| Autor: |
Aleksandar D. Marinković, Jelena Rusmirović, Maja Đolić, Zlate Veličković, Ana Popović |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Proceedings of the 34th International Congress on Process Industry. |
| Popis: |
Research goal of this paper represents a novel method of synthesis of an amino-modified, highly effective natural polymer adsorbent kraft lignin based, functionalized with magnetite nanoparticles, for effective removal of chromate anions from water solution. Amino-modified lignin microspheres (LMS-NM) were synthesized via inverse suspension copolymerization of kraft lignin with poly(ethylene imine) grafting-agent and epichlorohydrin cross-linker. The porous structure of the synthesized adsorbent was formed using a 5.0 wt.% sodium-alginate solution. Additional efficiency in the removal of chromium anions from water was achieved by functionalization of lignin microspheres with magnetite (NM) nanoparticles obtained by co-precipitation and additional introduction of amino groups. Structure of formed LMS-NM was confirmed via Furrier Transform Infrared (FTIR) Spectroscopy. Optical microscopy analyses showed the creation of sphere-shaped materials and showed the diameter of prepared LMS-NM in the range of 500 to 800 µm. The removal of chromate anions from water solution was performed in a batch system. The result confirmed high adsorption efficiency and potential application of this nature-based adsorbent for heavy metal anions removal. This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia, as part of the following projects: 451-03-9/2021-14/200325 and 451-03-9/2021-14/200135, with the contribution of the COST Action CA17128. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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