Journal
MATERIALS
Volume 13, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/ma13092160
Keywords
pectin; sorption; cesium ion removal; Prussian blue; pectin-based biosorbent
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Funding
- National Science Centre, Poland under PRELUDIUM grant [UMO-2017/27/N/ST8/02854]
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In this paper, beads-shaped hybrid sorbents composed of pectin and Prussian blue were prepared. Various ratios of pectin and Prussian blue in hybrid sorbents were tested. Obtained sorbents had high and roughly constant sorption capacity in a broad pH range (4-10), in which also the swelling index and stability of sorbents were satisfactory. The preliminary sorption studies proved that almost 100% of cesium removal efficiency may be achieved by using the proper sorbent dose. The sorption capacity of the hybrid sorbent with a 1:1 ratio of pectin to Prussian blue equaled q = 36.5 +/- 0.8 mg/g (dose 3 g/L, pH = 6, temp. = 22 +/- 1 degrees C, t = 24 h). The obtained results showed that the prepared hybrid pectin-based sorbents are promising for cesium ions removal.
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