Zinc ions pillared vanadate cathodes by chemical pre-intercalation towards long cycling life and low-temperature zinc ion batteries

Microbial-induced degradation of aromatic organic compounds and mineralization of zinc ions have attracted much attention because of its low cost, simple operation and quick response. This research, toluene was decomposed and made the concentration of carbonate ions increased accordingly by the enzymatic pressing of microorganisms, meanwhile carbonate ions mineralized zinc ions into carbonate precipitations. The composition and microstructure were analyzed systematically. The analysis results indicated that carbonate precipitations, basic zinc carbonate, could be successfully prepared by microbial method. The particle size of basic zinc carbonate was nanometer, and its shape was near-spherical. Furthermore, the phase composition, functional groups and surface morphology of the precipitations prepared by different methods were basically the same. This work provided a new method for remediation of zinc ion pollution based on the degradation of toluene.

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Removal of Zinc ions from industrial wastewater with wool fibers

Baghdad Science Journal ◽

10.21123/bsj.7.3.1193-1201 ◽

2010 ◽

Vol 7 (3) ◽

pp. 1193-1201

Author(s):

Baghdad Science Journal

Keyword(s):

Acid Concentration ◽

Contact Time ◽

Industrial Wastewater ◽

Metal Ion ◽

Low Cost ◽

Zinc Ion ◽

Ion Concentration ◽

Natural Material ◽

Zinc Ions ◽

Wool Fibers

In this research, the efficiency of low-cost unmodified wool fibers were used to remove zinc ion from industrial wastewater. Removal of zinc ion was achieved at 99.52% by using simple wool column. The experiment was carried out under varying conditions of (2h) contact time, metal ion concentration (50mg/l), wool fibers quantity to treated water (70g/l), pH(7) & acid concentration (0.05M). The aim of this method is to use a high sensitive, available & cheep natural material which applied successfully for industrial wastewater& synthetic water, where zinc ion concentration was reduced from (14.6mg/l) to (0.07mg/l) & consequently the hazardous effect of contamination was minimized.

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Defect Promoted Capacity and Durability of N‐MnO 2– x Branch Arrays via Low‐Temperature NH 3 Treatment for Advanced Aqueous Zinc Ion Batteries

Small ◽

10.1002/smll.202005923 ◽

2020 ◽

Vol 16 (42) ◽

pp. 2005923

Author(s):

Yan Zhang ◽

Shengjue Deng ◽

Mi Luo ◽

Guoxiang Pan ◽

Yinxiang Zeng ◽

...

Keyword(s):

Low Temperature ◽

Zinc Ion

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Toward Flexible Zinc‐Ion Hybrid Capacitors with Superhigh Energy Density and Ultralong Cycling Life: The Pivotal Role of ZnCl 2 Salt‐Based Electrolytes

Angewandte Chemie ◽

10.1002/ange.202012030 ◽

2020 ◽

Vol 133 (2) ◽

pp. 1003-1010

Author(s):

Cheng Wang ◽

Zengxia Pei ◽

Qiangqiang Meng ◽

Chunmei Zhang ◽

Xiao Sui ◽

...

Keyword(s):

Energy Density ◽

Zinc Ion ◽

Pivotal Role ◽

Superhigh Energy ◽

Hybrid Capacitors ◽

Cycling Life

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Development of flow injection analysis-solid phase extraction based on ion imprinted polymeric nanoparticles as an efficient and selective technique for preconcentration of zinc ions from aqueous solution

New Journal of Chemistry ◽

10.1039/c7nj00893g ◽

2017 ◽

Vol 41 (17) ◽

pp. 8828-8836 ◽

Cited By ~ 10

Author(s):

Fereshteh Fereidoonipour ◽

Hamid Reza Rajabi

Keyword(s):

Solid Phase Extraction ◽

Flow Injection ◽

Flow Injection Analysis ◽

Solid Phase ◽

Polymeric Nanoparticles ◽

Zinc Ion ◽

Phase Extraction ◽

Zinc Ions ◽

Ion Imprinted ◽

Separation And Preconcentration

Here, a new flow injection analysis-solid phase extraction (FIA-SPE) technique was developed by using zinc ion imprinted polymeric nanoparticles (Zn-IIP NPs) for the separation and preconcentration of Zn2+ions from aqueous solutions.

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Zinc ion adsorption on carbon nanotubes in an aqueous solution

Polish Journal of Chemical Technology ◽

10.2478/v10026-012-0081-6 ◽

2012 ◽

Vol 14 (3) ◽

pp. 29-37 ◽

Cited By ~ 12

Author(s):

A. Ansari ◽

M.A. Mehrabian ◽

H. Hashemipour

Keyword(s):

Carbon Nanotubes ◽

Molecular Dynamics ◽

Adsorption Process ◽

Electrostatic Force ◽

Zinc Ion ◽

Dynamics Simulation ◽

Ion Adsorption ◽

Zinc Ions ◽

Interaction Energies ◽

Water Layers

The literature devoted to numerical investigation of adsorption of heavy metal ions on carbon nanotubes is scarce. In this paper molecular dynamics is used to simulate the adsorption process and to investigate the effect of the infl uencing parameters on the rate of adsorption. The predictions of the molecular dynamics simulation show that the adsorption process is improved with increasing the temperature, pH of solution, the mass of nanotubes, and surface modifi cation of CNT using hydroxyl and carboxyl functional groups. The results predicted by the model are compared with the experimental results available in the literature; the close agreement validates the accuracy of the predictions. This study reveals that the water layers around the carbon nanotubes and the interaction energies play important roles in the adsorption process. The study also shows that electrostatic force controls the attraction of zinc ions on the nanotube sidewall.

