTiO₃‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

BaTiO₃‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

Algal Biomass Valorization for the Removal of Heavy Metal Ions

Sorption-Based Removal Techniques for Microplastic Contamination of Tap Water

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Sorption of cations of heavy metals and radionuclides from the aqueous media by new synthetic zeolite-like sorbent

Cited by 14 publications

References 0 publications

BaTiO3‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

BaTiO3‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

Algal Biomass Valorization for the Removal of Heavy Metal Ions

Sorption-Based Removal Techniques for Microplastic Contamination of Tap Water

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Product

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BaTiO₃‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries

BaTiO₃‐doped silicon nanocomposite anodes capacity enhancement for ultra‐high capacity rechargeable lithium‐ion batteries