Biomimetic interfacial assembly of CaCO3 microspheres using egg-white foam and their interaction with Sr2+. Issue 15 (15th October 2017)

• Record Type: Journal Article
• Authors: Qiao, Zheng; Liu, Xun; Duan, Xiaohui; Zhou, Yong; Pei, Chonghua; Ma, Yongjun
• Is Part Of: Ceramics international. Volume 43:Issue 15(2017)
• Page Start: 12870
• Page End: 12875
• Publication Date: 2017-10-15
• Subjects: Egg-white foam -- Calcium carbonate -- Biomimetic mineralization -- Strontium ions; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2017.06.179
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Since egg-white protein is an excellent amphoteric surfactant and an outstanding regulator of CaCO3 mineralization, we prepared an egg-white foam as the organic matrix and template to regulate mineralization of CaCO3 and assemble primary mineralization particles. Samples were characterized by scanning electron microscopy, powder X-ray diffraction, Fourier transform infrared spectroscopy and high-resolution transmission electron microscopy, showing that the particles are homogeneous (2 µm) vaterite spherules of CaCO3 . The results of the interaction between the particles and Sr 2+ show that Sr 2+ can induce transformation of the particles from vaterite to calcite and that it is simultaneously adsorbed by the particles, reaching 89.9% adsorption after 36 h.