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Dinâmica Molecular Ab Initio da Complexarão de Íons zinco com a vitamina C em Fase Gasosa

10.21826/viiiseedmol2020166 ◽

2020 ◽

Author(s):

Wilson Roberto Lopes Filho ◽

Yago F. Lopes ◽

Lilian T. F. de M. Camargo ◽

Ademir J. Camargo

Keyword(s):

Molecular Dynamics ◽

Vitamin C ◽

Ab Initio ◽

High Stability ◽

Average Distance ◽

Zinc Ion ◽

Food Supplement ◽

The Body ◽

New Drugs ◽

Zinc Ions

Zinc and vitamin C are essential micronutrients for the conservation of the human body, being essential for the maintenance of the immune system, reducing the risk, severity and duration of infectious diseases. They are taken together as a food supplement, resulting in the improvement of pneumonia and malaria infections. Vitamin C and zinc are also associated with measures of obesity and adiposity. Studies report that vitamin C complexed in zinc promotes adipogenesis and stimulates the generation of insulin-responsive adipocytes. Therefore, since vitamin C together with zinc are fundamental for the body, and that vitamin C complexed with zinc can promote adipogenesis and stimulate the generation of adipocytes responsive to insulin, the study of the interaction between these micronutrients will broaden the understanding of its bioactivity, which may be important in the study of a new use of vitamin C and zinc combined. Thus, it is intended to study the complexation of Vitamin C with the zinc ion using simulations of Molecular Dynamics ab initio. Through the results of the dynamics, it is found that zinc interacted significantly with 3 atoms of vitamin C, thus identifying the formation of a tridentate complex, since the average distances between the metal and these atoms were between 2.176 and 2.261 Å. A decrease in the free Helmholtz energy is perceived as the zinc approaches these atoms, up to a distance of high stability, which corresponds to the average distance of these interactions. It is also evident that the complexation energy is -220,64 Kcal/mol indicating that the complexation is energetically favorable and that the complex formed is stable. Therefore, the results obtained broadened the knowledge about the complexation of zinc ions with vitamin C, which will be of great importance for the understanding of its bioactivity and in the planning of new drugs.

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The effects of zinc and magnesium ingestion on essential trace-element accumulation in the organs of white rats upon cadmium exposure

BIO Web of Conferences ◽

10.1051/bioconf/20202700110 ◽

2020 ◽

Vol 27 ◽

pp. 00110

Author(s):

Svetlana Nikolaevna Timofeeva ◽

Ilnur Ravilevich Kadikov ◽

Andrey Aleksandrovich Korchemkin ◽

Iskander Foatovich Vafin

Keyword(s):

Health And Safety ◽

Toxic Metal ◽

Wistar Rat ◽

Zinc Ion ◽

Essential Elements ◽

Zinc Ions ◽

Magnesium Ions ◽

White Rats ◽

Irreparable Harm ◽

Iron And Zinc

Due to high athropogenic loads on the environment, issues surrounding public health and safety in consumable products are being raised with ever-increasing frequency. One toxic metal, whose consumption results in irreparable harm to the health of animals and human is cadmium. To antagonize such toxic effects to human health, magnesium and zinc are considered being essential elements and their combination effects warrant further studies. To this end, we developed a Wistar rat model to look at the combinatorial effects of cadmium with magnesium and zinc consumption on the accumulation of iron and zinc ions in kidney and liver tissues. Our findings suggested that exposure to cadmium ions reduced zinc ion levels in the liver and kidneys, reduced iron ions in the liver (but were increased in the kidneys), decreased magnesium ions in the kidneys but increased their levels within the liver. Moreover, while the consumption of magnesium and zinc ions individually, partially reduced the effects caused by cadmium consumption alone, the simultaneous consumption of zinc and magnesium ions proved to be significantly more effective.

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Pro-Oxidant Activity of an ALS-Linked SOD1 Mutant in Zn-Deficient Form

Molecules ◽

10.3390/molecules25163600 ◽

2020 ◽

Vol 25 (16) ◽

pp. 3600

Author(s):

Chise Nagao ◽

Kunisato Kuroi ◽

Taiyu Wakabayashi ◽

Takakazu Nakabayashi

Keyword(s):

Oxidative Stress ◽

Reactive Oxygen Species ◽

Copper Ions ◽

Zinc Ion ◽

Zinc Ions ◽

Oxygen Species ◽

Oxidative Property ◽

Sod1 Mutant ◽

Lateral Sclerosis ◽

In Cells

Cu, Zn superoxide dismutase (SOD1) is a representative antioxidant enzyme that catalyzes dismutation of reactive oxygen species in cells. However, (E,E)-SOD1 mutants in which both copper and zinc ions were deleted exhibit pro-oxidant activity, contrary to their antioxidant nature, at physiological temperatures, following denaturation and subsequent recombination of Cu2+. This oxidative property is likely related to the pathogenesis of amyotrophic lateral sclerosis (ALS); however, the mechanism by which Cu2+ re-binds to the denatured (E,E)-SOD1 has not been elucidated, since the concentration of free copper ions in cells is almost zero. In this study, we prepared the (Cu,E) form in which only a zinc ion was deleted using ALS-linked mutant H43R (His43→Arg) and found that (Cu,E)-H43R showed an increase in the pro-oxidant activity even at physiological temperature. The increase in the pro-oxidant activity of (Cu,E)-H43R was also observed in solution mimicking intracellular environment and at high temperature. These results suggest that the zinc-deficient (Cu,E) form can contribute to oxidative stress in cells, and that the formation of (E,E)-SOD1 together with the subsequent Cu2+ rebinding is not necessary for the acquisition of the pro-oxidant activity.

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