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Featured researches published by Agne Bankauskaite.


Desalination and Water Treatment | 2015

A study on the intercalation of heavy metal ions in a wastewater by synthetic layered inorganic adsorbents

Agne Bankauskaite; Anatolijus Eisinas; Kestutis Baltakys; Skirmante Zadaviciute

AbstractThis study examined the intercalation mechanism of Co2+, Ni2+, Zn2+, Mn2+ and Fe3+ ions into synthetic layered inorganic adsorbents—hydrotalcite and gyrolite under different conditions. It was observed that the process parameters above depend on the chemical nature of both solutions and adsorbents. An extremely high and selective uptake of Fe3+ ions was observed in both cases (~98–99%). The selectivity sequence of studied metal ions by gyrolite can be written as follows: Co2+ > Zn2+/Mn2+/Ni2+ > Fe3+, while with calcined hydrotalcite: Co2+/Ni2+/Mn2+ > Zn2+ > Fe3+. It was determined that, during simultaneous adsorption, the intercalation of heavy metal ions into the structure of gyrolite or calcined hydrotalcite proceeds differently, because the amount of adsorbed Mex+ ions is higher than the amount of leached Ca2+ and Mg2+ ions, resulting in the occurrence of two types of chemical reactions – substitution and addition. It should be noted that almost all heavy metal ions (~99.84%) are chemisorbed by...


Advances in Materials Science and Engineering | 2016

The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC

Jolanta Doneliene; Anatolijus Eisinas; Kestutis Baltakys; Agne Bankauskaite

The effect of synthetic CAH (130°C; 8 h; CaO/(SiO2 + Al2O3) = 0.55; Al2O3/(SiO2 + Al2O3) = 0.1, 0.15) with different crystallinity on the hydration kinetics of OPC at early stages of hydration was investigated. Also, the formation mechanism of compounds during OPC hydration was highlighted. It was determined that the synthetic CAH accelerated the initial reaction and shortened the induction period. Also, the second and third exothermic reactions begun earlier, and, during the latter reaction, the higher values of the heat flow were obtained in comparison with pure OPC samples. At later stages of hydration, synthetic CAH affect the OPC hydration as the usual pozzolanic additives; moreover, the larger values of cumulative heat were reached. It should be noted that the nature of synthetic CAH samples accelerated the dissolution of gypsum and stimulates the earliest C3S hydration.


Journal of Thermal Analysis and Calorimetry | 2017

The stability of formed CaF2 and its influence on the thermal behavior of C-S-H in CaO-silica gel waste-H2O system

Aliona Iljina; Kestutis Baltakys; Agne Bankauskaite; Anatolijus Eisinas; Saulius Kitrys


Journal of Thermal Analysis and Calorimetry | 2017

The effect of microwave and hydrothermal treatments on the properties of hydrotalcite: A comparative study

S. Zadaviciute; Kestutis Baltakys; Agne Bankauskaite


Journal of Thermal Analysis and Calorimetry | 2015

Thermal, texture and reconstruction properties of hydrotalcites substituted with Na + or K + ions

Agne Bankauskaite; Kestutis Baltakys


Journal of Thermal Analysis and Calorimetry | 2015

Thermal properties and application of silica gel waste contaminated with F− ions for C-S-H synthesis

Kestutis Baltakys; Aliona Iljina; Agne Bankauskaite


Journal of Thermal Analysis and Calorimetry | 2014

Modified hydrotalcites application as precursors for (Na,K)Mg/Al spinel-type compounds formation

Agne Bankauskaite; Kestutis Baltakys; Gundars Mezinskis


Journal of Thermal Analysis and Calorimetry | 2018

The study of C P determination of hydrotalcite intercalated with heavy metal ions

S. Zadaviciute; Agne Bankauskaite; Kestutis Baltakys; Anatolijus Eisinas


Journal of Thermal Analysis and Calorimetry | 2017

Simultaneous adsorption at 25 °C and the peculiarities of gyrolite substituted with heavy metals

S. Zadaviciute; Kestutis Baltakys; Anatolijus Eisinas; Agne Bankauskaite


Journal of Thermal Analysis and Calorimetry | 2018

The effect of calcination temperature on the texture of silica gel waste

Tadas Dambrauskas; Kestutis Baltakys; V. Rudelis; Agne Bankauskaite

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Kestutis Baltakys

Kaunas University of Technology

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Anatolijus Eisinas

Kaunas University of Technology

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S. Zadaviciute

Kaunas University of Technology

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Aliona Iljina

Kaunas University of Technology

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Jolanta Doneliene

Kaunas University of Technology

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Monika Stankeviciute

Kaunas University of Technology

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R. Siauciunas

Kaunas University of Technology

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Saulius Kitrys

Kaunas University of Technology

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Tadas Dambrauskas

Kaunas University of Technology

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V. Rudelis

Kaunas University of Technology

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