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《Journal of Tianjin University of Science & Technology》 2015-02
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The Role of Hydroxyl Group of Bacterial Cellulose in Biomimetic Mineralization

ZENG Wei;CAI Zhixing;LIANG Ansheng;XIONG Jian;MENG Nan;LIU Xia;College of Material Science and Chemical Engineering,Tianjin University of Science & Technology;  
Biomimetic mineralization method was used to fabricate nano-silica utilizing tetraethyl orthosilicate(TEOS)as the precursor and bacteria cellulose and its modified products as templates at room temperature. Effects of hydroxyl group on the mineralization process were studied by means of scanning electron microscope(SEM),X-ray diffraction(XRD),and infrared spectroscopy(IR). The results showed that hydroxyl groups of bacterial cellulose played a crucial role in the mineralization reaction. Synergistic effects occurred with all the three hydroxyls in the structure units of polysaccharides and silica sources,which made silica precursor uniformly deposited on the template surfaces.The template morphology was completely copied.
【Fund】: 国家自然科学基金资助项目(51102179);; “大学生创新创业计划”资助项目(201310057056)
【CateGory Index】: TQ127.2
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