CaCO_(3)晶须生长基元的指认、稳定能的计算及其生长机制  

Designation of Growth Units,Calculation of Stability Energy and Growth Mechanism of CaCO_(3)Whiskers

作　　者：吴健松 李康艳 徐文雅 杜玉蓉 陈昱明 吴淑扬 龙静怡 WU Jian-song;LI Kang-yan;XU Wen-ya;DU Yu-rong;CHENG Yu-ming;WU Shu-yang;LONG Jing-yi(College of Science of Guangdong Preschool Normal College in Maoming,Maoming 525000,China;College of Chemistry and Chemical Engineering of Lingnan Normal University,Zhanjiang 524048,China)

机构地区：[1]广东茂名幼儿师范专科学校理学院,广东茂名525000 [2]岭南师范学院化学化工学院,广东湛江524048

出　　处：《盐科学与化工》2023年第4期20-23,共4页Journal of Salt Science and Chemical Industry

基　　金：2021年广东省科技创新战略专项资金资助项目(2021S0060);广东省教育厅2021年普通高校特色创新项目(2021KTSCX329);广东省科技计划(2013B021100019)。

摘　　要：采用前期制备CaCO_(3)晶须的生长液作为研究对象。通过傅里叶变换谱线指认了CaCO_(3)晶须和片状Mg(OH)2生长基元,并计算了它们的生长基元稳定能。进一步推断碳酸钙晶须和片状氢氧化镁晶体生长机制。傅里叶变换发现在CaCO_(3)晶须的生长期生长基元有四面体的[M-(OH)4]2-和平面结构的HCO-3两种,在片状Mg(OH)2生长期只有八面体[M-(OH)6]4-一种。CaCO_(3)晶须生长过程和片状Mg(OH)2生长过程并不相同。文章还推断了CaCO_(3)晶须生长机制。The growth solution of CaCO_(3)whiskers prepared in the early stage was used as the research object.The growth units of CaCO_(3)whiskers and lamellar Mg(OH)2 were identified by Fourier transform spectroscopy,and their growth unit stability energies were calculated.The growth mechanism of calcium carbonate whisker and lamellar magnesium hydroxide crystal was further deduced.Fourier transform found that during the growth period of CaCO_(3)whiskers,there were two kinds of growth units,tetrahedra[M-(OH)4]2-and planar HCO-3,and only octahedral[M-(OH)6]4-during the growth period of sheet Mg(OH)2.The growth process of CaCO_(3)whisker is different from that of flake Mg(OH)2.The growth mechanism of CaCO_(3)whiskers was also deduced.

关 键 词：傅里叶变换 碳酸钙晶须 生长基元 生长机制 

分 类 号：TQ132.3[化学工程—无机化工]