ICCAS OpenIR
Influence of polyvinylpyrrolidone on the precipitation of calcium carbonate and on the transformation of vaterite to calcite
Wei, H; Shen, Q; Zhao, Y; Wang, DJ; Xu, DF
2003-04-01
Source PublicationJOURNAL OF CRYSTAL GROWTH
ISSN0022-0248
Volume250Issue:3-4Pages:516-524
AbstractThe Precipitation process of calcium carbonate (CaCO3) in the absence and presence of poly (N-vinyl-2-pyrrolidone) (PVP) was investigated using scanning electron microscopy, powder X-ray diffraction, and Fourier transform infrared spectroscopy methods at room temperature. The results indicate that PVP does not affect the polymorphy, but has influence on their morphology and size of CaCO3 crystals. With the addition of PVP, the amorphous CaCO3 could aggregate into bigger amorphous spherulites before transforming to crystalline state. Also, the transformation from the thermodynamically unstable vaterite to the stable calcite was investigated in the presence of PVP. As a particle-stabilizing agent, PVP molecules inhibit the formation of vaterite, however, promote the formation of calcite as well as the rate of the solvent-mediated. transformation from vaterite to calcite. (C) 2003 Elsevier Science B.V. All rights reserved.
KeywordKinetics Of Precipitation Transformation Calcite Poly(Yinylpyrrolidone) Vaterite
DOI10.1016/S0022-0248(02)02484-3
Indexed BySCI
Language英语
WOS IDWOS:000181517900034
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:106[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80572
Collection中国科学院化学研究所
Corresponding AuthorShen, Q
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China
2.Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Educ Minist, Jinan 250100, Peoples R China
Recommended Citation
GB/T 7714
Wei, H,Shen, Q,Zhao, Y,et al. Influence of polyvinylpyrrolidone on the precipitation of calcium carbonate and on the transformation of vaterite to calcite[J]. JOURNAL OF CRYSTAL GROWTH,2003,250(3-4):516-524.
APA Wei, H,Shen, Q,Zhao, Y,Wang, DJ,&Xu, DF.(2003).Influence of polyvinylpyrrolidone on the precipitation of calcium carbonate and on the transformation of vaterite to calcite.JOURNAL OF CRYSTAL GROWTH,250(3-4),516-524.
MLA Wei, H,et al."Influence of polyvinylpyrrolidone on the precipitation of calcium carbonate and on the transformation of vaterite to calcite".JOURNAL OF CRYSTAL GROWTH 250.3-4(2003):516-524.
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