Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics
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2015
Authors
Đukić, Anđelka B.Kumrić, Ksenija R.

Vukelić, Nikola S.

Stojanović, Zoran S.

Stojmenović, Marija D.

Milošević, Sanja S.

Matović, Ljiljana Lj.

Article (Published version)

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The aim of the present study was to investigate the effect of ageing of mechanochemically synthesized clay and its TiO2composite on the simultaneous removal of Pb(II), Cd(II), Cu(II) and Zn(II) ions from acidic aqueous solutions. The effect of different ageing times on sorption behavior of 1, 2, 10 and 19 h milled clays, as well as the clay composite with 20 wt% of amorphous TiO2(TiO2,a), was investigated. Ageing of the milled clays has stronger influence on the removal of Zn(II) and Cd(II) than on the removal of Pb(II) and Cu(II) ions. Ageing is particularly pronounced for the samples milled for 1, 2 and 10 h (which lost enhanced sorption properties after 3 months of ageing), and less pronounced for the samples milled longer period of time, 19 h (which retained sorption properties until 6 months). After these periods of time sorption capacities became nearly the same as the sorption capacities of the raw (unmilled) clay. The different responses on the ageing process of milled clays an...d composite are a consequence of microstructural changes such as recrystallization of montmorillonite phase and decrease in particle sizes. Slower ageing of composite compare to the milled clays can be related to the stabilization effect of TiO2particles which are dispersed in the clay matrix thus preventing recrystallization of the sample particles. Only a slight tendency towards the formation of agglomerations was noticed after 12 months of ageing. © 2014 Elsevier Ltd and Techna Group S.r.l.
Keywords:
milling / ageing / composites / clays / TiO2Source:
Ceramics International, 2015, 41, 3, 5129-5137Publisher:
- Elsevier
Funding / projects:
- Physics and Chemistry with Ion Beams (RS-45006)
- Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine (RS-45012)
DOI: 10.1016/j.ceramint.2014.12.085
ISSN: 0272-8842
WoS: 000350180600113
Scopus: 2-s2.0-84965071399
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Đukić, Anđelka B. AU - Kumrić, Ksenija R. AU - Vukelić, Nikola S. AU - Stojanović, Zoran S. AU - Stojmenović, Marija D. AU - Milošević, Sanja S. AU - Matović, Ljiljana Lj. PY - 2015 UR - https://dais.sanu.ac.rs/123456789/3526 AB - The aim of the present study was to investigate the effect of ageing of mechanochemically synthesized clay and its TiO2composite on the simultaneous removal of Pb(II), Cd(II), Cu(II) and Zn(II) ions from acidic aqueous solutions. The effect of different ageing times on sorption behavior of 1, 2, 10 and 19 h milled clays, as well as the clay composite with 20 wt% of amorphous TiO2(TiO2,a), was investigated. Ageing of the milled clays has stronger influence on the removal of Zn(II) and Cd(II) than on the removal of Pb(II) and Cu(II) ions. Ageing is particularly pronounced for the samples milled for 1, 2 and 10 h (which lost enhanced sorption properties after 3 months of ageing), and less pronounced for the samples milled longer period of time, 19 h (which retained sorption properties until 6 months). After these periods of time sorption capacities became nearly the same as the sorption capacities of the raw (unmilled) clay. The different responses on the ageing process of milled clays and composite are a consequence of microstructural changes such as recrystallization of montmorillonite phase and decrease in particle sizes. Slower ageing of composite compare to the milled clays can be related to the stabilization effect of TiO2particles which are dispersed in the clay matrix thus preventing recrystallization of the sample particles. Only a slight tendency towards the formation of agglomerations was noticed after 12 months of ageing. © 2014 Elsevier Ltd and Techna Group S.r.l. PB - Elsevier T2 - Ceramics International T1 - Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics SP - 5129 EP - 5137 VL - 41 IS - 3 DO - 10.1016/j.ceramint.2014.12.085 UR - https://hdl.handle.net/21.15107/rcub_dais_3526 ER -
@article{ author = "Đukić, Anđelka B. and Kumrić, Ksenija R. and Vukelić, Nikola S. and Stojanović, Zoran S. and Stojmenović, Marija D. and Milošević, Sanja S. and Matović, Ljiljana Lj.", year = "2015", abstract = "The aim of the present study was to investigate the effect of ageing of mechanochemically synthesized clay and its TiO2composite on the simultaneous removal of Pb(II), Cd(II), Cu(II) and Zn(II) ions from acidic aqueous solutions. The effect of different ageing times on sorption behavior of 1, 2, 10 and 19 h milled clays, as well as the clay composite with 20 wt% of amorphous TiO2(TiO2,a), was investigated. Ageing of the milled clays has stronger influence on the removal of Zn(II) and Cd(II) than on the removal of Pb(II) and Cu(II) ions. Ageing is particularly pronounced for the samples milled for 1, 2 and 10 h (which lost enhanced sorption properties after 3 months of ageing), and less pronounced for the samples milled longer period of time, 19 h (which retained sorption properties until 6 months). After these periods of time sorption capacities became nearly the same as the sorption capacities of the raw (unmilled) clay. The different responses on the ageing process of milled clays and composite are a consequence of microstructural changes such as recrystallization of montmorillonite phase and decrease in particle sizes. Slower ageing of composite compare to the milled clays can be related to the stabilization effect of TiO2particles which are dispersed in the clay matrix thus preventing recrystallization of the sample particles. Only a slight tendency towards the formation of agglomerations was noticed after 12 months of ageing. © 2014 Elsevier Ltd and Techna Group S.r.l.", publisher = "Elsevier", journal = "Ceramics International", title = "Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics", pages = "5129-5137", volume = "41", number = "3", doi = "10.1016/j.ceramint.2014.12.085", url = "https://hdl.handle.net/21.15107/rcub_dais_3526" }
Đukić, A. B., Kumrić, K. R., Vukelić, N. S., Stojanović, Z. S., Stojmenović, M. D., Milošević, S. S.,& Matović, L. Lj.. (2015). Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics. in Ceramics International Elsevier., 41(3), 5129-5137. https://doi.org/10.1016/j.ceramint.2014.12.085 https://hdl.handle.net/21.15107/rcub_dais_3526
Đukić AB, Kumrić KR, Vukelić NS, Stojanović ZS, Stojmenović MD, Milošević SS, Matović LL. Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics. in Ceramics International. 2015;41(3):5129-5137. doi:10.1016/j.ceramint.2014.12.085 https://hdl.handle.net/21.15107/rcub_dais_3526 .
Đukić, Anđelka B., Kumrić, Ksenija R., Vukelić, Nikola S., Stojanović, Zoran S., Stojmenović, Marija D., Milošević, Sanja S., Matović, Ljiljana Lj., "Influence of ageing of milled clay and its composite with TiO2on the heavy metal adsorption characteristics" in Ceramics International, 41, no. 3 (2015):5129-5137, https://doi.org/10.1016/j.ceramint.2014.12.085 ., https://hdl.handle.net/21.15107/rcub_dais_3526 .