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dc.contributor.authorSun, Sijia
dc.contributor.authorDing, Hao
dc.contributor.authorWang, Jie
dc.contributor.authorLi, Wei
dc.contributor.authorHao, Qiang
dc.date.accessioned2022-02-07T03:31:46Z
dc.date.available2022-02-07T03:31:46Z
dc.date.issued2020
dc.identifier.issn0272-8842
dc.identifier.doi10.1016/j.ceramint.2020.06.068
dc.identifier.urihttp://hdl.handle.net/10072/412052
dc.description.abstractIn this study, a microsphere SiO2/TiO2 composite pigment (M-SiO2/TiO2) was prepared through a facile grinding and calcination process. The structure and properties of M-SiO2/TiO2 were characterized in detail, and the mechanism governing the improvement of pigment properties by M-SiO2 was proposed. The results of this study show that M-SiO2 and TiO2 are successfully compounded, and their combination is inferred to be achieved by the formation of Si-O-Ti bonds through the hydroxyl groups on their surface. The M-SiO2/TiO2 has almost the same pigment properties as pure titanium dioxide, while the weight fraction of TiO2 in M-SiO2/TiO2 is 70%, which can significantly reduce the consumption of TiO2. In M-SiO2/TiO2, the introduction of M-SiO2 leads to the improvement of the rutile-phase conversion of TiO2, as well as reducing TiO2 particle size; thus, this step can further improve the pigment properties. When the calcination temperature is 900 °C, the TiO2 in M-SiO2/TiO2 is primarily rutile (rutile conversion rate is 88.57%) with a particle size of 0.1-0.3 μm, exhibiting good dispersion. In contrast, pure TiO2 is primarily composed of anatase (rutile conversion rate is 11.39%) with a particle size of 0.2-0.6 μm, exhibiting serious agglomeration. The M-SiO2/TiO2 composite is expected to be applied in the fields of paint, plastic, and papermaking in an effort to significantly reduce the cost and consumption of TiO2 pigment.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherElsevier
dc.relation.ispartofpagefrom22944
dc.relation.ispartofpageto22953
dc.relation.ispartofissue14
dc.relation.ispartofjournalCeramics International
dc.relation.ispartofvolume46
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchCreative arts and writing
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode34
dc.subject.fieldofresearchcode36
dc.subject.fieldofresearchcode40
dc.subject.keywordsScience & Technology
dc.subject.keywordsMaterials Science, Ceramics
dc.subject.keywordsSiO2
dc.titlePreparation of a microsphere SiO2/TiO2 composite pigment: The mechanism of improving pigment properties by SiO2
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationSun, S; Ding, H; Wang, J; Li, W; Hao, Q, Preparation of a microsphere SiO2/TiO2 composite pigment: The mechanism of improving pigment properties by SiO2, Ceramics International, 2020, 46 (14), pp. 22944-22953
dc.date.updated2022-02-04T05:08:00Z
gro.hasfulltextNo Full Text
gro.griffith.authorHao, Derek


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