论文部分内容阅读
生物矿化作用是在有机基质全程参与调控与诱导下形成矿物的过程。本文以钙锶为研究对象,通过小球藻对钙锶的生物矿化诱导,探索钙锶形成稳定矿化体的条件和方法。通过SEM,FT-IR和XRD来考察小球藻表面基团酯基屏蔽前后对钙锶生物矿物的影响。结果表明:1锶离子浓度较高时,晶体更易生成文石结构;2钙离子浓度偏高时,则更偏爱方解石;3在小球藻的作用下,晶体的取向更易受浓度较大的离子的影响;4当屏蔽小球藻表面基团酯基后,钙离子及锶离子对晶体的成核取向上的调控能力减弱。简言之,小球藻表面基团酯基能促进晶型的转换,并且对晶体的形貌具有一定的调控能力
Biomineralization is the process of mineral formation under the full control and induction of organic substrates. In this paper, calcium and strontium as the object of study, through the mineralization of calcium and strontium Chlorella induction of calcium and strontium to explore the formation of stable mineralization conditions and methods. The effects of ester groups on the calcium-strontium bio-minerals were investigated by SEM, FT-IR and XRD. The results show that: 1 strontium ion concentration is higher, the crystal is more likely to produce aragonite structure; 2 calcium ion concentration is higher, the preference for calcite; 3 in the role of chlorella, the crystal orientation is more susceptible to higher concentrations of ions ; 4 when the surface of chlorella group blocked ester groups, calcium and strontium ions on the crystal nucleation orientation on the regulatory capacity weakened. In short, the ester group of chlorella surface groups can promote the conversion of the crystal form, and has some ability to control the morphology of the crystal