Novel electroblowing synthesis of tin dioxide and composite tin dioxide/silicon dioxide submicron fibers for cobalt(II) uptake

Show full item record



Permalink

http://hdl.handle.net/10138/329556

Citation

Paajanen , J , Weintraub , S , Lönnrot , S , Heikkilä , M , Vehkamäki , M , Kemell , M , Hatanpää , T , Ritala , M & Koivula , R 2021 , ' Novel electroblowing synthesis of tin dioxide and composite tin dioxide/silicon dioxide submicron fibers for cobalt(II) uptake ' , RSC Advances , vol. 11 , no. 25 , pp. 15245-15257 . https://doi.org/10.1039/D1RA01559A

Title: Novel electroblowing synthesis of tin dioxide and composite tin dioxide/silicon dioxide submicron fibers for cobalt(II) uptake
Author: Paajanen, Johanna; Weintraub, Saara; Lönnrot, Satu; Heikkilä, Mikko; Vehkamäki, Marko; Kemell, Marianna; Hatanpää, Timo; Ritala, Mikko; Koivula, Risto
Contributor organization: Department of Chemistry
Mikko Ritala / Principal Investigator
Date: 2021-05-04
Language: eng
Number of pages: 13
Belongs to series: RSC Advances
ISSN: 2046-2069
DOI: https://doi.org/10.1039/D1RA01559A
URI: http://hdl.handle.net/10138/329556
Abstract: Nanoscale SnO2 has many important properties ranging from sorption of metal ions to gas sensing. Using a novel electroblowing method followed by calcination, we synthesized SnO2 and composite SnO2/SiO2 submicron fibers with a Sn : Si molar ratio of 3 : 1. Different calcination temperatures and heating rates produced fibers with varying structures and morphologies. In all the fibers SnO2 was detected by XRD indicating the SnO2/SiO2 fibers to be composite instead of complete mixtures. We studied the Co2+ separation ability of the fibers, since Co-60 is a problematic contaminant in nuclear power plant wastewaters. Both SnO2 and SnO2/SiO2 fibers had an excellent Co2+ uptake with their highest uptake/K-d values being 99.82%/281 000 mL g(-1) and 99.79%/234 000 mL g(-1), respectively. Compared to the bare SnO2 fibers, the SiO2 component improved the elasticity and mechanical strength of the composite fibers which is advantageous in dynamic column operation.
Subject: 116 Chemical sciences
ION-EXCHANGE PROPERTIES
SENSING PROPERTIES
NANOSIZED SNO2
METAL-IONS
OXIDE
ADSORPTION
NANOFIBERS
KINETICS
SORPTION
REMOVAL
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
d1ra01559a.pdf 2.888Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record