https://scholars.lib.ntu.edu.tw/handle/123456789/430846
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Hashimoto, Yohey | en_US |
dc.contributor.author | Kobayashi, Kazuki | en_US |
dc.contributor.author | SHAN-LI WANG | en_US |
dc.creator | Hashimoto, Yohey;Kobayashi, Kazuki;SHAN-LI WANG | - |
dc.date.accessioned | 2019-11-04T06:42:18Z | - |
dc.date.available | 2019-11-04T06:42:18Z | - |
dc.date.issued | 2020-02-05 | en |
dc.date.issued | 2020 | - |
dc.identifier.issn | 03043894 | en |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/430846 | - |
dc.description.abstract | © 2019 The Author(s) The objectives of this study were to investigate the amount of B incorporation into precipitated calcium carbonate (PCC) in the coprecipitation process, and to determine specific mineral phases (calcite or vaterite) and the mode of B coordination (trigonal or tetrahedral) in PCC under different pH and B concentrations. The amount of B incorporation into PCC increased in general with increasing aqueous B (Baq) concentrations in the pH range from 8 to 12. The B removal by PCC reached maximum (∼200 mmol kg−1) at pH 10 with Baq concentrations between 30 and 50 mM. The transformation of vaterite to calcite was promoted with increasing Baq at pH 8 and 10, whereas an excess concentration of aqueous (poly)borate anions (100 mM) inhibited crystal growth of calcite. As determined by B K-edge X-ray absorption fine structure spectroscopy, the coordination of B incorporated in PCC was preferentially tetrahedral (IVB, 55–70%) over trigonal (IIIB, 30–45%) at Baq <75 mM. In contrast, the preferential incorporation of IVB into PCC was not observed in the solution with a high B concentration (i.e., 100 mM). The amount of B incorporation, the morphology of PCC and B coordination in PCC were remarkably changed in high Baq concentrations. | en |
dc.relation.ispartof | Journal of Hazardous Materials | en |
dc.subject | Borate | Boric acid | Coprecipitation | Polyborate | X-ray absorption spectroscopy | en |
dc.title | Boron incorporation into precipitated calcium carbonates affected by aqueous pH and boron concentration | en |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/j.jhazmat.2019.121183 | en |
dc.identifier.pmid | 31639611 | en |
dc.identifier.scopus | 2-s2.0-85073453720 | en |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85073453720 | en |
dc.relation.journalvolume | 383 | en |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
crisitem.author.dept | Agricultural Chemistry | - |
crisitem.author.orcid | 0000-0003-3156-5365 | - |
crisitem.author.parentorg | College of Bioresources and Agriculture | - |
顯示於: | 農業化學系 |
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