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Mineralization Mechanism of Mineralization Bacteria on Strontium Crystallization of Simulated Radionuclides
Author(s) -
Tian Xiuquan,
Zhang Yingchun,
Zhang Jian,
Ye Zhiyang,
Lian Jie,
Duan Tao,
He Rong,
Zhu Wenkun
Publication year - 2020
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201900133
Subject(s) - mineralization (soil science) , strontium carbonate , strontium , crystallization , nucleation , biomineralization , carbonate , mineralogy , chemistry , crystal growth , chemical engineering , crystallography , organic chemistry , nitrogen , engineering
Abstract Microbial‐induced carbonate crystallization is a natural biological process in which microbes produce inorganic materials as part of their basic metabolic activities. Herein, the influence of the bacterial somatic solution and secretion solution on the crystal growth behavior of strontium carbonate (SrCO 3 ) is studied. The mineralization mechanism of carbonate mineralizing bacteria on simulated radionuclides (Sr 2+ ) is also demonstrated. The results reveal that the morphology of SrCO 3 crystal formed by involvement of microbes is greatly different with chemical method, which means that microbes play a critical role during the SrCO 3 crystallization process. Briefly, bacterial somatic provides nucleation sites for SrCO 3 during both the nucleation and growth processes. In addition, bacterial secretions play a vital role in regulating the morphology of mineralized products. This work unveils the mineralization process of strontium nuclides, providing reference for the control of crystal morphologies and structural properties of the SrCO 3 .