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The Influence of Air Nanobubbles on Controlling the Synthesis of Calcium Carbonate Crystals
School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.
School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.
School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.
School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.
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2022 (English)In: Materials, E-ISSN 1996-1944, Vol. 15, no 21, article id 7437Article in journal (Refereed) Published
Abstract [en]

Numerous approaches have been developed to control the crystalline and morphology of calcium carbonate. In this paper, nanobubbles were studied as a novel aid for the structure transition from vaterite to calcite. The vaterite particles turned into calcite (100%) in deionized water containing nanobubbles generated by high-speed shearing after 4 h, in comparison to a mixture of vaterite (33.6%) and calcite (66.3%) by the reaction in the deionized water in the absence of nanobubbles. The nanobubbles can coagulate with calcite based on the potential energy calculated and confirmed by the extended DLVO (Derjaguin–Landau–Verwey–Overbeek) theory. According to the nanobubble bridging capillary force, nanobubbles were identified as the binder in strengthening the coagulation between calcite and vaterite and accelerated the transformation from vaterite to calcite.

Place, publisher, year, edition, pages
MDPI , 2022. Vol. 15, no 21, article id 7437
Keywords [en]
calcium carbonate, capillary force, crystal-control, extended DLVO theory, nanobubbles, transformation
National Category
Physical Chemistry
Research subject
Waste Science and Technology
Identifiers
URN: urn:nbn:se:ltu:diva-94301DOI: 10.3390/ma15217437ISI: 000881189900001PubMedID: 36363030Scopus ID: 2-s2.0-85141846954OAI: oai:DiVA.org:ltu-94301DiVA, id: diva2:1713898
Note

Validerad;2022;Nivå 2;2022-11-28 (hanlid);

Funder: Natural Science Foundation of China (NSFC 21976039); Guangxi Bagui scholars

Available from: 2022-11-28 Created: 2022-11-28 Last updated: 2024-07-04Bibliographically approved

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Otsuki, Akira

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